Xiaomi Mi Mix 2 review

GSMArena team, 23 October 2017.

Display

It should come as no surprise that just like the the original Mi Mix, Xiaomi is centering its PR efforts around the impressive nearly bezel-less display, or Full screen display 2.0, as they refer to it. Rightfully so, since even as the trend becomes more popular, few devices can match the pure visual appeal of Xiaomi's design.

Xiaomi Mi Mix 2 review

Like we mentioned earlier, the screen on the Mi Mix 2 has been moved down ever so slightly compared to its predecessor in order to accommodate what the company is referring to as a "Sound guided speaker design". So, even though there is a more conventional speaker underneath the display this time around, the cunning design only requires a mm or so of extra upper bezel space.

Another thing that contributes nicely to the overall look of the Mi Mix 2 is the 12% smaller bottom chin, compared to the original Mix. Xiaomi achieved this through Chip-On-Film technology. The actual display controller has been shrunk down quite a bit and so has the selfie camera. Frankly, even if it was technically possible, shrinking the bottom bezel further would leave you with a severely less comfortable grip on the phone, so this feels just right.

Xiaomi Mi Mix 2 review

Beyond its nicely rounded and elongated 18:9 silhouette, the actual panel is also impressive in itself. At least in some respects, that is. With a 5.99-inch diagonal and a resolution of 1080 x 2160 pixels, it doesn't really constitute a resolution upgrade over its predecessor. However, swapping the 17:9 aspect ratio for an increasingly popular 18:9 one might prove to be a really significant change in the long run. Judging by the current Android scene, as well as upcoming devices, this 2:1 aspect is quickly becoming standard, which means that appropriate content will follow.

With a pixel density of 403, the Mi Mix 2 is plenty sharp. Contrast is not that great, due to a combination of some light bleed at 0% brightness and only 387 nits at full blast out of the box. It is important to note that this number represents the panel's behaviour with default settings. Xiaomi didn't implement any max auto overburn mode on the Mi Mix 2, but toggling Increased Contrast mode in the Display settings menu does bump up the maximum brightness to a much more respectable 515 nits. The mode increases contrast a bit as well.

Display test 100% brightness
Black, cd/m2 White, cd/m2 Contrast ratio
Huawei Mate 9 0.41 665 1622
Samsung Galaxy S8 Max auto 0 618
Xiaomi Mi Mix 0.45 589 1309
HTC U11 (Max Auto) 0.373 583 1563
Sony Xperia XZ Premium (sRGB) 0.48 576 1200
Sony Xperia XZ Premium 0.463 573 1238
LG G6 max auto 0.277 564 2036
Xiaomi Mi Mix (auto contrast) 0.37 551 1489
Huawei P10 Plus 0.335 547 1633
Xiaomi Mi Mix 2 (Increased Contrast) 0.4 515 1287
HTC U11 0.308 483 1568
LG G6 0.228 468 2053
Meizu Pro 7 Plus 0 453
Samsung Galaxy S8 0 440
Google Pixel XL 0 432
ZTE Nubia Z17 (Max Auto) 0.268 392 1461
ZTE Nubia Z17 0.267 388 1451
Xiaomi Mi Mix 2 0.379 387 1020
Xiaomi Mi Note 2 0.005 341 68200

Viewing angles on the Mix 2 are not great. Color shift starts creeping in at about 30 degrees in any direction. Still, it is not severe and perfectly easy to live with. Sunlight legibility is nothing to phone home about either, although its score is still respectable. In real world terms, the handset remains perfectly usable outdoors. Just don't angle the sun straight at it.

