Xiaomi Mi 11 vs Mi 11 Ultra / S21 Ultra / OnePlus 9 Pro / Oppo Find X3 Pro Battery Life DRAIN Test!

[WQHD+ & 120Hz] How much longer does the 5000mAh Mi 11 Ultra last compared to the standard 4600mAh Mi 11? And can it keep up with it's greatest rival, the S2...