Xiaomi Mi 6 vs Samsung Galaxy S21 Ultra

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

5.2 inches
6.8 inches

Resolution:

1920 x 1080 pixels, 428 PPI
3200 x 1440 pixels, 20:9 ratio, 516 PPI

Technology:

IPS LCD
Dynamic AMOLED

Screen-to-body:

71.27 %
89.33 %

Peak brightness:

600 cd/m2 (nit)
1600 cd/m2 (nit)

Features:

Ambient light sensor, Proximity sensor
120Hz refresh rate (adaptable), HDR video support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 835 MSM8998
Qualcomm Snapdragon 888

Processor:

Octa-core, 2457 MHz, Kryo 280, 64-bit, 10 nm
Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm

GPU:

Adreno 540
Adreno 660

RAM:

6GB LPDDR4
12GB LPDDR5

Internal storage:

128GB
128GB (UFS 3.1), not expandable

Device type:

Smartphone
Smartphone

OS:

Android (9.0 Pie, 8.1 Oreo, 7.1 Nougat), Xiaomi MI UI
Android (11), Samsung One UI

Battery

Capacity:

3350 mAh
5000 mAh

Type:

Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable

Charging:

Qualcomm Quick Charge 3.0
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging

Max charge speed:

Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Dual camera
Quad camera

Main camera:

12 MP (OIS, PDAF)
108 MP (OIS, Laser and PDAF)

Specifications:

Aperture size: F1.8; Focal length: 27 mm; Sensor size: 1/2.9"; Pixel size: 1.25 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.33"; Pixel size: 0.8 μm

Second camera:

12 MP (Telephoto, Autofocus)
10 MP (Telephoto, OIS, PDAF)

Specifications:

Optical zoom: 2x; Aperture size: F2.6; Focal Length: 52 mm; Pixel size: 1 μm
Optical zoom: 3x; Aperture size: F2.4; Focal Length: 70 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Third camera:

12 MP (Ultra-wide, PDAF)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Fourth camera:

10 MP (Periscope, OIS, PDAF)

Specifications:

Optical zoom: 10x; Aperture size: F4.9; Focal Length: 240 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

Video calling, Video sharing
HDR, EIS

Front:

8 MP
40 MP (PDAF, HDR)

Video capture:

1920x1080 (Full HD)
3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

5.72 x 2.78 x 0.29 inches (145.17 x 70.49 x 7.45 mm)
6.50 x 2.98 x 0.35 inches (165.1 x 75.6 x 8.9 mm)

Weight:

5.93 oz (168.0 g)
8.04 oz (229.0 g)

Materials:

Back: Glass; Frame: Metal
Back: Glass (Corning Gorilla Glass Victus); Frame: Aluminum

Resistance:

Splash
Water, Dust; IP68

Biometrics:

Fingerprint (touch)
2D Face unlock, Ultrasonic in-screen fingerprint

Keys:

Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Black, Blue, White
Phantom black, Silver

Cellular

5G:

SA, NSA, Sub-6, mmWave

LTE (FDD):

Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)

LTE (TDD):

Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)

UMTS:

850, 900, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz

Data Speed:

LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

Dual SIM:

Yes

SIM type:

Nano SIM
Nano SIM

Multimedia

Headphones:

No 3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Multiple speakers
Earpiece, Multiple speakers

Features:

Album art cover, Background playback
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus

Screen mirroring:

Wireless screen share
Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation, Video recording

Connectivity & Features

Bluetooth:

5.0
5.1

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, Hotspot

USB:

Type-C (reversible)
Type-C (reversible), USB 3.2

Features:

Mass storage device, Charging, Headphones port
Charging, Headphones port, OTG, Video out

Location:

GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer

Other:

NFC, Infrared, Tethering, Computer sync, OTA sync
NFC, ANT+

Buyers information

Price:

$ 421
$ 1200

In The Box:

Charger, USB Type C cable, Type C to 3.5mm adapter, Getting started guide, Warranty, SIM removal tool
C to C Data Cable, Ejection Pin

Availability

Officially announced:

Apr 19, 2017
Jan 14, 2021

Scheduled release:

Jan 29, 2021
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