I use Javascript code
if( (Android|webOS|iPhone|iPad|iPod|BlackBerry).test(navigator.userAgent) ) {}
for mobile device detection, but Chrom
if you want simple true/false answer:
if(/CriOS/i.test(navigator.userAgent) && /iphone|ipod|ipad/i.test(navigator.userAgent)){ return true; }else{ return false; }