Sunlight contrast ratio

  • Samsung Galaxy S8
    4.768
  • Samsung Galaxy S8+
    4.658
  • Samsung Galaxy S6 edge+
    4.615
  • Motorola Moto Z2 Play
    4.459
  • Oppo R11
    4.454
  • Samsung Galaxy S7 edge
    4.439
  • OnePlus 3
    4.424
  • Samsung Galaxy S7
    4.376
  • HTC One A9
    4.274
  • Samsung Galaxy Note7
    4.247
  • Samsung Galaxy A3
    4.241
  • Nokia 8
    4.239
  • OnePlus 3T
    4.232
  • Google Pixel XL
    4.164
  • ZTE Axon 7
    4.154
  • Samsung Galaxy Note8
    4.148
  • Meizu Pro 7 Plus
    4.147
  • Samsung Galaxy S6 edge
    4.124
  • Samsung Galaxy A7 (2017)
    4.124
  • Samsung Galaxy Note5
    4.09
  • LG V30
    4.022
  • Huawei Nexus 6P
    4.019
  • OnePlus X
    3.983
  • Vivo Xplay5 Elite
    3.983
  • Oppo R7s
    3.964
  • Apple iPhone 7
    3.964
  • Apple iPhone 8 (True Tone)
    3.957
  • Huawei P9 Plus
    3.956
  • Meizu Pro 6 Plus
    3.935
  • Lenovo Moto Z
    3.931
  • Samsung Galaxy A7 (2016)
    3.918
  • OnePlus 5
    3.914
  • Samsung Galaxy C5
    3.911
  • Samsung Galaxy C7
    3.896
  • Samsung Galaxy A5
    3.895
  • Samsung Galaxy J7 outdoor
    3.879
  • Samsung Galaxy J2 outdoor
    3.873
  • Samsung Galaxy A8
    3.859
  • Sony Xperia XZs
    3.818
  • Samsung Galaxy A9 (2016)
    3.817
  • Motorola Moto X (2014)
    3.816
  • Samsung Galaxy J7 (2017)
    3.812
  • Samsung Galaxy A5 (2017)
    3.804
  • Samsung Galaxy J7 (2016) outdoor mode
    3.802
  • Xiaomi Redmi Pro
    3.798
  • LG V20 Max auto
    3.798
  • Sony Xperia XZ
    3.795
  • Samsung Galaxy A5 (2016)
    3.789
  • Apple iPhone 6s
    3.783
  • Meizu Pro 5
    3.781
  • Microsoft Lumia 650
    3.772
  • Xiaomi Mi 6
    3.767
  • Sony Xperia XZ1
    3.765
  • Samsung Galaxy J7 (2016)
    3.756
  • Sony Xperia XZ1 Compact
    3.729
  • Apple iPhone 8 Plus (True Tone)
    3.725
  • Oppo F1 Plus
    3.709
  • Vivo X5Pro
    3.706
  • Samsung Galaxy A3 (2017)
    3.688
  • Apple iPhone SE
    3.681
  • Huawei Mate 9
    3.68
  • Samsung Galaxy A7
    3.679
  • Meizu PRO 6
    3.659
  • BlackBerry Priv
    3.645
  • Sony Xperia XA1 Ultra
    3.597
  • Apple iPhone 7 Plus
    3.588
  • LG G6
    3.556
  • Apple iPhone 6s Plus
    3.53
  • Motorola Moto Z Play
    3.526
  • Samsung Galaxy J3 (2016)
    3.523
  • Samsung Galaxy J3 (2016) outdoor mode
    3.523
  • Acer Jade Primo
    3.521
  • Microsoft Lumia 950
    3.512
  • Oppo R7 Plus
    3.499
  • nubia Z11
    3.466
  • Huawei P10 Plus
    3.456
  • HTC U Ultra
    3.453
  • Samsung Galaxy J7
    3.422
  • Meizu MX5
    3.416
  • LG V20
    3.402
  • Huawei P10
    3.379
  • Samsung Galaxy J5 (2016)
    3.378
  • Oppo R9s
    3.352
  • Honor 8 Pro
    3.341
  • Oppo R7
    3.32
  • Lenovo P2
    3.316
  • Honor 9
    3.289
  • Xiaomi Mi 5s
    3.276
  • Nokia 5
    3.261
  • Nokia 6 (Chinese version)
    3.244
  • Nokia 6 (Global version)
    3.238
  • Samsung Galaxy J2
    3.235
  • Sony Xperia X Performance
    3.234
  • Xiaomi Mi Note 2
    3.228
  • Motorola Moto X Play
    3.222
  • Oppo F3 Plus
    3.218
  • Huawei Mate 9 Pro
    3.206
  • Huawei P9
    3.195
  • Xiaomi Mi Mix 2
    3.19
  • ZTE Nubia Z17
    3.159
  • Lenovo Vibe Shot
    3.113
  • Motorola Moto X Force
    3.105
  • LG Nexus 5X
    3.092
  • HTC U11
    3.089
  • Huawei Mate S
    3.073
  • Microsoft Lumia 640 XL
    3.065
  • Sony Xperia XA1
