Unfortunately, this is one of the areas where the Oppo is at its weakest. While the R15 Pro will get you through a day's usage fairly comfortably, it will be left with very little in the tank by evening and just won't cut it on those mornings you forget to leave your phone charging overnight.
It's clear that the gorgeous display takes its toll on the 3,430mAh battery, and it's likely that other missed optimisations are to blame here as well.
view publisher site: https://phatlocmobile.vn/thay-man-hinh-oppo-r15
From our benchmark results, it seems that the R15 Pro scored lower than almost every handset we've reviewed in the last two years, performing equally as poorly as the HTC U12.

All in all, the Oppo R15 Pro's camera is a winner. It takes winning photos in natural light. Switch the HDR (High Dynamic Range) option on the rear-facing dual lens camera and you will be amazed by what you’ve just captured.
check these guys out: https://phatlocmobile.vn/thay-kinh-cam-ung-oppo-r15
Our landscape shots blew away last-year’s champion, the Huawei P10 Plus, with truer to life skies, clouds packed with intricate details and reflections in the glass of an adjacent building.

It’s fast, too, with the phone's speedy camera proving responsive to taking shots and video. However, there's a small amount of adjusting to the software in order to emulate tricks like the aperture effect that blurs the background while keeping the foreground in tight focus.
click for more info: https://phatlocmobile.vn/thay-pin-oppo-r15
That’s found under the portrait mode, and in there you’ll find a number of gimmicks to alter the lighting, as well as some fancy augmented reality effects. There’s also the skin-smoothing beauty modes we've come to expect (helpful when you’re feeling a bit dusty), but that can be turned down or off.
The R15 Pro’s selfie prowess is a bit questionable, however, with a slight lack of definition, resulting in images feeling a bit ‘fudgey‘ – that is, unless you have the beauty mode on and the phone half an arm’s length away from your face. Best you stick to the rear lenses.