The Asus Zenfone 3 Max houses Android 6.0.1 Marshmallow with Asus’s ZenUI 3.0. The software feels smooth and polished. Although, it is plagued by many unwanted features and applications. The device consists of a dual-SIM card slot with support for 4G LTE along with VoLTE. Other connectivity options include Bluetooth v4.1, microUSB v2.0, and Wi-Fi a/b/g/n. The USP of the device is its large 4,100 mAh battery. Sure, the battery takes more time to charge, but it also provides with exceptional battery backup. Visit this link
to explore more devices from Asus with 4G capability.