    3.012
  • Sony Xperia L1
    2.994
  • Huawei P10 Lite
    2.974
  • Samsung Galaxy Note
    2.97
  • Sony Xperia Z1
    2.95
  • Huawei Mate 8
    2.949
  • Xiaomi Redmi 4
    2.92
  • Xiaomi Redmi 3S
    2.913
  • Sony Xperia XA Ultra
    2.906
  • LG G5
    2.905
  • HTC One S
    2.901
  • Xiaomi Redmi 3s Prime
    2.893
  • Xiaomi Mi 5s Plus
    2.884
  • Sony Xperia XZ Premium (sRGB)
    2.877
  • Sony Xperia XZ Premium
    2.877
  • Sony Xperia Z5
    2.876
  • Nokia 3
    2.871
  • Microsoft Lumia 550
    2.851
  • Lenovo Moto M
    2.813
  • Xiaomi Redmi 3 Pro
    2.803
  • Sony Xperia Z5 compact
    2.784
  • Meizu MX6
    2.751
  • LG V10
    2.744
  • Xiaomi Redmi 3
    2.735
  • Xiaomi Redmi Note 4 (S625)
    2.714
  • Meizu M5
    2.71
  • Sony Xperia M5
    2.69
  • Xiaomi Mi A1
    2.689
  • Huawei P9 Lite
    2.679
  • Xiaomi Redmi 4 Prime
    2.679
  • Vivo V3Max
    2.659
  • Xiaomi Mi Mix
    2.658
  • Doogee Mix
    2.642
  • Xiaomi Mi 4i
    2.641
  • Xiaomi Redmi 4a
    2.635
  • Xiaomi Mi 5X (Standard)
    2.616
  • Sony Xperia XA
    2.609
  • Motorola Moto G4 Plus
    2.582
  • Motorola Moto G4 Plus (max auto)
    2.582
  • Meizu M5s
    2.58
  • Xiaomi Mi 4c
    2.574
  • LeEco Le Max 2
    2.567
  • Microsoft Lumia 640
    2.563
  • Asus Zenfone 3 ZE552KL
    2.563
  • Xiaomi Mi Max 2
    2.561
  • Lenovo Moto G4
    2.544
  • Lenovo K6 Note
    2.544
  • Oppo F1
    2.528
  • Sony Xperia Z5 Premium
    2.525
  • Huawei Honor 7 Lite / Honor 5c
    2.506
  • Sony Xperia M4 Aqua
    2.503
  • Oppo F1s
    2.481
  • Motorola Moto G
    2.477
  • Lenovo Vibe K5 Plus
    2.473
  • Huawei G8
    2.471
  • Huawei nova
    2.467
  • Lenovo Vibe K5
    2.459
  • Meizu m3 max
    2.447
  • Xiaomi Mi 5X (Auto)
    2.417
  • HTC 10 evo
    2.407
  • Huawei Honor 7
    2.406
  • Sony Xperia E5
    2.386
  • ZUK Z1 by Lenovo
    2.382
  • HTC 10
    2.378
  • Oppo F3
    2.376
  • vivo V5 Plus
    2.371
  • Meizu m1 note
    2.362
  • Huawei nova plus
    2.329
  • HTC One E9+
    2.305
  • Alcatel One Touch Hero
    2.272
  • Apple iPhone 4S
    2.269
  • Lenovo Vibe K4 Note
    2.254
  • Sony Xperia C5 Ultra
    2.253
  • Xiaomi Redmi Note 3 (MediaTek)
    2.249
  • Sony Xperia C4 Dual
    2.235
  • Xiaomi Mi Note
    2.234
  • Motorola Moto G (2014)
    2.233
  • LG Nexus 5
    2.228
  • Huawei P8
    2.196
  • Meizu M5 Note
    2.189
  • Huawei Honor 6
    2.169
  • Xiaomi Redmi Note 2
    2.166
  • OnePlus Two
    2.165
  • HTC One X
    2.158
  • LG Aka
    2.145
  • Xiaomi Redmi Note 4 (X20)
    2.145
  • Archos 50 Diamond
    2.134
  • Xiaomi Redmi Note
    2.119
  • Xiaomi Mi 4S
    2.095
  • Acer Liquid X2
    2.084
  • Huawei P8lite
    2.078
  • vivo V5
    2.059
  • Moto G 3rd gen max manual
    2.026
  • Xiaomi Mi 3
    2.001
  • Xiaomi Mi Max
    1.996
  • Sony Xperia E4g
    1.972
  • OnePlus One
    1.961
  • Meizu m3 note
    1.923
  • BlackBerry Leap
    1.892
  • Meizu m2 note
    1.892
  • HTC Butterfly
    1.873
  • Sony Xperia Z1 Compact
    1.772
  • ZTE Nubia Z9 mini
    1.759
  • Sony Xperia U
    1.758
  • Asus Zenfone Selfie
    1.68
  • ZTE Nubia Z9
    1.659
  • Jolla Jolla
    1.605
  • Motorola Moto E
    1.545
  • Sony Xperia M
    1.473
  • Sony Xperia L
    1.351
  • HTC Desire C
    1.3
  • Meizu MX
    1.221
  • Sony Xperia E
    1.215

