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Xiaomi Mix 4
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Phone Insight
Full Specifications October 20, 2026
Xiaomi · 2021

Xiaomi Mix 4

Xiaomi Mix 4 Android smartphone. Announced Aug 2021. Features 6.67″ display, Snapdragon 888+ 5G chipset, 4500 mAh battery, 512 GB storage, 12 GB RAM, Corning Gorilla Glass Victus.

Display 6.67"
Chipset Snapdragon 888+ 5G
RAM 8/12 GB
Storage 128GB/256GB/512GB storage, no card slot
Camera 108 MP
Battery 4500 mAh
Build 225g, 8mm thickness

Launch

Announced 2021, August 10
Status Available. Released 2021, August 16

Platform

OS Android 11, MIUI 12.5
Chipset Qualcomm SM8350 Snapdragon 888+ 5G (5 nm)
CPU Octa-core (1x2.99 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
GPU Adreno 660

Display

Type AMOLED, 1B colors, 120Hz, HDR10+, Dolby Vision, 800 nits (HBM)
Size 6.67 inches, 107.4 cm 2 (~87.6% screen-to-body ratio)
Resolution 1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Protection Corning Gorilla Glass Victus

Memory

Card slot No
Internal 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
memoryother UFS 3.1

Main Camera

Triple 108 MP, f/1.9, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS 8 MP, f/4.1, 120mm (periscope telephoto), PDAF, OIS, 5x optical zoom 13 MP, f/2.2, 12mm, 123˚ (ultrawide), 1/3.06", 1.12µm
Features Laser AF, color spectrum sensor, Dual-LED flash, HDR, panorama
Video 8K@24fps, 4K@30/60fps, 1080p@30/60/120/480fps; gyro-EIS, HDR10+

Selfie camera

Single 20 MP, 27mm (wide), 1/3.4", 0.8µm, under display
Features HDR
Video 1080p@30fps

Body

Dimensions 162.6 x 75.4 x 8 mm (6.40 x 2.97 x 0.31 in)
Weight 225 g (7.94 oz)
Build Glass front (Gorilla Glass Victus), ceramic back, aluminum frame
SIM Nano-SIM + Nano-SIM
bodyother IP53 dust protected and water resistant (vertical water sprays)

Battery

Type Li-Po 4500 mAh
Charging 120W wired, PD3.0, QC4, 100% in 15 min 50W wireless, 100% in 28 min

Sound

Loudspeaker Yes, with stereo speakers
3.5mm jack No
optionalother 24-bit/192kHz Hi-Res audio Tuned by Harman Kardon Snapdragon Sound

Comms

WLAN Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Bluetooth 5.2, A2DP, LE, aptX HD
Positioning GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
NFC Yes
Infrared port Yes
Radio No
USB USB Type-C 2.0

Network

Technology GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42
5G bands 1, 3, 5, 8, 28, 41, 77, 78, 79 SA/NSA/Sub6
Speed HSPA, LTE, 5G

Features

Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
featuresother Ultra Wideband (UWB) support

Misc

Colors Ceramic Black, Ceramic White, Shadow Gray
Models 2106118C
In depth

Full specifications

Announced 2021, August 10
Status Available. Released 2021, August 16
OS Android 11, MIUI 12.5
Chipset Qualcomm SM8350 Snapdragon 888+ 5G (5 nm)
CPU Octa-core (1x2.99 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
GPU Adreno 660
Type AMOLED, 1B colors, 120Hz, HDR10+, Dolby Vision, 800 nits (HBM)
Size 6.67 inches, 107.4 cm 2 (~87.6% screen-to-body ratio)
Resolution 1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Protection Corning Gorilla Glass Victus
Card slot No
Internal 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
memoryother UFS 3.1
Triple 108 MP, f/1.9, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS 8 MP, f/4.1, 120mm (periscope telephoto), PDAF, OIS, 5x optical zoom 13 MP, f/2.2, 12mm, 123˚ (ultrawide), 1/3.06", 1.12µm
Features Laser AF, color spectrum sensor, Dual-LED flash, HDR, panorama
Video 8K@24fps, 4K@30/60fps, 1080p@30/60/120/480fps; gyro-EIS, HDR10+
Single 20 MP, 27mm (wide), 1/3.4", 0.8µm, under display
Features HDR
Video 1080p@30fps
Dimensions 162.6 x 75.4 x 8 mm (6.40 x 2.97 x 0.31 in)
Weight 225 g (7.94 oz)
Build Glass front (Gorilla Glass Victus), ceramic back, aluminum frame
SIM Nano-SIM + Nano-SIM
bodyother IP53 dust protected and water resistant (vertical water sprays)
Type Li-Po 4500 mAh
Charging 120W wired, PD3.0, QC4, 100% in 15 min 50W wireless, 100% in 28 min
Loudspeaker Yes, with stereo speakers
3.5mm jack No
optionalother 24-bit/192kHz Hi-Res audio Tuned by Harman Kardon Snapdragon Sound
WLAN Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Bluetooth 5.2, A2DP, LE, aptX HD
Positioning GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
NFC Yes
Infrared port Yes
Radio No
USB USB Type-C 2.0
Technology GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42
5G bands 1, 3, 5, 8, 28, 41, 77, 78, 79 SA/NSA/Sub6
Speed HSPA, LTE, 5G
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
featuresother Ultra Wideband (UWB) support
Colors Ceramic Black, Ceramic White, Shadow Gray
Models 2106118C
Price About 660 EUR
PhoneInsight Benchmark
78.6/100
Premium

A specs-derived composite score, not a lab benchmark -- useful for ranking and comparison.

Processor 76.4
Display 80.7
Camera 85.3
Battery 85.6
0.7%Popularity rank
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