Xiaomi Mi 8 vs Samsung Galaxy A51
Compare phone and tablet specifications of up to three devices. Type a model name in the search field of our phone specs comparison tool or pick a popular device from the ones below.
Display
Size
Resolution
Technology
AMOLED
Super AMOLED
Screen-to-body
83.66 %
87.37 %
Peak brightness
600 cd/m2 (nit)
Features
HDR video support, Pressure-sensitive, Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Hardware
System chip
Qualcomm Snapdragon 845 SDM845
Samsung Exynos 9611
Processor
GPU
Adreno 630
Mali-G72 MP3
RAM
Internal storage
256GB
128GB, available to use: 105.9 GB
Storage expansion
microSDXC up to 512 GB
OS
Android (10, 9.0 Pie, 8.0 Oreo)
Android (10), Samsung One UI
Battery
Capacity
3400 mAh
4000 mAh
Type
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Charging
Qualcomm Quick Charge 4+
Fast charging
Camera
Rear
Dual camera
Quad camera
Main camera
Specifications
Aperture size: F1.8; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera
12 MP (Telephoto, Autofocus)
12 MP (Ultra-wide)
Specifications
Optical zoom: 2x; Aperture size: F2.4; Focal Length: 56 mm; Sensor size: 1/3.4"; Pixel size: 1 μm
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Third camera
5 MP (Macro)
Specifications
Aperture size: F2.4; Focal Length: 40 mm
Fourth camera
5 MP (Depth information)
Specifications
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
Features
Video calling, Video sharing
Hyperlapse, EIS
Front
20 MP (HDR)
32 MP (HDR)
Design
Dimensions
Weight
the average is 6.2 oz (176 g)
the average is 6.2 oz (176 g)
Materials
Back: Glass (Corning Gorilla Glass 5)
Back: Plastic; Frame: Plastic
Biometrics
2D Face unlock, Fingerprint (touch)
2D Face unlock, In-screen fingerprint
Colors
Black, Gold, Blue, White
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Cellular
LTE (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 20(800 DD)
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), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
LTE (TDD)
Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 41(2600+)
UMTS
850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz
Data Speed
Dual SIM
Yes
SIM type
Nano SIM
Nano SIM
HD Voice
Yes
VoLTE
Yes
Multimedia
Headphones
No 3.5mm jack
3.5mm jack
Speakers
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features
Album art cover, Background playback
Dolby Atmos
Screen mirroring
Wireless screen share
Wireless screen share
Radio
FM
Additional microphone(s)
for Noise cancellation
for Noise cancellation
Connectivity & Features
Bluetooth
5.0
5.0
Wi-Fi
802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
USB
Type-C (reversible)
Type-C (reversible), USB 2.0
Features
Mass storage device, Charging, Headphones port
Charging, OTG
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)
Other
NFC, VoIP, Tethering, Computer sync, OTA sync
NFC, ANT+
Regulatory Approval
Measured SAR
Head
0.89 W/kg
Body
1.18 W/kg
Simultaneous Transmission
1.56 W/kg
Wireless Router
1.12 W/kg
Phablet
2.76 W/kg
Buyers information
In The Box
Mi 8 Protective cover / Power adapter / USB Type-C cable / Type-C to audio converter / SIM insertion tool / User guide
Price
$ 400
