Rilevazione di un browser mobile

Sto cercando una funzione che restituisca il valore booleano se l’utente ha o meno un browser mobile.

So che posso usare navigator.userAgent e scrivere quella funzione usando regex, ma gli user-agent sono troppo diversi per piattaforms diverse. Dubito che abbinare tutti i dispositivi possibili sarebbe facile, e penso che questo problema sia stato risolto molte volte quindi ci dovrebbe essere una sorta di soluzione completa per tale compito.

Stavo guardando questo sito , ma purtroppo la sceneggiatura è così criptica che non ho idea di come usarla per il mio scopo, ovvero creare una funzione che restituisca vero / falso.

    Utilizzando Regex (da detectmobilebrowsers.com ):

    Ecco una funzione che utilizza una regex incredibilmente lunga e completa che restituisce un valore vero o falso a seconda che l’utente stia navigando con un dispositivo mobile.

     window.mobilecheck = function() { var check = false; (function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[aw])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4))) check = true;})(navigator.userAgent||navigator.vendor||window.opera); return check; }; 

    Per coloro che desiderano includere compresse in questo test (anche se probabilmente non si dovrebbe), è ansible utilizzare la seguente funzione:

     window.mobileAndTabletcheck = function() { var check = false; (function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino|android|ipad|playbook|silk/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[aw])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4))) check = true;})(navigator.userAgent||navigator.vendor||window.opera); return check; }; 

    La risposta originale

    Puoi farlo semplicemente scorrendo un elenco di dispositivi e controllando se l’useragent corrisponde a qualcosa del genere:

     function detectmob() { if( navigator.userAgent.match(/Android/i) || navigator.userAgent.match(/webOS/i) || navigator.userAgent.match(/iPhone/i) || navigator.userAgent.match(/iPad/i) || navigator.userAgent.match(/iPod/i) || navigator.userAgent.match(/BlackBerry/i) || navigator.userAgent.match(/Windows Phone/i) ){ return true; } else { return false; } } 

    Tuttavia, poiché ritieni che questo metodo sia inaffidabile, puoi presumere che qualsiasi dispositivo con una risoluzione di 800×600 o inferiore fosse anche un dispositivo mobile, restringendo ulteriormente il tuo objective (sebbene in questi giorni molti dispositivi mobili abbiano risoluzioni molto più grandi di questo)

    vale a dire

     function detectmob() { if(window.innerWidth < = 800 && window.innerHeight <= 600) { return true; } else { return false; } } 

    Riferimento:

    • Rilevamento di browser e dispositivi con javascript

    Che ne dite di:

     if (typeof window.orientation !== 'undefined') { ... } 

    … poiché gli smartphone di solito supportano questa proprietà e i browser desktop no.

     var isMobile = { Android: function() { return navigator.userAgent.match(/Android/i); }, BlackBerry: function() { return navigator.userAgent.match(/BlackBerry/i); }, iOS: function() { return navigator.userAgent.match(/iPhone|iPad|iPod/i); }, Opera: function() { return navigator.userAgent.match(/Opera Mini/i); }, Windows: function() { return navigator.userAgent.match(/IEMobile/i) || navigator.userAgent.match(/WPDesktop/i); }, any: function() { return (isMobile.Android() || isMobile.BlackBerry() || isMobile.iOS() || isMobile.Opera() || isMobile.Windows()); } }; 

    Come usare

     if( isMobile.any() ) alert('Mobile'); 

    Per verificare se l’utente si trova su uno specifico dispositivo mobile:

     if( isMobile.iOS() ) alert('iOS'); 

    Rif: http://www.abeautifulsite.net/blog/2011/11/detecting-mobile-devices-with-javascript

    Versione migliorata su github: https://github.com/smali-kazmi/detect-mobile-browser

    Ecco una soluzione semplice dalla fonte della fionda di Facebook

     var isMobile = /iPhone|iPad|iPod|Android/i.test(navigator.userAgent); if (isMobile) { /* your code here */ } 

