Battery Life

Battery life of a device is dictated by the SoC efficiency, screen efficiency and battery capacity. The Mi9 has an efficient SoC, and it should have an adequately efficient screen, however its battery capacity of 3300mAh is on the lower side compared to competitor devices this year, which are found to sport 3700-4000+ mAh units.

Web Browsing Battery Life 2016 (WiFi)

In the web-browsing test, the Mi9 ends up as expected on the lower half of our device database of recent flagships. The phone lands near where the G8 landed.

PCMark Work 2.0 - Battery Life

Similarly, in PCMark, the Mi9 ends up quite average in terms of its longevity. It’s not bad at all, but still remains as the lowest longevity of S855 devices, just a hair worse than the 90Hz mode of the OnePlus 7 Pro.

Overall while the Mi9 certainly doesn’t compete in battery to the likes of the Galaxy S10+, it should offer sufficient longevity to get most users through the day.

Display Measurement Camera - Daylight Evaluation
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  • CityBlue - Sunday, September 15, 2019 - link

    "The contents of this article are entirely independent and solely reflect the editorial opinion of AnandTech."

    Could Anandtech include a similar disclaimer when posting any Intel-related content? Because based on articles over the last few months (or rather, articles that haven't appeared *cough* Zombieload and other security issues *cough*) it does appear that Intel has editorial control over Anandtech articles. And yes Dr Ian, security is bl**dy important to your readership!

    It shouldn't be a problem including such a disclaimer if Anandtech is 100% independent, because any such claim would be highly dubious at best.
  • hanselltc - Friday, September 13, 2019 - link

    I am pretty sure you labelled the P30 P30 images wrong Andrei.
  • Andrei Frumusanu - Friday, September 13, 2019 - link

    Thanks, I fixed the night shots.
  • Despoiler - Friday, September 13, 2019 - link

    I just bought one of these the other week. I was looking at a One Plus 7, but there are so many of the same phone platform made by different companies. I think Xiaomi has the best spec of all the different phones that look like they are build off the same reference design. It's also the cheapest of all of them.

    The Mi 9 is great given you do two things. 1) Install a different launcher. Apple like app icons across many screens is terrible. App drawer please. I'm using Evie, but really anything is better than stock. 2) Install a Google Camera port like Arnova8G2. The stock camera has a tendency to produce softer pictures than Google's camera. Also Google Night Sight is a better implementation.
  • s.yu - Saturday, September 14, 2019 - link

    All default cameras are worse than Gcam by most measures.
  • eastcoast_pete - Friday, September 13, 2019 - link

    Hi Andrei: did you have a chance to also evaluate the video capabilities of the Mi9? I appreciate the details on the still photography, but wonder how the strengths and weaknesses there impact video. If you have the data, would love to see them - Thanks!
  • Andrei Frumusanu - Friday, September 13, 2019 - link

    I didn't have time for it today, I'll update it in next few days. The lack of OIS isn't very good for video.
  • NXTwoThou - Friday, September 13, 2019 - link

    The EIS for the Mi9 is shockingly good. Unfortunately it only works at 30fps.
  • Redmyth79 - Saturday, September 14, 2019 - link

    True but for your info no current flagship has OIS or any stabilization at 4k@60fps. So it's not just the Mi 9
  • Redmyth79 - Friday, September 13, 2019 - link

    Read this info on the EIS, it's actually a advanced version of OIS
    https://www.gizchina.com/2019/02/17/mi-9-closed-lo...

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