Apple iPhone 13 Pro Max with A15 Bionic vs Xiaomi Mi 11 Ultra vs OnePlus 9 Pro vs iPhone 12 Pro Max vs Samsung Galaxy S21 Ultra Exynos 2100 - BATTERY DRAIN TEST! Which Smartphone has the Best Battery LIFE?

The iPhone 13 Pro Max Battery Drain Test comes with a 4352mAh Battery and has 120Hz Refresh rate, let's see how it performs against other Flagships.

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