    Sono venuto qui alla ricerca di un modo semplice e pulito per rilevare i “dispositivi touch screen”, che io classifico come mobile e tablet. Non ho trovato una scelta pulita nelle risposte attuali, ma ho risolto il problema che potrebbe anche aiutare qualcuno.

     var touchDevice = ('ontouchstart' in document.documentElement); 

    Modifica : per supportare i desktop con touch screen e cellulari allo stesso tempo, puoi utilizzare quanto segue:

     var touchDevice = (navigator.maxTouchPoints || 'ontouchstart' in document.documentElement); 

    Non esiste una soluzione perfetta per rilevare se il codice JS è eseguito su un browser mobile, ma le seguenti due opzioni dovrebbero funzionare nella maggior parte dei casi.

    Opzione 1: sniffing del browser

     !function(a){var b=/iPhone/i,c=/iPod/i,d=/iPad/i,e=/(?=.*\bAndroid\b)(?=.*\bMobile\b)/i,f=/Android/i,g=/(?=.*\bAndroid\b)(?=.*\bSD4930UR\b)/i,h=/(?=.*\bAndroid\b)(?=.*\b(?:KFOT|KFTT|KFJWI|KFJWA|KFSOWI|KFTHWI|KFTHWA|KFAPWI|KFAPWA|KFARWI|KFASWI|KFSAWI|KFSAWA)\b)/i,i=/IEMobile/i,j=/(?=.*\bWindows\b)(?=.*\bARM\b)/i,k=/BlackBerry/i,l=/BB10/i,m=/Opera Mini/i,n=/(CriOS|Chrome)(?=.*\bMobile\b)/i,o=/(?=.*\bFirefox\b)(?=.*\bMobile\b)/i,p=new RegExp("(?:Nexus 7|BNTV250|Kindle Fire|Silk|GT-P1000)","i"),q=function(a,b){return a.test(b)},r=function(a){var r=a||navigator.userAgent,s=r.split("[FBAN");return"undefined"!=typeof s[1]&&(r=s[0]),s=r.split("Twitter"),"undefined"!=typeof s[1]&&(r=s[0]),this.apple={phone:q(b,r),ipod:q(c,r),tablet:!q(b,r)&&q(d,r),device:q(b,r)||q(c,r)||q(d,r)},this.amazon={phone:q(g,r),tablet:!q(g,r)&&q(h,r),device:q(g,r)||q(h,r)},this.android={phone:q(g,r)||q(e,r),tablet:!q(g,r)&&!q(e,r)&&(q(h,r)||q(f,r)),device:q(g,r)||q(h,r)||q(e,r)||q(f,r)},this.windows={phone:q(i,r),tablet:q(j,r),device:q(i,r)||q(j,r)},this.other={blackberry:q(k,r),blackberry10:q(l,r),opera:q(m,r),firefox:q(o,r),chrome:q(n,r),device:q(k,r)||q(l,r)||q(m,r)||q(o,r)||q(n,r)},this.seven_inch=q(p,r),this.any=this.apple.device||this.android.device||this.windows.device||this.other.device||this.seven_inch,this.phone=this.apple.phone||this.android.phone||this.windows.phone,this.tablet=this.apple.tablet||this.android.tablet||this.windows.tablet,"undefined"==typeof window?this:void 0},s=function(){var a=new r;return a.Class=r,a};"undefined"!=typeof module&&module.exports&&"undefined"==typeof window?module.exports=r:"undefined"!=typeof module&&module.exports&&"undefined"!=typeof window?module.exports=s():"function"==typeof define&&define.amd?define("isMobile",[],a.isMobile=s()):a.isMobile=s()}(this); alert(isMobile.any ? 'Mobile' : 'Not mobile'); 

    Il rilevamento delle feature è molto meglio che cercare di capire quale dispositivo si è acceso e molto difficile tenere il passo con i nuovi dispositivi che escono in continuazione, una libreria come Modernizr ti consente di sapere se una particolare funzionalità è disponibile o meno.

