Samsung Galaxy M21 vs Samsung Galaxy M51 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Samsung Galaxy M21 Samsung Galaxy M51
Released · Mar 23, 2020
Released · Sep 11, 2020
6.4-inch · 2340x1080px
6.7-inch · 2340x1080px
Triple camera
Quad camera
4GB · 64GB
6GB · 128GB
6000 mAh
7000 mAh
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Availability

Officially announced
Mar 18, 2020 Aug 31, 2020
Prices (MSRP)
€360

Design

Dimensions
6.26 x 2.96 x 0.35 inches
159.0 x 75.1 x 8.9 mm
6.45 x 3.00 x 0.37 inches
163.9 x 76.3 x 9.5 mm
Weight
6.63 oz / 188.0 g 7.51 oz / 213.0 g
Materials
Back: Plastic
Frame: Plastic
Back: Plastic
Frame: Plastic
Biometrics
2D Face unlock, Fingerprint (touch) Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Midnight blue, Raven black Black, White

Display

Size
6.4-inch, 84.11% screen-to-body 6.7-inch, 88.27% screen-to-body
Type
Super AMOLED, 420 nits Super AMOLED Plus
Resolution
2340x1080px, 19.5:9 ratio, 403 PPI 2340x1080px, 20:9 ratio, 385 PPI
Protection
Corning Gorilla Glass 3 Corning Gorilla Glass 3
Features
Scratch-resistant glass, Proximity sensor

Hardware

System chip
Exynos 9611 (10 nm) Snapdragon 730 SM7150-AA (8 nm)
Processor
Octa-core
4x2.3GHz Cortex-A73
4x1.7G​Hz Cortex-A53
Octa-core
2x2.2GHz Kryo 470
6x1.8GHz Kryo 470
GPU
Mali-G72 MP3 Adreno 618
Memory
4GB (LPDDR4)/64GB
6GB/128GB
6GB (LPDDR4)/128GB
Storage expansion
microSDXC up to 512 GB microSDXC up to 512 GB
OS
Android (11, 10) Android (10)

Battery

Type
6000 mAh, Li - Polymer 7000 mAh
Charging
Fast charging Fast charging
Reverse wired charging
Charge speed
Wired: 25.0W

Camera

Rear
Triple camera Quad camera
Main camera
48 MP (PDAF)
Aperture size: F2.0
Focal length: 26 mm
Sensor size: 1/2"
Pixel size: 0.8 μm
64 MP (PDAF)
Aperture size: F1.8
Focal length: 26 mm
Sensor size: 1/1.76"
Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide)
Aperture size: F2.2
Focal Length: 12 mm
Sensor size: 1/4"
Pixel size: 1.12 μm
12 MP (Ultra-wide)
Aperture size: F2.2
Third camera
5 MP (Depth information)
Aperture size: F2.2
5 MP (Macro)
Aperture size: F2.4
Fourth camera
5 MP (Depth information)
Aperture size: F2.4
Flash
LED LED
Video recording
4K UHD (30 fps), 1080p, 720p (240 fps)
EIS
4K UHD (30 fps), 1080p
Front
20 MP (HDR)
Video capture: 1080p (30 fps)
32 MP (HDR)
Video capture: 1080p (30 fps)

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
USB
Type-C, USB 2.0 Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Loudspeaker
Features
Dolby Atmos
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM FM, Stereo, RDS
Additional microphone(s)
Noise cancellation

Cellular

LTE Bands
1, 3, 5, 7, 8, 20 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 66
TDD Bands
38, 40, 41 38, 40, 41
3G Bands
1, 2, 5, 8 1, 2, 4, 5, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
Dual SIM
Yes Yes
SIM type
Nano SIM Nano SIM

Alternative variants

with 128GB storage
Memory 6GB/128GB
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