Huawei Mate 9 battery life test results are out: beats iPhone 7 Plus, Galaxy S7 Edge and Pixel XL

The Huawei Mate 9 battery life test has finished and the score is out. Does it live up to Huawei's promise of real, 2-day battery life? And can it beat other big phones like the Apple iPhone 7 Plus, Samsung's Galaxy S7 Edge and the Google Pixel XL?

The answer is a resounding 'yes'.

The Huawei Mate 9 scored a nearly 50% better battery life results than the competition and it beat the iPhone 7 Plus by offering a third more battery life.

In our custom test where we put the phones through typical use case scenario, the 4,000 mAh battery on the Mate 9 kept the phone running on and on, and then on again. It scores a whopping 12 hours and 14 minutes, while the iPhone 7 Plus (one of the better achievers) scored just 9 hours and 5 minutes and the Samsung Galaxy S7 Edge got 7 hours and 18 minutes, nearly half the battery life of the Mate 9.

Luckily, this coincides with excellent stand-by time and we are indeed getting two days of battery life with the Mate 9, which definitely feels freeing. You no longer need to charge your phone every night, and that's good not just because it keeps you from thinking about one more device to charge, but because you put fewer cycles on the battery and it will last you more in the long run. Excellent job, Huawei!

Battery life (hours) Higher is better
Huawei Mate 9 12h 14 min (Excellent)
Apple iPhone 7 Plus 9h 5 min (Excellent)
Google Pixel XL 7h 19 min (Good)
OnePlus 3T 5h 41 min (Average)
LG V20 6h 23 min (Average)
Samsung Galaxy S7 edge 7h 18 min (Good)

When it comes to re-charge times, the Huawei Mate 9 has quite the large battery to replenish, and it took it 2 hours and 24 minutes to get the 4,000 mAh cell from 0 to 100% using the stock wall charger. While not fast by any means, this charge rate is still faster than the one on the iPhone 7 Plus, which took an even longer 3 hours and 17 minutes to accomplish the same task.

Admittedly, other phones with quick charging are much faster getting juiced up: the Galaxy S7 Edge does this exercise in just 1 hour and 40 minutes, while the OnePlust 3T takes just an hour and 25 minutes to get its battery fully charged with Dash Charge technology.

Charging time (minutes) Lower is better
Huawei Mate 9 144
Apple iPhone 7 Plus 197
Google Pixel XL 118
OnePlus 3T 85
LG V20 86
Samsung Galaxy S7 edge 99
Huawei Mate 8 156

Nonetheless, if you are looking for a reliable and powerful phone with a great battery life, the Huawei Mate 9 certainly delivers. It's also one of the first high-end Huawei phones that you can officially buy in the United States. Currently, the Mate 9 is on sale at Amazon for a very alluring full retail price of $600, compared to $770 for similar iPhone 7 Plus or Google Pixel XL.

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Related phones

Mate 9
  • Display 5.9" 1080 x 1920 pixels
  • Camera 12 MP / 8 MP front
  • Processor HiSilicon Kirin, Octa-core, 2400 MHz
  • Storage 64 GB + microSDXC
  • Battery 4000 mAh



1. UglyFrank

Posts: 2194; Member since: Jan 23, 2014

It's probably in the same class as the Exynos S7 Edge which you don't acknowledge

2. Settings

Posts: 2943; Member since: Jul 02, 2014

No its not. Mate 9 beats S7 in all departments.

3. twens

Posts: 1184; Member since: Feb 25, 2012

Nice job Huawei. I easily get a little above a day with my exynos s7 edge tho.

11. sachouba

Posts: 267; Member since: Jun 08, 2014

Oh, really? I guess the Mate 9 has a better display and a better camera than the S7 Edge, then.

20. Tsepz_GP

Posts: 1177; Member since: Apr 12, 2012

Lol, no, it does not :) and the above S7 Edge is a Snapdragon which is sold in select countries and not the much more widely available Exynos. The mate 9 falls behind the S7 Edge in Camera, Display, VR, ingress protection and many many other areas. The mate 9 is a nice phone,but it's no Samsung.

31. jeroome86

Posts: 2314; Member since: Apr 12, 2012

Look at that finger print scanner. In the middle. Uh. Samsung, take notice.

34. Settings

Posts: 2943; Member since: Jul 02, 2014

Ikr! Samsung is innovative backwards, in the fps sense.

37. yalokiy

Posts: 1113; Member since: Aug 01, 2016

S7 or S7 edge? Mate 9 is much bigger.. Yet, it beats them only in battery life and CPU performance. Mate 9 loses in GPU, Camera, Display, water resistance, wireless payments and VR.

