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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  • MrSpadge - Friday, September 13, 2019 - link

    It's the built-in camera app, called "Kamera" as far as I can tell. However, I had a quick look and can't find any sharpening settings now either, so maybe they've removed that with some update.

    In order to load this .eu rom I'd have to reinstall everything not saved in the google account, right? If so: thanks, I'll keep it in mind for now.
  • Redmyth79 - Friday, September 13, 2019 - link

    LOL, yeah I had it to until the update switched from 10.26 to 10.27 I believe it was
  • Redmyth79 - Friday, September 13, 2019 - link

    I used to have the option on EU ROM to sharpen, Saturation, and contrast but after the 10.26-27 update I lost that ability and truthfully I'm pissed about that. But I still am using stock ROM as I have yet to unlock my boot loader although I can at anytime as I've had it sense may
  • ElFenix - Friday, September 13, 2019 - link

    52 mm lenses are not telephoto! it's just normal! quit calling it telephoto!
  • Redmyth79 - Friday, September 13, 2019 - link

    It has a telephoto equal to S10+, as it's actually a Samsung telephoto lens.
  • ElFenix - Friday, September 13, 2019 - link

    still not telephoto!
  • Redmyth79 - Friday, September 13, 2019 - link

    What ever you say master! It's telephoto in cellphone world!
    It's only a 2x not 3 or 5x optical but 2x the factory wide angle.
  • s.yu - Saturday, September 14, 2019 - link

    It's telephoto if
    1. It's longer than normal, which it is not.
    2. Its physical length is shorter than its focal length, which we don't know of, but is likely true.
  • NXTwoThou - Friday, September 13, 2019 - link

    FYI, the wireless charging is 20W. So you can technically charge wirelessly faster than you can with the (global)included charger. China version came with the 27W charger and bought the 20W pad(and 20W car wireless auto grippy one) to go along with it.
  • Awful - Friday, September 13, 2019 - link

    It's a shame it wasn't the Mi 9T/Pro - as it really is a newer iteration on the Mi 9 - pretty much everything's improved from what I can tell. I've had mine for a few months now and the value is through the roof for what you get.

    Also noteworthy is just how easy/good GCam is on these - you can just download the APK and go (camera2 API already enabled so no messing round). It's nightmode and HDR+ fill in a lot of the weaknesses of the Xiaomi's camera app nicely.

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