Just two days after the official launch of the M7, Gionee announced another phone from the same series named M7 Power at the Thailand Mobile Expo 2017. It has a massive 5,000 mAh power cell, but is otherwise less powerful than the Gionee M7. The Gionee M7 Power has a Snapdragon 435 SoC with octa-core 1.4 GHz processor. It is paired with 4 GB RAM and 64 GB storage, and there is a microSD slot for expanding it by up to 256 GB. You do get dual SIM support but one of the slots is a hybrid one so you get either a second line or memory expansion, but not both. Gionee M7...
Source: http://www.gsmarena.com/gionee_unveils_m7_power-news-27492.php
