Camera - Low Light Evaluation

Low-light photography of the Mi 11 on paper shouldn’t be exactly a strong-point of the device: Due to the way the main sensor is 2x2 binning to 27MP at the lowest resolution, it means that it effectively has smaller pixels than comparable 12MP shooters, or even the other 1/1.3”-class sensors from Samsung or even Huawei. On top of this, the Mi 11 has a smaller aperture versus the Mi 10 Pro in the optics. Still, the new phone has a newer SoC so maybe there’s some new processing algorithms which could come to play in terms of generationally improving the low-light capabilities of the phone.

Click for full image
[ Mi 11  -  [ Mi 10 Pro  -  ]
[ S21U(S)  - ] [ S21U(E)  - ]
[ S21(E)  - ] [ S20+(E)  - ]
[ Note20U(S)  - ] [ iPhone 12 Pro  -  ]
[ Mate40 Pro  -  ] [ Pixel 5  -  ]
[ X-T30 ( ) ]

In the first scene here, we see a very different result when looking at the Mi 11 compared to the Mi 10 Pro, and it’s actually not a positive one. The Mi 11 regresses in terms of dynamic range, posting brighter highlights (than they should be) and darker shadows with less detail. The EXIF says the Mi 11 had a twice as long exposure – though the loss of detail in the shadows points out that the night mode processing is very different.

Although the Mi 11 has strong natural detail retention, the competition just does better in terms of bringing out details in the darkness.

The ultra-wide’s night mode hardly makes any difference on the Mi 11 which is a bit weird, as the Mi 10’s was quite adequate.

Click for full image
[ Mi 11 - [ Mi 10 Pro - ]
[ S21U(S) - ] [ S21U(E) - ]
[ S21(E) - ] [ S20+(E) - ]
[ Note20U(S) - ] [ iPhone 12 Pro - ]
[ Mate40 Pro - ] [ Pixel 5 - ]
[ X-T30 ( ) ]

In terms of colour temperature, the Mi 11 was quite off in terms of the magenta hue. Where’s still reasonable amount of even light, the Mi 11 again does really well with details due its higher resolution sensor.

Click for full image
[ Mi 11 - [ Mi 10 Pro - ]
[ S21U(S) - ] [ S21U(E) - ]
[ S21(E) - ] [ S20+(E) - ]
[ Note20U(S) - ] [ iPhone 12 Pro - ]
[ Mate40 Pro - ] [ Pixel 5 - ]
[ X-T30 ( ) ]

Here, although the Mi 11 overdid it in terms of the colour temperature compensation and really isn’t representative of the hue of the sodium vapour lamps, the Mi 11 still somehow manages a very good compositions in the tone curves.

Click for full image
[ Mi 11 - [ Mi 10 Pro - ]
[ S21U(S) - ] [ S21U(E) - ]
[ S21(E) - ] [ S20+(E) - ]
[ Note20U(S) - ] [ iPhone 12 Pro - ]
[ Mate40 Pro - ] [ Pixel 5 - ]
[ X-T30 ( ) ]

In terms of raw dynamic range in night mode, the Mi 11 doesn’t fare as well as some of the competition, however it’s still above average, and it does a much better tone-mapping than the Mi 10, maintaining better mid-tone contrast whereas the predecessor tended to make things very flat.

Click for full image
[ Mi 11 [ Mi 10 Pro ]
[ S21U(S) ] [ S21U(E) ]
[ S21(E) ] [ S20+(E) ]
[ Note20U(S) ] [ iPhone 12 Pro ]
[ Mate40 Pro - ] [ Pixel 5 ]
[ X-T30 ( ) ]

In even more low-light conditions, the Mi 11 does very well in the overall scene. The phone prefers to bring out shadows rather than maintaining highlight details, but that’s generally acceptable for the end-result.

Unfortunately the ultra-wide isn’t really usable here, the Samsung phones and their superior sensor as well as Huawei are well ahead in terms of quality.

Click for full image
[ Mi 11 ] [ Mi 10 Pro ]
[ S21U(S) ] [ S21U(E) ][ S21(E) ] [ S20+(E) ] [ Note20U(S) ]
[ iPhone 12 Pro ] [ Mate40 Pro - ] [ Pixel 5 ]
[ X-T30 ( ) ]

Finally, a scene that I did just for fun was the night sky when in handheld mode. It’s not really a realistic shooting mode, but it does show some of the processing styles of the phones. The Mi 11 has better noise control than the Mi 10 but due to the exposure being twice as long we’re seeing obvious ghosting and mirror images in the stars – either that, or the image stacking algorithm from Xiaomi isn’t quite as strong as the competition.

Low-light verdict: Not the best, but still quite good

The general conclusion for low-light capabilities of the Mi 11 is that it’s a plenty adequate shooter with some strengths as well as some weaknesses. Xiaomi’s processing isn’t quite as strong as Samsung’s, but does better than other vendors bar Huawei. The capabilities of the sensor are still plenty, and in general it’s a competent shooter. On the ultra-wide module however, the sensor really is far too weak, and even night mode cannot save it, producing images that are far too dark and barely usable compared to other high-end competitors.

Camera - HDR Conclusion & End Remarks
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  • Silver5urfer - Wednesday, March 10, 2021 - link

    No NA market, no 3.5mm jack, no SD slot no buy. On top does Xiaomi phones are easy to unlock Bootloaders ?
  • heffeque - Wednesday, March 10, 2021 - link

    Well for the rest of the world the fact that it's not available in the US is not a problem.
    Seeing what happened with Huawei, it seems that Xiaomi's decision to not sell in the US was spot-on.
    The rest of the world can enjoy their great "quality:price" ratio phones.
    Happy "Mi 9T" user here!
  • Fulljack - Thursday, March 11, 2021 - link

    I use Mi 9T Pro, it's bootloader unlocking process are very easy but you need to wait for 36 to 72 hours. there's a lot of tutorial online.
  • Y250 - Wednesday, March 10, 2021 - link

    Unfortunately this thermal throttling behavior is something that I have also experienced in my xiaomi redmi note 7. Although it was launched as a budget device, it thermal throttled pretty frequently in games, especially in summers. It seems like this is how xiaomi configures their devices. Lesson learnt for future purchases.
  • Duncan Macdonald - Wednesday, March 10, 2021 - link

    A high power SOC in a phone demands better cooling - about the only way to achieve this is for the back to be metal (aluminium or magnesium) with a good thermal connection between the SOC and the back. Plastic or glass backs can not spread the heat effectively enough to allow a SOC such as the 888 to sustain full performance.
    The 888 would probably do much better in a tablet that can afford to have better cooling.
    Given the peak temperatures mentioned, the lithium ion battery could easily be overheated leading to short battery life.
  • iphonebestgamephone - Thursday, March 11, 2021 - link

    Its already doing better in the rog 5, though the temp is similar to mi11, the fps is higher.
  • Psyside - Wednesday, March 10, 2021 - link

    @Andrei, Its so frustrating to see that you still haven't received any updates on the S21U, i was so pumped to see how they stack up :/
  • Andrei Frumusanu - Wednesday, March 10, 2021 - link

    These are the same shots as on the S21 review, I haven't redone them.
  • jaju123 - Thursday, March 11, 2021 - link

    Andrei, is there any chance you'll be running the redmi note 10 pro through the battery tests? I'm wondering how such a low end/midrange device would compare to current flagships. It's currently rather flagship dominated.
  • ElBe - Wednesday, March 10, 2021 - link

    Can the bootloader be unlocked ?

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