Xiaomi·Flagship · Released Aug 2021

Mi Mix 4

Under-display camera flagship with a ceramic body.

86/ 100 SpecEagle score
From
$770
Color · Ceramic Black
Display
6.67" FHD+ AMOLED 120Hz, UDC
Chipset
Snapdragon 888 Plus
RAM
8/12 GB
Storage
128/256 GB
Battery
4500 mAh, 120W + 50W wireless
Main camera
108 MP + 13 MP UW + 8 MP 5x periscope
Weight
225 g
Quick answer

The Xiaomi Mi Mix 4 is a flagship Xiaomi smartphone released Aug 2021, with a launch price of $770. It pairs the Snapdragon 888 Plus with a 6.67" FHD+ AMOLED 120Hz, UDC display, a 108 MP + 13 MP UW + 8 MP 5x periscope main camera and a 4500 mAh, 120W + 50W wireless battery. In SpecEagle's editorial review it scores 86/100 — The Mix returns with UDC. Standout strengths: under-display camera + ceramic unibody and 120w wired + 50w wireless charging. Main trade-off: udc selfie soft.

AI Snapshot

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.

Read the full review
Subscores · 0–100
Display88
Camera82
Performance92
Battery86
Build84
  • Under-display camera + ceramic unibody
  • 120W wired + 50W wireless charging
  • 5x periscope + 888+ flagship power

Full specifications

Type
AMOLED, 120Hz, Under-Display Camera
Size
6.67 inches
Resolution
1080 x 2400 px
Main
108 MP Samsung HMX, f/1.95
Ultrawide
13 MP, 120 deg
Periscope
8 MP 5x optical, OIS
Selfie
20 MP under-display

Benchmarks

vs 2025 flagship class average
AnTuTu v8
Δ class avg -49.4%
This
820,000
Class avg
1,620,000

How the Mi Mix 4 compares

Mi Mix 4iPhone 16Xiaomi 13 Pro
SpecEagle score868686
ChipsetSnapdragon 888 PlusApple A18SD 8 Gen 2
Display6.67" FHD+ AMOLED 120Hz, UDC6.1" OLED 60 Hz6.73" LTPO AMOLED
Main camera108 MP + 13 MP UW + 8 MP 5x periscope48 MP · f/1.650 MP · f/1.9
Battery4500 mAh, 120W + 50W wireless3,561 mAh4,820 mAh
Launch price$770$799$1,299

Frequently asked questions

When was the Mi Mix 4 released?

The Mi Mix 4 was released in Aug 2021.

How much does the Mi Mix 4 cost?

The Mi Mix 4 launched at $770 (manufacturer suggested price at release; street and second-hand prices vary by region, storage tier and time since launch).

What is the Mi Mix 4 screen size and type?

The Mi Mix 4 has a 6.67" FHD+ AMOLED 120Hz, UDC display.

What chipset does the Mi Mix 4 use?

The Mi Mix 4 is powered by the Snapdragon 888 Plus chipset.

How much RAM and storage does the Mi Mix 4 have?

The Mi Mix 4 ships with 8/12 GB (RAM · base storage); higher configurations may be available.

What is the Mi Mix 4 battery capacity?

The Mi Mix 4 has a 4500 mAh, 120W + 50W wireless battery.

What is the Mi Mix 4 main camera?

The Mi Mix 4 has a 108 MP + 13 MP UW + 8 MP 5x periscope main camera.

Does the Mi Mix 4 have a telephoto zoom camera?

Yes — the Mi Mix 4 includes a dedicated telephoto camera: 8 MP 5x optical, OIS.

Does the Mi Mix 4 have 5G?

The Mi Mix 4 supports 5G (Yes, sub-6).

How much does the Mi Mix 4 weigh?

The Mi Mix 4 weighs 225 g.

What colours does the Mi Mix 4 come in?

The Mi Mix 4 is available in 3 colours: Ceramic Black, Ceramic White, Ceramic Gray.

Is the Mi Mix 4 worth buying?

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. SpecEagle gives the Mi Mix 4 an editorial score of 86/100.

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