15. Tyrion_Lannister unregistered

The exynos version, yes.

35. Arch_Fiend

Posts: 3951; Member since: Oct 03, 2015

Nah, anandtech doesn't have the E8890 version present in the Mate 9 review, but in the S7 review you can see the Mate 8 actually has better battery life than the E8890 S7E and in the Mate 9 review it clearly has better battery life than the Mate 8. S7 review Mate 9 review

4. vuyonc

Posts: 1091; Member since: Feb 24, 2014

*waits for GSM Arena results*


Posts: 1168; Member since: Oct 05, 2015

They rated it pretty good, but the Mate 8 with the same battery has a better battery life. Mate 8 scored 103 hours, while Mate 9 scored 82. I think the ever increasing GPU power or the perhaps the unfamiliarity with the A73 have caused losses in efficiency. Is this a foreboding of the difference in real life efficiency between early A72 and A73 designs? Perhaps the 835 won't save as much power as we predict, and the more mature 821 cores and the 14nmLPP lithography will help bridge the theoretical gap? We shall see...

26. vuyonc

Posts: 1091; Member since: Feb 24, 2014

Derp, totally forgot GSM Arena results came out long ago (I saw the Anandtech review which was fairly new and brain farted). Yeah the apparent efficiency of the Kirin 960 on GSM Arena was slightly underwhelming. The Anandtech review gave mixed results too with improved web browsing battery life but it lost badly in gaming battery life against smaller QHD phones.


Posts: 1168; Member since: Oct 05, 2015

It's pretty obvious, the Kirin SoCs are good for efficiency. Maybe a bit weak in the GPU area, but strong in CPU and efficiency

6. hemedans

Posts: 761; Member since: Jun 01, 2013

kirin is not efficient compare to exynos or snapdragon, but its better than mediatek. mate 8 manage good score because it has huge battery, just check snapdragon phone with huge battery like lenovo p2, moto g play, etc they have better battery life compare to kirin phones


Posts: 1168; Member since: Oct 05, 2015

The high end Kirin SoCs are pretty efficient. You also forget these phone have very large screens that offset the bigger battery.

7. maple_mak

Posts: 953; Member since: Dec 18, 2013

GPU from Kirin 960 now is much powerful than predessor now.

8. maple_mak

Posts: 953; Member since: Dec 18, 2013


9. torr310

Posts: 1705; Member since: Oct 27, 2011

Tempted to get one!

10. mikehunta727 unregistered

Best battery life Mate, best SoC A10 atm

13. sachouba

Posts: 267; Member since: Jun 08, 2014

Judging from how preposterous your results always are, I will take this piece of information with a pinch of salt.

16. saiki4116

Posts: 413; Member since: Mar 31, 2011

Test Lenovo P2, get ready to blown away

18. drifter77

Posts: 402; Member since: Jun 12, 2015

Yup.. I got nearly 20 hrs SoT without gaming.. unreal.

25. Alter

Posts: 232; Member since: Mar 25, 2016

My jaw dropped a little when I read that comment. Then I looked up the phone and it made more sense. Still, that is sensational.

17. jellmoo

Posts: 2660; Member since: Oct 31, 2011

I'm sorry, but I find it hard to believe that it lasts more than twice as long as the OnePlus 3T. Longer? Sure. But fully twice as long? That seems incredibly unlikely.

19. NarutoKage14

Posts: 1348; Member since: Aug 31, 2016

Impressive battery life. Over the weekend I started playing Grandia on my Pixel XL with ePSXe and over 2 days I got 9 hours SOT by the time it hit 15%.


Posts: 1168; Member since: Oct 05, 2015

Mobile emulators are much better with battery than the dedicated mobile games are. A SNES game ran on an emulator uses very little power, whereas something that polls the internet every so often (most mobile games) eats through battery. I definitely prefer to play emulated titles. ePSXe, Snes 9x, DraStic, PPSSPP, and My Boy!

21. Joms_US

Posts: 201; Member since: Oct 02, 2016

23. Villla1n

Posts: 1; Member since: Feb 01, 2017

If that is the actual charge time it is a bit disingenuous. 144 minutes. Several tests show that the quick charge technology Huawei implemented will charge the device to 58% in 30 minutes and reach 90% after just over an hour at which point it engages a trickle charge to avoid any chance of over charging the battery. Tesla cars follow a similar charge pattern as well. The way you show the numbers makes the implicit assumption that charging is linear and uniform which is not the case on most phones.

24. Alter

Posts: 232; Member since: Mar 25, 2016

This was expected. I’m impressed with the Mate 9 and maybe, just maybe, it will be my next phone.

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