What's the difference between z2 and z3?

The dial of genius z2 is about 53.4mm (length) *4 1mm (width) * 14.2mm (thickness) and weighs about 45 grams. The dial size of the little genius Z8 is about 53.4mm (length) *4 1mm (width) * 14.8mm (thickness) and weighs about 55 grams.

2. Battery capacity

The battery capacity of genius z2 is 500 mA, it takes 1.5 hours to fully charge, and the theoretical standby time is 90 hours. The battery capacity of genius z3 is 460 mA, it takes 45 minutes to fully charge, and the theoretical standby time is 48-72 hours.

3. Network standards

Genius Z2 supports China Mobile's 26 and 4c networks, and can also support China Unicom's 2c networks, but does not support China telecom users, so it can connect with WIFI. Little genius z8 supports all network standards of mobile, China Unicom and telecom (except mobile 3G and telecom 3c), and even if it is used abroad, there will be no obstacles to surfing the Internet.