    Per aggiungere un ulteriore livello di controllo, utilizzo lo spazio di archiviazione HTML5 per rilevare se sta utilizzando lo spazio di archiviazione mobile o desktop. Se il browser non supporta l’archiviazione, ho una serie di nomi di browser per dispositivi mobili e confronto l’agente utente con i browser dell’array.

    È piuttosto semplice Ecco la funzione:

     // Used to detect whether the users browser is an mobile browser function isMobile() { ///Detecting whether the browser is a mobile browser or desktop browser ///A boolean value indicating whether the browser is a mobile browser or not if (sessionStorage.desktop) // desktop storage return false; else if (localStorage.mobile) // mobile storage return true; // alternative var mobile = ['iphone','ipad','android','blackberry','nokia','opera mini','windows mobile','windows phone','iemobile']; for (var i in mobile) if (navigator.userAgent.toLowerCase().indexOf(mobile[i].toLowerCase()) > 0) return true; // nothing found.. assume desktop return false; } 

    Che ne dici di questo?

     if( (screen.width < = 640) || (window.matchMedia && window.matchMedia('only screen and (max-width: 640px)').matches ) ){ // Do the mobile thing } 

    Ecco una soluzione userAgent che è più efficace rispetto alla corrispondenza …

     function _isMobile(){ // if we want a more complete list use this: http://detectmobilebrowsers.com/ // str.test() is more efficent than str.match() // remember str.test is case sensitive var isMobile = (/iphone|ipod|android|ie|blackberry|fennec/).test (navigator.userAgent.toLowerCase()); return isMobile; } 

    Ecco la mia soluzione ripensata per il problema. Ancora non perfetto. L’unica vera soluzione sarebbe se i produttori di dispositivi iniziassero a prendere sul serio le stringhe user-agent “Mobile” e “Tablet”.

     window.onload = userAgentDetect; function userAgentDetect() { if(window.navigator.userAgent.match(/Mobile/i) || window.navigator.userAgent.match(/iPhone/i) || window.navigator.userAgent.match(/iPod/i) || window.navigator.userAgent.match(/IEMobile/i) || window.navigator.userAgent.match(/Windows Phone/i) || window.navigator.userAgent.match(/Android/i) || window.navigator.userAgent.match(/BlackBerry/i) || window.navigator.userAgent.match(/webOS/i)) { document.body.className += ' mobile'; alert('True - Mobile - ' + navigator.userAgent); } else { alert('False - Mobile - ' + navigator.userAgent); } if(window.navigator.userAgent.match(/Tablet/i) || window.navigator.userAgent.match(/iPad/i) || window.navigator.userAgent.match(/Nexus 7/i) || window.navigator.userAgent.match(/Nexus 10/i) || window.navigator.userAgent.match(/KFAPWI/i)) { document.body.className -= ' mobile'; document.body.className += ' tablet'; alert('True - Tablet - ' + navigator.userAgent); } else { alert('False - Tablet - ' + navigator.userAgent); } } 

    Cosa succede quando il tablet Nexus 7 ha solo la stringa UA Android? In primo luogo, il Mobile diventa vero, che in seguito anche il Tablet diventerà vero, ma Tablet cancellerà la stringa Mobile UA dal tag body.

    CSS:

     body.tablet { background-color: green; } body.mobile { background-color: red; } 

    linee di alert aggiunte per lo sviluppo. La console di Chrome può emulare molti dispositivi portatili. Prova lì

    MODIFICARE:

    Basta non usare questo, utilizzare invece il rilevamento delle funzioni. Ci sono così tanti dispositivi e marchi là fuori che mirano a un marchio. MAI sarà la soluzione giusta.

