realme X3 SuperZoom vs Samsung Galaxy M51 vs Samsung Galaxy A51

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

Display

Size:

6.6 inches
6.7 inches
6.5 inches

Resolution:

2400 x 1080 pixels, 20:9 ratio, 399 PPI
2340 x 1080 pixels, 20:9 ratio, 385 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI

Technology:

IPS LCD
Super AMOLED Plus
Super AMOLED

Screen-to-body:

84.81 %
88.27 %
87.37 %

Features:

120Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
60Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 855+ SM8150-AC
Qualcomm Snapdragon 730 SM7150-AA
Samsung Exynos 9611

Processor:

Octa-core, 2960 MHz, Kryo 485, 64-bit, 7 nm
Octa-core, 2200 MHz, Kryo 470, 64-bit, 8 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm

GPU:

Adreno 640
Adreno 618
Mali-G72 MP3

RAM:

8GB LPDDR4
6GB LPDDR4
4GB LPDDR4

Internal storage:

128GB (UFS 3.0), not expandable
128GB, available to use: 106 GB
128GB, available to use: 105.9 GB

Storage expansion:

microSDXC up to 512 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (10)
Android (10), Samsung One UI
Android (11, 10), Samsung One UI

Battery

Capacity:

4200 mAh
7000 mAh
4000 mAh

Type:

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

Battery life test results:

Charging:

Fast charging
Fast charging, Reverse charging
Fast charging

Max charge speed:

Wired: 30.0W
Wired: 25.0W

Camera

Rear:

Quad camera
Quad camera
Quad camera

Main camera:

64 MP (PDAF)
64 MP (PDAF)
48 MP (PDAF)

Specifications:

Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.76"; Pixel size: 0.8 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

8 MP (Telephoto, OIS, PDAF)
12 MP (Ultra-wide)
12 MP (Ultra-wide)

Specifications:

Optical zoom: 5.0x; Aperture size: F3.4; Focal Length: 124 mm
Aperture size: F2.2
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm

Third camera:

8 MP (Ultra-wide)
5 MP (Macro)
5 MP (Macro)

Specifications:

Aperture size: F2.3; Focal Length: 16 mm; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F2.4
Aperture size: F2.4; Focal Length: 40 mm

Fourth camera:

2 MP (Macro)
5 MP (Depth information)
5 MP (Depth information)

Specifications:

Aperture size: F2.4; Pixel size: 1.75 μm
Aperture size: F2.4
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm

Video recording:

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

Features:

Time-lapse video, EIS
Hyperlapse, EIS

Front:

32 MP (Dual-Camera, EIS)
32 MP (HDR)
32 MP (HDR)

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

6.45 x 2.98 x 0.35 inches (163.8 x 75.8 x 8.9 mm)
6.45 x 3.00 x 0.37 inches (163.9 x 76.3 x 9.5 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)

Weight:

7.13 oz (202.0 g)
7.51 oz (213.0 g)
6.07 oz (172.0 g)

Materials:

Back: Glass; Frame: Plastic
Back: Plastic; Frame: Plastic
Back: Plastic; Frame: Plastic

Biometrics:

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

Keys:

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

Colors:

Arctic white, Glacier blue
Black, 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), 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), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
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 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 41(2600+)

UMTS:

Bands 5(850), 8(900), 1(2100)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)

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

Dual SIM:

Yes
Yes

SIM type:

Nano SIM
Nano SIM
Nano SIM

Multimedia

Headphones:

No 3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Dolby Atmos
Dolby Atmos

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM, Stereo, RDS
FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
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
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB:

Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0

Features:

Charging, Headphones port
Charging
Charging, OTG

Location:

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

Sensors:

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

Other:

NFC
NFC
NFC, ANT+

Regulatory Approval

FCC approval:

Date approved:

Nov 28, 2019

FCC ID value:

A3LSMA515FN link

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

Price:

€ 360
$ 400

User Manual:

This is the official Samsu​ng Galaxy A51 User Guide in English provided from the manufacturer.

In The Box:

30W Dart Charger, USB Type-C Cable, Protect Case, Protect Film, SIM Card Tool, Important Info Booklet with Warranty Card, Quick Guide

Availability

Officially announced:

May 26, 2020
Aug 31, 2020
Dec 12, 2019
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