Battery Life - A Magnitude Shift

By now many will have heard positive things about the new iPhone 11s' battery life. As we have covered in the introduction, possibly the biggest changes to Apple’s line-up this year is the device’s vastly increased battery capacities. The Pro models in particular have seen significant increases: the 11 Pro gets a 3046mAh battery which represents a 14.5% increase compared to the XS, and the 11 Pro Max gets a 3969mAh battery which represents a very large 25% increase. The Pro Max is now the first Apple device which has a battery capacity comparable to Android phones out there, some of which have offered similar large capacities for a few years now.


iPhone XS Max vs. iPhone 11 Pro Max Batteries (Image Courtesy iFixit)

The regular iPhone 11 sees only a 5.7% bump to up to 3110mAh, which isn’t all that big upgrade compared to the XR. But it also doesn’t increase its weight nearly as much as the Pro models.

Web Browsing Battery Life 2016 (WiFi)

The battery results in our web test are outstanding. Apple in this generation has gone from being average in battery life to showcasing some of the best results we’ve seen in the market.

What is very interesting here is how our absolute test runtimes end up compared to Apple’s marketing claims. Apple has promised +1H, +4H and +5H of battery life for the 11, 11 Pro and the 11 Pro Max compared to their predecessors, and what we measured is 1.08H, 3.9H and 5.27H, which is pretty damn near Apple’s promoted figures, pointing out to some very similar testing conditions between our test and Apple’s internal metrics.

If we break this down a bit and theorize a bit, if we take the XS Max 10.31H result, multiply by 1.25x for the increased battery capacity (12.88H), multiply again naively by 1.15x for the more efficient screen (14.82H), we’re left with a ~5% margin which would account for the more efficient SoC. Give or take margin of error here or there, the results we’re seeing shouldn’t be all too surprising. The math would also check out for the iPhone 11 without a newer display: 5% increased battery capacity and an on average ~3% more efficient SoC.

There’s not much to say about the new iPhone 11 series' battery life other than it's exemplary. More importantly, Apple has managed to finally catch up and exceed the battery life of the LCD iPhone 8 and Plus models from 2 years ago.

Display Measurement & Power Camera - Daylight Evaluation: Triple Cameras
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  • HammerStrike - Wednesday, October 16, 2019 - link

    FYI, while al other new models are rated IP68, the pro’s are listed as having a maximum submerged depth of 4 meters for 30 minutes, vs 2 for the non-pro model. Your spec comparison on the first page lists them all at 2 meters. Reply
  • colonelclaw - Wednesday, October 16, 2019 - link

    I think my perfect phone right now would be all of the 11 Pro's hardware shoved into the body the size of the iPhone 5, but obviously with the full-front screen. Unfortunately there doesn't appear to be much will amongst any of the premium phone manufacturers in wanting stuff to be smaller these days :(
    iPhone 11 Pro Nano anyone?
    Reply
  • p1esk - Wednesday, October 16, 2019 - link

    Yes, I’d love a smaller iPhone. Reply
  • nirolf - Thursday, October 17, 2019 - link

    Smaller and lighter! I'm holding on to my 7 until they release something similar in size. Reply
  • Eliadbu - Wednesday, October 16, 2019 - link

    no iphone 11 pro but *rumors* say there is new Iphone SE2 for 399$ with a13 and 3GB of ram
    but I doubt it will be full front screen or AMOLED screen. but imo it will sell like hot buns from the oven. there is huge market for budget phone and a new iphone SE with same SOC as flagship, plenty of ram and IOS for 399$ is really compelling I know many people just lurk for used\old gen Iphones just so they can get Iphone for low price, this phone will draw the masses.
    Reply
  • MamiyaOtaru - Friday, October 18, 2019 - link

    unfortunately the rumors seem to paint Apple as being more interested in the price aspect than the size aspect. Like it will be more modern innards in an iphone 8 body. Which misses a great deal about what I liked in the original SE. Reply
  • Eliadbu - Saturday, October 19, 2019 - link

    I see your point, but you need to understand the current market. Iphone sales and other premium flagship are declining while budget phones are on the rise especially in certain markets where most people can't afford expensive phone so they look for the best phone they can get at the budget lineup. Now there are cheaper options than 399$ but arguably no better options. Apple knows it loses huge market share by not creating option for that price point. Also if they put a13 in that phone it will be overkill. They should either use older chips that cost less now like the a12 or a11 which both are more than enough for budget phones, or they can use smaller more power efficient a13 that would cost less and put the money on newer display design or more cameras which will be better selling point than using a13, imo. Reply
  • Srkifs2021 - Tuesday, November 3, 2020 - link

    Guess you got it now with the 12 and mini! Reply
  • Oyster - Wednesday, October 16, 2019 - link

    I believe it's time for AT to really upgrade its website to be able to make use of the full width of modern displays. It's excruciating to go through these reviews and click through each camera sample without being able to compare things side-by-side. Even the performance graphs are so cramped. I hope an upgrade is on the way... Reply
  • Raqia - Wednesday, October 16, 2019 - link

    "Nevertheless, I do question why Apple decided to be so aggressive in terms of power this generation."

    I imagine it has something to do with the much bigger battery they put into the phone; current draw wearing down the battery isn't as much of a concern when it is larger. The little cores are far more impressive this year with roughly A73-75 levels of performance at much better efficiency. They seemed to have listened to users by making the phone a bit chunkier in exchange for a bigger battery.

    The inefficient modem is still a sore spot this year which should hopefully be addressed next year with the inclusion of Qualcomm parts and IP. More importantly, the impact of a closed ecosystem with management who care more about profit than users is being felt by real customers in places like Hong Kong or vendors like EPIC who have avenues other than the official OS vendor sponsored app store on Android. Regulators should force Apple to offer an open store API for third parties to set up store fronts so that customers could have more choice based on pricing, quality, and reputation.
    Reply

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