    Un ottimo modo per rilevare dispositivi mobili o tablet è controllare se il browser può creare un evento touch.

    Semplice codice JavaScript:

     function isMobile() { try{ document.createEvent("TouchEvent"); return true; } catch(e){ return false; } } if (isMobile()) { # do whatever you wanna do! } 

    Questo ha funzionato molto bene per me, ma potrebbe esserci un problema con i dispositivi portatili che includono un display touchscreen.

    Non sono sicuro che un laptop touchscreen verrà rilevato come dispositivo mobile perché non l’ho ancora provato.

    Ti consiglio di controllare http://wurfl.io/

    In poche parole, se importi un piccolo file JS:

      

    rimarrai con un object JSON che assomiglia a:

     { "complete_device_name":"Google Nexus 7", "is_mobile":true, "form_factor":"Tablet" } 

    (supponendo che tu stia utilizzando un Nexus 7, ovviamente) e sarai in grado di fare cose come:

     if(WURFL.form_factor == "Tablet"){ //dostuff(); } 

    Questo e ciò che stai cercando.

    Disclaimer: lavoro per la compagnia che offre questo servizio gratuito. Grazie.

    Una volta che l’elemento ottiene la messa a fuoco, lo offuschi immediatamente. Bootstrap-datepicker, che è un componente molto popolare e ben mantenuto con quasi 10.000 stelle in GitHub, utilizza questo approccio:

     if (window.navigator.maxTouchPoints || 'ontouchstart' in document) { this.input.blur(); } 

    https://github.com/uxsolutions/bootstrap-datepicker

    Grazie a Tigger per l’assistenza.

    C’è un trucco semplice per rilevare se si tratta di un dispositivo mobile o meno. Basta controllare se l’evento onuchstart esiste:

     function isMobile() { return "ontouchstart" in window; } 

    Secondo l’articolo di MDN sul rilevamento del browser utilizzando l’agente utente , è consigliabile evitare questo approccio se ansible e suggerire altre vie come il rilevamento delle funzionalità.

    Tuttavia, se è necessario utilizzare l’agente utente come mezzo per rilevare se il dispositivo è mobile, suggerisce:

    In sintesi, si consiglia di cercare la stringa “Mobi” in qualsiasi punto dell’agente utente per rilevare un dispositivo mobile.

    Pertanto, questo one-liner sarà sufficiente:

    const isMobileDevice = window.navigator.userAgent.toLowerCase().includes("mobi");

    Il meglio deve essere:

     var isMobile = (/Mobile/i.test(navigator.userAgent)); 

    Ma come dice Yoav Barnea …

     // Seem legit var isMobile = ('DeviceOrientationEvent' in window || 'orientation' in window); // But with my Chrome on windows, DeviceOrientationEvent == fct() if (/Windows NT|Macintosh|Mac OS X|Linux/i.test(navigator.userAgent)) isMobile = false; // My android have "linux" too if (/Mobile/i.test(navigator.userAgent)) isMobile = true; 

    Dopo questi 3 test, spero che var isMobile sia … ok

    Qui è piena funzionalità

     function isMobile(){ return (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino|android|ipad|playbook|silk/i.test(navigator.userAgent||navigator.vendor||window.opera)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[aw])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test((navigator.userAgent||navigator.vendor||window.opera).substr(0,4))) } jQuery.noConflict(); jQuery(document).ready(function(){ if(isMobile()) alert("Mobile"); else alert("Not Mobile"); }); 
     //true / false function isMobile() { return (/Android|webOS|iPhone|iPad|iPod|BlackBerry/i.test(navigator.userAgent) ); } 

    also you can follow this tutorial to detect a specific mobile. Click here .

    what about using “window.screen.width” ?

     if (window.screen.width < 800) { // do something } 

    o

     if($(window).width() < 800) { //do something } 

    I guess this is the best way because there is a new mobile device every day !

