Camera sample pictures:
3G: WCDMA 850/900/1900/2100
2G: GSM 850/900/1800/1900
GeekBench 3 Battery Test:
I did a geekbench 3 battery test but to be honest, I don't trust this test anymore, that is why I didn't mention it. MiUi 7 seems to be a lot more energy efficent than MiUi 6 but it won't show in THIS benchmark http://browser.primatelabs.com/battery3/102082
Update: Second test, this time with "dim screen" OFF and a screen brightness of 50%:
Edit: Slow-Motion video recording IS working but only up to an HD resolution. MY BAD!! Sorry for that!