The panel in the Mi Mix 2 is still an IPS LCD, like on the previous model. However, it is surprisingly color accurate this time around. Some settings are required, though. The default Automatic contrast mode works well enough, but results in an average deltaE of 7.1 and a maximum of 8.5. It is also the only mode that allows shifting the gamma to warm or cold, if that is your thing.

However, if accuracy is what you are after, don't fiddle with that at all and simply switch over to Standard contrast mode. Dial the brightness down a bit to about 76% and you can expect color deviations as little as deltaE 0.9 on average and a max of deltaE 2.5.

Connectivity

Xiaomi is marketing the Mi Mix 2 as a "Global bands" device, "great for business professionals", etc. This sounds perfectly believable thanks to the dual SIM support and especially the powerful X16 LTE modem, inside the Snapdragon 835 chipset. 24 LTE bands should have you well covered. If not, there are seven HSPDA ones to fall back to as well. And if all else fails, quad-band GSM support.

Xiaomi Mi Mix 2 review

Theoretical download speeds of Cat.16 mean up to 1GBps. 4x20 MHz carrier aggregation is another glorious bonus to enjoy, provided your carrier can provide the network to match this.

On the local side, the Mi Mix 2 is fully decked-out as well. You get Dual-band 802.11ac Wi-Fi and a fresh new Bluetooth 5.0 radio.

NFC support is there too - and full-featured at that - including card emulation support. Sadly, there is no FM radio receiver in the Mix 2 - a pretty typical omission on most current flagships.

We were kind of hoping for an IR as well, since Xiaomi does still offer it on a large segment of its portfolio. Unfortunately, it is missing from the Mi Mix 2.

After the demise of the 3.5mm audio jack, the Mi Mix 2 is only left with a single port. So, connecting more than one thing at a time definitely means living the dongle life. On the plus side, Xiaomi didn't skip on any trimming for the Type-C port. Its audio output is actually analog, as opposed to Type C digital audio. That means you don't need expensive dongles or headphones, but only a passive adapter to get the sound out of the internal DAC. If the latter is not up to your personal audiophile standards, you can still leverage digital audio output through the same port.

Xiaomi Mi Mix 2 review

Data transfer reached USB 3.0 speeds in our tests, so you can count on 5Gbps transfers, given the right equipment.

Battery life

While we are sure many users will appreciate the overall shrinking in size and weight of the Mi Mix 2, compared to its predecessor, it does come at a price. We are referring to the significantly smaller 3,400 mAh battery, in particular.

However, that is only part of the reason why the Mix 2 managed a notably lower 65 hour score in our standard endurance test. The X16 LTE model inside the Snapdragon 835 actually managed to hang on to a network signal just as long as excepted in our talk time and standby tests.

Xiaomi Mi Mix 2 review

It's the other two scores that actually drag the overall rating down. We are inclined to attribute the poor on-screen efficiency mostly to OS optimization issues.

That being said, a 65 hour rating is not catastrophic. It is actually roughly what the smaller iPhone 8 manages as well. So, we'll just call it serviceable, but not remarkable in any way and hope for better luck with a future update.

Battery capacity aside, it is nice to see Quick Charge 3.0 support, just like on the original Mix. Wireless charging is still a notable omission, but if you hook up the Mix 2 with a proper charger, it can charge from 0% to 47% in only 30 minutes.

The battery testing procedure is described in detail in case you're interested in the nitty-gritties. You can also check out our complete battery test table, where you can see how all of the smartphones we've tested will compare under your own typical use.

Reader comments

  • AnonD-740699

Kind of strange. I have the Mi Mix 2 for a couple of months now and while I can see it lasts a bit less than the Mi 5 it replaced, the endurance rating seems suspiciously low - I get 2 full days with moderate usage, sometimes more (the Mi 5 always ga...

  • AnonD-391304

I haven't tried it but it should as it's stock with a locked bootloader.

  • Raj

May be gsm arena needs to retest battery life. It comfortably gives an endurance rating of more than 80 hrs and that too on dual sim