    (although I think it's not that supported in old browsers, but give it a try 🙂 )

    Note that Most newer-gen mobile devices now have resolutions greater than 600×400. ie, an iPhone 6….

    Proof of test: ran the most upvoted and most recent posts here, with an optional check once run like so:

     (function(a){ window.isMobile = (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[aw])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4))) })(navigator.userAgent||navigator.vendor||window.opera); alert("This browser was found to be a % browser.", window.isMobile ? 'mobile' : 'desktop'); 

    Somehow, the following results were returned on the following Browser Apps. Specs: iPhone 6S, iOS 10.3.1.

    Safari (latest): Detected it as a mobile.

    Chrome (latest): Did not detect it as a mobile.

    SO, i then tested the suggestion from Lanti ( https://stackoverflow.com/a/31864119/7183483 ), and it did return the proper results (mobile for all iOS devices, and desktop for my Mac). Therefore, i proceeded to edit it a little since it would fire twice (for both mobile and Tablet). I then noticed when testing on an iPad, that it also returned as a mobile, which makes sense, since the Parameters that Lanti uses check the OS more than anything. Therefore, i simply moved the tablet IF statement inside the mobile check, which would return mobile is the Tablet check was negative, and tablet otherwise. I then added the else clause for the mobile check to return as desktop/laptop, since both qualify, but then noticed that the browser detects CPU and OS brand. So i added what is returned in there as part of else if statement instead. To cap it, I added a cautionary else statement in case nothing was detected. See bellow, will update with a test on a Windows 10 PC soon.

    Oh, and i also added a ‘debugMode’ variable, to easily switch between debug and normal compiling.

    Dislaimer: Full credit to Lanti , also that this was not tested on Windows Tablets… which might return desktop/laptop, since the OS is pure Windows. Will check once I find a friend who uses one.

     function userAgentDetect() { let debugMode = true; if(window.navigator.userAgent.match(/Mobile/i) || window.navigator.userAgent.match(/iPhone/i) || window.navigator.userAgent.match(/iPod/i) || window.navigator.userAgent.match(/IEMobile/i) || window.navigator.userAgent.match(/Windows Phone/i) || window.navigator.userAgent.match(/Android/i) || window.navigator.userAgent.match(/BlackBerry/i) || window.navigator.userAgent.match(/webOS/i)) { if (window.navigator.userAgent.match(/Tablet/i) || window.navigator.userAgent.match(/iPad/i) || window.navigator.userAgent.match(/Nexus 7/i) || window.navigator.userAgent.match(/Nexus 10/i) || window.navigator.userAgent.match(/KFAPWI/i)) { window.deviceTypeVar = 'tablet'; if (debugMode === true) { alert('Device is a tablet - ' + navigator.userAgent); } } else { if (debugMode === true) { alert('Device is a smartphone - ' + navigator.userAgent); }; window.deviceTypeVar = 'smartphone'; } } else if (window.navigator.userAgent.match(/Intel Mac/i)) { if (debugMode === true) { alert('Device is a desktop or laptop- ' + navigator.userAgent); } window.deviceTypeVar = 'desktop_or_laptop'; } else if (window.navigator.userAgent.match(/Nexus 7/i) || window.navigator.userAgent.match(/Nexus 10/i) || window.navigator.userAgent.match(/KFAPWI/i)) { window.deviceTypeVar = 'tablet'; if (debugMode === true) { alert('Device is a tablet - ' + navigator.userAgent); } } else { if (debugMode === true) { alert('Device is unknown- ' + navigator.userAgent); } window.deviceTypeVar = 'Unknown'; } } 

    This is just an es6 port of the accepted answer that I’m using in my project. Note that this also includes tablets.

