Software
Xiaomi has launched the Mi Mix 2 with MIUI 9 based on Android 7 Nougat which is better than MIUI 8 based on Android 6.0 Marshmallow in Mi Mix. The MIUI 8 has features like dual apps and dual spaces so it is expected that the new UI may offer much improved features.
Battery
The Mi Mix 2 comes with a 3400mAh battery which is smaller as compared to Mi Mix that has a 4400mAh battery to fuel it up. However, both the phones have the Quick Charge 3.0 that promises to increase the charging speed by 20%.
The interesting bit out here is that as this phone uses a more efficient processor and a smaller screen coupled with a newer version of Android with some battery enhancements, the end result could be the same.
