The Xiamoi Mi Max series is known to portrait a bigger picture of battery and display. According to the internet rumor, the Mix Max 3 would feature a big 7-inch display with minimalistic bezels 18:9 panel. The Xiaomi Mi Max previous series phablet phones were Mi Max 1 and Mi Max 2 both had the 6.44-inch display.
Also, the rumored reported that the taller Xiaomi Mi Max 3 upgraded in other specs too such as the battery. The battery in Mi Max 3 might be 5500 mAh which is bigger than the Mi Max 2’s 5300mAh battery. To charge this huge battery the Quick charge 3.0 with reverse charging capabilities might be there too.
Furthermore, the phablet can also be seen in the setup of the dual camera on the rear side and if you talk about the SoC, two variants will be there one with Qualcomm Snapdragon 630, while premium one might be powered by the Qualcomm Snapdragon 660.