     export const isMobile = () => { const vendor = navigator.userAgent || navigator.vendor || window.opera; return !!( /(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino|android|ipad|playbook|silk/i.test( vendor ) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw-(n|u)|c55\/|capi|ccwa|cdm-|cell|chtm|cldc|cmd-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc-s|devi|dica|dmob|do(c|p)o|ds(12|-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(-|_)|g1 u|g560|gene|gf-5|g-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd-(m|p|t)|hei-|hi(pt|ta)|hp( i|ip)|hs-c|ht(c(-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i-(20|go|ma)|i230|iac( |-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|-[aw])|libw|lynx|m1-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|-([1-8]|c))|phil|pire|pl(ay|uc)|pn-2|po(ck|rt|se)|prox|psio|pt-g|qa-a|qc(07|12|21|32|60|-[2-7]|i-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h-|oo|p-)|sdk\/|se(c(-|0|1)|47|mc|nd|ri)|sgh-|shar|sie(-|m)|sk-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h-|v-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl-|tdg-|tel(i|m)|tim-|t-mo|to(pl|sh)|ts(70|m-|m3|m5)|tx-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas-|your|zeto|zte-/i.test( vendor.substr(0, 4) ) ); }; 
     return 'ontouchstart' in window && window.screen.availWidth < 768 

    heres a one liner

     function isMobile() { return (typeof window.orientation !== "undefined") || (navigator.userAgent.indexOf('IEMobile') !== -1); }; 

    This could also be a solution.

     var isMobile = false; //initiate as false // device detection if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(navigator.userAgent) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[aw])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(navigator.userAgent.substr(0,4))) isMobile = true; console.log('Mobile device:'+isMobile); var doc_h = $(document).height(); // returns height of HTML document var doc_w = $(document).width(); // returns width of HTML document console.log('Height: '+doc_h); console.log('width: '+doc_w); var iPadVertical = window.matchMedia("(width: 768px) and (height: 1024px) and (orientation: portrait)"); var iPadHoricontal = window.matchMedia("(width: 1024px) and (height: 767px) and (orientation: landscape)"); console.log('Height: '+doc_h); console.log('width: '+doc_w); if (iPadVertical.matches) { console.log('Ipad vertical detected'); }else if (iPadHoricontal.matches){ console.log('Ipad horicontal detected'); }else { console.log('No Ipad'); } 

    If you use both methods, you will get a perfect way to detect different devices.

    Here’s an ECMAScript 6 solution (TypeScript ready)

     public isMobile(): boolean { let check = false; ((a => { if (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[aw])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0, 4))) check = true; }))(navigator.userAgent || navigator.vendor); return check; } 

    In any case, checking for type of device must be called just ONE TIME: your phone can’t surprisingly stay a desktop in a moment 🙂

    So, code for checking by userAgent, suggested here sometime ago, have to be look like that:

     (function(a){window.isMobile = (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[aw])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4)))})(navigator.userAgent||navigator.vendor||window.opera); console.info('This is %s device', window.isMoblie ? 'mobile' : 'desktop'); 

    As many have stated, relying on the moving target of the user agent data is problematic. The same can be said for counting on screen size. My approach is borrowed from a CSS technique to determine if the interface is touch. Using pure javascript (support by all modern browsers), a media query you can easily determine when the device is mobile.

     function isMobile() { if(typeof window.matchMedia != 'undefined' || typeof window.msMatchMedia != 'undefined') { var mq = window.matchMedia("(pointer:coarse)"); return mq.matches; } return false; } 

    If you’re looking for a mobile phone, since they’re portrait oriented in most cases, you can use this simple check:

     if ($(window).width() > $(window).height()) alert('Landscape'); // usually tablet or desktop else alert('Portrait'); // usually mobile phone 

    NOTE: this is not a reliable solution, but it will work in most cases!

    I usually find that the simpler approach of checking the visibility of a particular element (say burger icon) that is only visible on mobile views works well and is far safer than relying on a very complicated regex. That would be difficult to test works 100%.

     function isHidden(el) { return (el.offsetParent === null); }