Does the iPhone 13 Pro have the longest battery in any iPhone?

yes, The new capacity is 4,352mAh, an increase of 18% over the previous model. Apple claims that this will give you an extra 2.5 hours of use, albeit their usage patterns are unlikely to be the same as yours.

• Finally, the iPhone 13 Pro Max should be the iPhone with the longest battery life.
• With a 20-watt power supply and a Lightning to USB-C connector, you can charge an iPhone 13 from zero to 50% in approximately half an hour, and fully charge it in about two hours.
• The iPhone 13 Pro Max was capable of looping our test sample for 24 hours while offline, which is 9 hours longer than the 12 Pro Max and 6 hours longer than the S21 Ultra.

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