SpecEagle review · Xiaomi

Xiaomi Mi Mix 4 review: Under-display camera flagship with a ceramic body.

SpecEagle Editorial·Aug 2021·$770
Overall
86/100
Class rank
#2 of 9
Tier
Flagship
Buy?
Yes
The verdict, up front

The Mix returns with UDC.

Mi Mix 4 revived the experimental Mix line with an under-display camera for a truly uninterrupted screen, a premium ceramic unibody and Snapdragon 888+ with 120W/50W charging. The boldest all-screen statement of 2021.

01Display

88/100

88/100 — right at the average for flagship phones of 2021.

TypeAMOLED, 120Hz, Under-Display Camera
Size6.67 inches
Resolution1080 x 2400 px

02Camera

82/100

82/100 puts it above the 79-point average for flagship phones of 2021.

Main108 MP Samsung HMX, f/1.95
Ultrawide13 MP, 120 deg
Periscope8 MP 5x optical, OIS
Selfie20 MP under-display

03Performance

92/100

At 92/100 this is one of the strongest performance showings among flagship phones of 2021 — 8 points above the cohort average.

ChipsetSnapdragon 888 Plus (5nm)
GPUAdreno 660

04Battery

86/100

86/100 puts it above the 82-point average for flagship phones of 2021.

Capacity4500 mAh
Charging120W wired, 50W wireless

05Build

84/100

84/100 puts it above the 81-point average for flagship phones of 2021.

What works
  • Under-display camera + ceramic unibody
  • 120W wired + 50W wireless charging
  • 5x periscope + 888+ flagship power
What doesn't
  • UDC selfie soft
  • Heavy ceramic 225 g
  • No 3.5 mm jack
Cross-shop it against
iQOO 11
$650 · score 90/100

How this review is built: every section score, spec row and comparison on this page comes from SpecEagle's tracked catalogue — scores weight measured specs against the 9-phone cohort of flagship devices released around the same time. We don't publish invented lab anecdotes. Spot an error? .