Apple iPhone 8 goes through our battery life test: encouraging result


Our Apple iPhone 8 review is out and in it you can find our detailed impressions with the new iPhone, but one thing we want to highlight here is the iPhone 8 battery life.

After all, we already know that the iPhone 8 has a smaller battery than the iPhone 7: 

This is a 7% decline in battery capacity that Apple has to somehow make up for.

So how did it do and does the iPhone 8 last as much as the iPhone 7 in real life?

First, let's make one thing clear: the new iPhone 8 ships with the Apple A11 Bionic chip, which is now built on a more efficient, 10nm process that allows the chip to consume less energy while delivering the same or even higher performance. Also, the iPhone 8 has a glass back and supports wireless charging, both factors for the smaller battery size.

Before sharing our real-world experience with the iPhone 8, we had to run our battery test. This is a synthetic test that tests typical performance of a phone, with the screen set at 200 nits of brightness, a level comfortable for indoor use. Interestingly enough, even with its smaller battery, the iPhone 8 actually outscored the iPhone 7: it got 8 hours and 37 minutes on our test, while the iPhone 7 scored 7 hours and 46 minutes. Here is how this results compares to other phones out there.

Battery life(hours)Higher is better
Apple iPhone 88h 37 min(Good)
Apple iPhone 77h 46 min(Average)
Samsung Galaxy S88h 22 min(Average)
LG G66h 9 min(Poor)
Apple iPhone 6s8h 15 min(Average)
Samsung Galaxy Note87h 50 min(Average)
LG V309h 34 min(Good)
HTC U119h 3 min(Good)
Google Pixel7h 45 min(Average)

Our test shows that the iPhone 8 also outdoes many Android phones in terms of battery life: with the HTC U11 being the clear exception and the top-ranking flagship phone for battery life at the moment.

And in real life, the iPhone 8 will last a full day, but not much more than that and we've noticed that stand-by time is excellent.

There is one more aspect to the battery experience on a phone and that is how long it takes to charge it. The iPhone 8 supports fast charging, but it does not ship with a fast charger in the box. That is a bummer for an already expensive phone. Using the stock charger, you still get depressingly slow charging speeds. Here are the results:

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Full Charge(hours)Lower is better
Apple iPhone 82h 28 min
Apple iPhone 72h 21 min
Samsung Galaxy S81h 40 min
LG G61h 37 min
Apple iPhone 6s2h 30 min
Samsung Galaxy Note81h 42 min
LG V301h 48 min
HTC U111h 38 min
Google Pixel1h 59 min

We will test wireless charging times and fast charging the iPhone 8 in the near future and we will update this post as those results become available.

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