Find your iPhone model: Look for the 'A' model number on the back or in the Settings app to determine which iPhone version you have. 'A' model number location: Pre-2017 iPhones have the 'A' number ...

Specifically, the iPhone 7 Plus model may be graced with a 3100 man battery. In contrast, the iPhone 6s Plus battery is 2750 mAh. If this translates into longer battery life, that may be a strong ...