JS 通过宽高判断iphone机型

function isIphonX() {

// iPhone X、iPhone XS

var isIPhoneX = /iphone/gi.test(window.navigator.userAgent) && window.devicePixelRatio && window.devicePixelRatio === 3 && window.screen.width === 375 && window.screen.height === 812;

// iPhone XS Max

var isIPhoneXSMax = /iphone/gi.test(window.navigator.userAgent) && window.devicePixelRatio && window.devicePixelRatio === 3 && window.screen.width === 414 && window.screen.height === 896;

// iPhone XR

var isIPhoneXR = /iphone/gi.test(window.navigator.userAgent) && window.devicePixelRatio && window.devicePixelRatio === 2 && window.screen.width === 414 && window.screen.height === 896;

return isIPhoneX || isIPhoneXR || isIPhoneXSMax

}

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原文：https://blog.csdn.net/qiphon3650/article/details/90405327