Samsung Galaxy A51 vs Huawei P Smart (2021) vs Samsung Galaxy M31 - specs comparison

Display

Size:

6.5 inches

6.7 inches

6.4 inches

Resolution:

2400 x 1080 pixels, 20:9 ratio, 405 PPI

2400 x 1080 pixels, 20:9 ratio, 395 PPI

2340 x 1080 pixels, 19.5:9 ratio, 403 PPI

Technology:

Super AMOLED

IPS LCD

Super AMOLED

Screen-to-body:

87.37 %

84.27 %

83.97 %

Peak brightness:

420 cd/m2 (nit)

Features:

60Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

60Hz refresh rate, Ambient light sensor, Proximity sensor

Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip:

Samsung Exynos 9611

HiSilicon Kirin 710A

Exynos 9611

Processor:

Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm

Octa-core, 2000 MHz, Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 14 nm

Octa-core, 2300 MHz, Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm

GPU:

Mali-G72 MP3

Mali-G51 MP4

Mali-G72 MP3

RAM:

4GB LPDDR4

4GB

6GB LPDDR4

Internal storage:

128GB, available to use: 105.9 GB

128GB

64GB (UFS 2.1), available to use: 49 GB

Storage expansion:

microSDXC up to 512 GB

Device type:

Smartphone

OS:

Android (10), Samsung One UI

Android (10), Huawei Emotion UI

Android (10), Samsung One UI

Battery

Capacity:

4000 mAh

5000 mAh

6000 mAh

Type:

Li - Polymer, Not user replaceable

Not user replaceable

Li - Polymer, Not user replaceable

Battery life test results:

link

Charging:

Fast charging

Huawei SuperCharge

Fast charging

Max charge speed:

Wired: 22.5W

Wired: 15.0W

Camera

Rear:

Quad camera

Main camera:

48 MP (PDAF)

64 MP (PDAF)

Specifications:

F2.0; 26 mm; 1/2"; 0.8 μm

F1.8

F1.8; 26 mm; 1/1.7"; 0.8 μm

Second camera:

12 MP (Ultra-wide)

8 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm

Aperture size: F2.4

Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera:

5 MP (Macro)

2 MP (Macro)

5 MP (Macro)

Specifications:

Aperture size: F2.4; Focal Length: 40 mm

Aperture size: F2.4

Aperture size: F2.2; Focal Length: 25 mm; Sensor size: 1/5"; Pixel size: 1.12 μm

Fourth camera:

5 MP (Depth information)

2 MP (Depth information)

5 MP (Depth information)

Specifications:

Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm

Aperture size: F2.4

Aperture size: F2.2

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD)

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD), 1280x720 (HD) (240 fps)

Features:

Hyperlapse, EIS

Front:

32 MP (HDR)

8 MP

32 MP (HDR, Slow-motion videos)

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)

6.52 x 3.03 x 0.36 inches (165.65 x 76.88 x 9.26 mm)

6.27 x 2.96 x 0.35 inches (159.2 x 75.1 x 8.9 mm)

Weight:

6.07 oz (172.0 g)

7.27 oz (206.0 g)

6.74 oz (191.0 g)

Materials:

Back: Plastic; Frame: Plastic

Biometrics:

2D Face unlock, In-screen fingerprint

Fingerprint (touch)

2D Face unlock, Fingerprint (touch)

Keys:

Right: Volume control, Lock/Unlock key

Colors:

Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Midnight black, Crush green, Blush gold

Blue, Black, Red

Cellular

LTE (FDD):

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)

Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)

LTE (TDD):

Bands 38(2600), 39(1900+), 41(2600+)

Bands 38(2600), 40(2300), 41(2600+)

UMTS:

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

Data Speed:

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

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

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

Dual SIM:

Yes

SIM type:

Nano SIM

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack

Speakers:

Earpiece, Loudspeaker

Features:

Dolby Atmos

Screen mirroring:

Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

5.0

5.1

5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

802.11 b, g, n; Wi-Fi Direct, Hotspot

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB:

Type-C (reversible), USB 2.0

Features:

Charging, OTG

Charging

Location:

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

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

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

Sensors:

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

Accelerometer, Compass

Accelerometer, Gyroscope, Compass

Other:

NFC, ANT+

NFC

Regulatory Approval

FCC approval:

Date approved:

Nov 28, 2019

Feb 07, 2020

FCC ID value:

A3LSMA515FN link

A3LSMM315F link

Measured SAR:

Head:

0.89 W/kg

0.42 W/kg

Body:

1.18 W/kg

0.41 W/kg

Simultaneous Transmission:

1.56 W/kg

1.54 W/kg

Wireless Router:

1.12 W/kg

0.74 W/kg

Phablet:

2.76 W/kg

Buyers information

Price:

$ 400

€ 229

€ 240

User Manual:

This is the official Samsung Galaxy A51 User Guide in English provided from the manufacturer.

This is the official Samsung Galaxy M31 User Guide in English provided from the manufacturer.

In The Box:

Charger, Charging cable type-C, Quick Start Guide, SIM pin, 3.5 mm headphones

15W fast charger, Data cable, Ejection pin, User Manual

Availability

Officially announced:

Dec 12, 2019

Feb 25, 2020