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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  • BradleyTwo - Monday, October 21, 2019 - link

    My apologies if this has been disclosed already, but would it be possible to ask if Apple supplied these phones for testing?

    The reason I ask is that there is quite a long thread over at a popular Mac rumors forum where a number of us are concerned at the variable screen quality on the iPhone 11 Pro and Pro Max.

    Many of us, myself included, have received a suboptimal screen, in that it was a dim, murky yellow display (the less polite of us have called them p-stained), while others have received screens which are not uniformly lit.

    We have generally exchanged them to receive marginally better units, a few of which have been perfect, but a disappointing majority of the exchanges are often still below the apparently impressive characteristics of the displays discussed in the review.

    As this is not mentioned in the various iPhone 11 Pro reviews, a number of us have formed suspicions that Apple has cherry picked the best screens to supply to reviewers.

    A clarification whether Apple did indeed supply the units, or if they were bought off the shelf, would be much appreciated.
  • techsorz - Monday, October 21, 2019 - link

    Apple calibrates each device, this is what XDR essentially is. However this will create better uniformity across displays than make them as different as you say.

    Dim, murky yellow is probably caused by you not disabling true-tone and auto-brightness. Otherwhise you have a very faulty unit, as this display should be bright enough to nearly burn out your retina. (Exaggeration)

    Not uniformly lit could be an error, just return it in this case. Clearly Apple wouldn't supply faulty hardware to anyone on purpose, not testers or consumers.
  • Andrei Frumusanu - Monday, October 21, 2019 - link

    These are Apple review samples, but in our experience and testing they don't differ from commercial models.
  • BradleyTwo - Monday, October 21, 2019 - link

    Thank you for the clarification. It would of course be negligent for Apple PR not to ensure reviewers receive fully tested units.

    I can assure you, however, that when it comes to the screen, the number of less than optimal units being sold at retail is probably higher than you might think. While these are most likely all within manufacturing tolerances for QC purposes, some of them I highly doubt Apple would send to reviewers.

    Oh well, at least the 14 day return period provides the opportunity to exchange. The "screen lottery" we call it.
  • Andrei Frumusanu - Tuesday, October 22, 2019 - link

    Apple would have to be very misleading in providing fully sealed units. It's possible that some retail units perform worse but over the years we've never really encountered such a unit.
  • s.yu - Tuesday, October 22, 2019 - link

    "It would of course be negligent for Apple PR not to ensure reviewers receive fully tested units."
    lol! Samsung Fold.
  • joms_us - Tuesday, October 22, 2019 - link

    It is pity though the so-called fastest SoC is not even close to these Android phones which are typically half the speed of fastest desktops. How do you expect people to believe A13 is faster than i-9900K or Ryzen 3950X? Where GeekBiased and jurassic SP2006? LOL

    https://youtu.be/ay9V5Ec8eiY?t=514

    https://youtu.be/DtSgdrKztGk?t=423

    https://youtu.be/PkVW5eSXKfw?t=115

    I'd say cut the crap and show us real-world results not cherry-picked worthless numbers from benchmarking tools.
  • Quantumz0d - Tuesday, October 22, 2019 - link

    The fanboys man they are so blinded by reality, Apple was able to set a perfect world utopian dream for them. Can't fix stupid.

    I used to run Sultanxda kernel on my OP3 with SD820 processor the SD821 had higher clock speed over 820 but guess what OP screwed it up or Qualcomm didn't provide fix there was Clockspeed crashing at high freq so he disabled it entirely on both big and small. Guess what ? Benches took a massive hit. But UX ? Nope. Infact it improved a lot how is that possible ? I guess Spec and GB only matters right.

    Pixel 3 lagged badly due to the RAM issue no one mentions all say its beautiful wonderful amazing. Guess what ? 1080P 60FPS doesn't exist as an option and its auto as Google deems. 4XL no 4K60FPS because less storage. No press mentions.

    Coming to this garbage phone. iOS 13 whatever. Same icons, same springboard since 1.1.4 (I used it and JBed it) no desktop no customization to OS. All iPhones on the planet look same just like the brainwash here of ridiculous comparision of a GB (bullshit bench) and Spec score. Masterpiece of corporate koolaid.

    Why don't they mention how the Audio format which records is not in Lossless but in AAC crap unlike my V30 does with the 192KHz 24Bit option in FLAC with Limiter and Gain switch or the Video mode which had full manual Pro controls or even the camera having any Manual options. All ASUS, Samsung, LG, Sony, OnePlus, Huawei offer Pro camera forget Pro Video which only LG and Sony do. But No one cares, simpletons only care about A series marketing BS.

    The worst of all no Filesystem. $1000 device which doesn't even have a Filsystem usable by end user or has an option to install the apps off the AppStore. Nor any SD expansion slot to be prepared for emergency. But people are riling up and getting worked over the ARM masterrace LMAO with BGA MacBook Pro with 1 USB C port. Bonus is, to develop iOS app you must pay $99 yearly fee AND own that BGA Soldered KB/Touchpad/Battery/SSD macbook because XCode !!

    The abomination design. Display mutilation for 3 years while heralding best colors best display LOL. Very funny.

    And no 3.5mm jack. Because Apple wanted to make $5bn off revenue from AirPods (Higher than AMDs entire profit) guess what ? Less than 320kbps data rate LMAO. My LG V30 absolutely destroys this phone to oblivion with its ESS9218P DAC processor only found in Top motherboards from ASUS/GB/MSI. Even Vivo Nex decimates this garbage audio iPhone.

    Very very funny how even Qualcomm who spent billions of dollars in R&D for their Centriq ARM server processor by even relegating the teams which worked on post 810, full custom Kryo 820 series and dumping all it out because of the Broadcom M&A (Major beneficiary was Apple due to the Hock Tan connection with Apple, he would sell out all LTE patents) impact and no profit in the ARM server market, forget logistics, capex, ROI, x86 emulation AND 64Bit x86 Emulation legacy code with a massive scale of Linux community around.

    But we want ARM A series BGA processor which has world class Spec and GB score and beats Mainstream and HEDT LGA processors.

    Claps !
  • Anand2019 - Tuesday, October 22, 2019 - link

    Why are you so angry?
  • Quantumz0d - Tuesday, October 22, 2019 - link

    Fed up of the unending talk of x86 vs ARM is one hell even AT forums cpu and oc subforum. Whole thread dedicated to worship this talk.

    Two Apple ruined smartphones by this policy of removing jack and features while raising the price to moon, Other companies also want greed by forcing people to buy BT earphones which sound garbage, horrid longevity (Need to charge everyday) pushing people to buy trash (Beats) thus making whole market saturated with Apple agenda. Look at Google Pixel 4 they also removed offering Dongle, Samsung, OnePlus. Same thing like Apple very greedy.

    Three destroyed the laptops with thin and light obsession. And soldered junk with less and less I/O.

    Finally 4th - this corporation is built on American values but is a stooge to cash from China thus enabling more totalitarianship while claiming Liberty on US land. Spineless positiin.

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