Battery Life - Impressive

Battery life is a fundamental characteristic of a smartphone, and something that Huawei seems to want to pay special attention to due to the CEO’s obsession with being personally fed up with smartphones running out of power.

The P20 comes with a 3400mAh battery while the P20 Pro sports a 17.6% larger 4000mAh unit. Both represent an improvement in terms of capacity when compared to the P10 (3200mAh) and the P10 Plus (3750mAh).

Web Browsing Battery Life 2016 (WiFi)

In the web browsing test both P20’s perform extremely well, topping the charts. While not quite reaching the Mate 9’s figures (due to its very efficient LCD), the P20 Pro outpaces all other modern smartphones that we’ve tested, coming in at 12.20 hours. The P20 also isn’t far behind at 10.66 hours.

PCMark Work 2.0 - Battery Life

In PCMark, the P20 Pro showcased some record figures coming in at 12.3h, beating all previous flagship devices. The smaller P20 also fares very well – but the LCD screen is holding back the device as PCMark’s overall lower APL seems to favour the P20 Pro’s OLED display a lot.

This is also an interesting juxtaposition between the P20 Pro and say, the Galaxy S9+ with the Snapdragon 845. Both have similar AMOLED screens and sizes, but the P20 Pro comes in at a 51% longer runtime, even though its battery capacity is only 14% bigger.

Compared to last year’s P10 – both P20’s mark significant improvements.

In general this perfectly showcases the balance that companies have to make when deciding between performance and battery life. Although the Kirin 970’s isn’t the greatest performer in 2018, it’s able to remain outstandingly efficient. The fact that the P20’s have larger batteries while maintaining slim form factors is just a bonus on top what is fundamentally a requirement of having an efficient SoC and device platform.

Over my time with testing the device I did notice a catch in the battery life of the P20s – both seem to have less than impressive idle standby times, however given the overall outstanding on-screen battery results, this should be of no particular concern to everyday users.

Display Evaluation & Power Camera - Daylight Evaluation


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  • Belldandy - Saturday, June 16, 2018 - link

    Just an interesting note: I have the Canadian version of the P20 Pro, single sim card.
    running version: CLT-L04
    I got scores of Sling Shot Extreme Unlimited graphics: 3114 Physics: 2821
    But T-Rex was 123fps
    Manhattan 3.1 Off-screen was 39 fps

    So maybe it has been fixed on my phone like the Mate 10 pro
  • arayoflight - Friday, June 15, 2018 - link

    Are you planning to review the OnePlus 6 as well? Reply
  • greenbat - Friday, June 15, 2018 - link

    Great article. I was wondering about the AI benchmark. It would be intersting to see whether the android 8.1 on the p20 give better results compared to the android 8.0 Mate 10. Any change to test that?

    And the next firmware upgrade of the mate 10 gives night shot without tripod, just like p20
  • amouses - Friday, June 15, 2018 - link

    The Huawei P20 Pro is an awesome phone, especially for people whose usage includes predominantly photography. But as a Huawei fanboy or maybe ex fanboy beware. Huawei have a habit of providing poor Software upgrades (security) and OS upgrades for phones. And so my official requests to them about Android P support for a phone ironically named P20 have gone unanswered to date. So Huawei, do you commit to upgrading your flagship phone, say by Dec 31st 2018? or will users as per your previous flagship products be saddled with excellent hardware and totally out of date Android Software. Your call. Reply
  • Trixanity - Friday, June 15, 2018 - link

    Second paragraph in the conclusion "Huawei tried to take some design queues from Apple’s iPhone X" should be design cues I'd wager :)

    Are there any plans to revisit the GPU benchmarks later? Huawei's alleged black magic (which they call GPU Turbo that supposedly has significant improvements to performance and power efficiency) seemingly coming out of thin air will be released to a wide range of models including the P20 in July. Would really like to see not only benchmarks but a dissection of what it is and how it works if possible.
  • South_DL - Friday, June 15, 2018 - link

    These continental Chinese phones are nothing but a mix of plagiarism from both Apple and Samsung, how in earth such a thing can be legal in the US? Reply
  • Retycint - Friday, June 15, 2018 - link

    Because you can't trademark things like a notch or a glass back, that's why. And these phones are much more than just "iPhone/Samsung clones", unless you're telling me you didn't even read the review and skipped straight to the comments section to complain? Reply
  • prisonerX - Friday, June 15, 2018 - link

    You can't copyright, patent or restrict an idea, only a specific instance, expression or design.

    Your notion of "plagiarism" is how people have been designing things forever, and it benefits consumers. Why someone would be worried about where ideas come from rather than whether they're good or bad, I'll never know.
  • levizx - Saturday, June 16, 2018 - link

    You are plagiarizing, because 1+1=2, and you can't use it EVER. Reply
  • sonny73n - Sunday, June 17, 2018 - link

    You’re such a shallow minded. Go on gsmarena and check the last 4 iPhone generations (6,6s,7 and 8) and Meizu see who stole design from whom. And the bezel-less design of iPhone X is also a steal from another Chinese phone.

    By the way, your beloved Apple trademarked “slide to unlock” and “tap center of status bar to scroll up back to top”. LOL

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