Display
Size:
6.4 inches
6.5 inches
6.7 inches
Resolution:
2160 x 1080 pixels, 18:9 ratio, 380 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
2400 x 1080 pixels, 20:9 ratio, 393 PPI
Technology:
Super AMOLED
IPS LCD
Screen-to-body:
78.16 %
87.37 %
84.36 %
Colors:
16 777 216
Features:
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
60Hz refresh rate, Ambient light sensor, Proximity sensor
Hardware
System chip:
Qualcomm Snapdragon 450 SDM450
Samsung Exynos 980
Qualcomm Snapdragon 690 SM6350
Processor:
Octa-core, 1800 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2200 MHz, ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm
Octa-core, 2000 MHz, Kryo 560, 64-bit, 8 nm
GPU:
Adreno 506
Mali-G76 MP5
Adreno 619L
RAM:
3GB LPDDR3
6GB LPDDR4
6GB LPDDR4
Internal storage:
32GB, available to use: 21 GB
128GB, available to use: 105.3 GB
128GB, available to use: 99 GB
Storage expansion:
microSDXC up to 128 GB
microSDXC up to 1000 GB
microSDXC up to 2000 GB
Device type:
Smartphone
Smartphone
Smartphone
OS:
Android (9.0 Pie)
Android (10), Samsung One UI
Android (10)
Battery
Capacity:
4000 mAh
4500 mAh
4000 mAh
Type:
Not user replaceable
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Qualcomm Quick Charge 3.0
Fast charging
Qualcomm Quick Charge 4
Max charge speed:
Wired: 25.0W
Camera
Rear:
Dual camera
Quad camera
Quad camera
Main camera:
16 MP (Autofocus)
48 MP (PDAF)
64 MP (PDAF)
Specifications:
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.8; Focal length: 25 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera:
5 MP
12 MP (Ultra-wide)
5 MP (Ultra-wide)
Specifications:
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Third camera:
5 MP (Macro)
2 MP (Macro)
Specifications:
Aperture size: F2.4; Focal Length: 40 mm
Aperture size: F2.4; Pixel size: 1.75 μm
Fourth camera:
5 MP (Depth information)
2 MP (Depth information)
Specifications:
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.4; Pixel size: 1.75 μm
Video recording:
1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (480 fps)
3840x2160 (4K UHD) (30 fps)
Features:
Video calling, Video sharing
Hyperlapse, EIS
Time-lapse video, EIS
Front:
13 MP
32 MP (HDR)
16 MP
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
6.53 x 3.17 x 0.33 inches (165.9 x 80.5 x 8.4 mm)
6.26 x 2.90 x 0.34 inches (158.9 x 73.6 x 8.7 mm)
6.55 x 3.04 x 0.33 inches (166.4 x 77.2 x 8.4 mm)
Weight:
5.99 oz (170.0 g)
6.60 oz (187.0 g)
7.14 oz (202.0 g)
Materials:
Back: Plastic; Frame: Metal
Back: Plastic; Frame: Aluminum
Biometrics:
2D Face unlock, Fingerprint (touch)
2D Face unlock, In-screen fingerprint
Fingerprint (touch)
Keys:
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Left: Volume control; Right: Lock/Unlock key
Colors:
Quicksilver
Prism cube black
Titan gray
Cellular
5G:
n41, n71, SA, NSA
SA, NSA
LTE (FDD):
Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 66(AWS-3), 71(600)
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), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 14(700 PS), 20(800 DD), 29(700 d), 30(2300 WCS), 66(AWS-3)
LTE (TDD):
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
UMTS:
Bands 5(850), 4(1700/2100), 2(1900)
Bands 5(850), 4(1700/2100), 2(1900), 1(2100)
Bands 5(850), 2(1900), 1(2100)
Data Speed:
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type:
Nano SIM
Nano SIM
HD Voice:
Yes
Yes
VoLTE:
Yes
Multimedia
Headphones:
3.5mm jack
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Multiple speakers
Features:
Album art cover, Background playback
Dolby Atmos
aptX
Screen mirroring:
Wireless screen share
Wireless screen share
DLNA, Wireless screen share
Radio:
FM
FM
Additional microphone(s):
for Noise cancellation
Connectivity & Features
Bluetooth:
4.2
5.0
5.0
Wi-Fi:
802.11 a, b, g, n, ac, dual-band; Hotspot, Wi-Fi Direct
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 3.1
Features:
Mass storage device, Charging
Charging, OTG
Charging
Location:
GPS, A-GPS
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Heart rate, Barometer
Other:
UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync
NFC, ANT+
NFC, UMA (Wi-Fi Calling)
Hearing aid compatible:
M4, T4
M3, T3
M4, T3
Phone features
Notifications:
Haptic feedback, Music ringtones, Vibration
Other features:
Voice dialing, Voice commands, Voice recording, TTY/TDD
Regulatory Approval
FCC approval:
Date approved:
Dec 30, 2018
Jul 15, 2020
Oct 01, 2020
Measured SAR:
Head:
0.25 W/kg
1.18 W/kg
1.13 W/kg
Body:
0.97 W/kg
1.20 W/kg
0.57 W/kg
Simultaneous Transmission:
1.28 W/kg
3.25 W/kg
1.59 W/kg
Wireless Router:
1.28 W/kg
1.37 W/kg
0.67 W/kg
Phablet:
3.53 W/kg
Buyers information
Price:
$ 130
$ 500
$ 395
User Manual:
This is the official Samsung Galaxy A51 5G User Guide in English provided from the manufacturer.
In The Box:
Charger, Data cable, Quick start guide, Warranty guide
A to C USB Cable, Wall Adapter, SIM Pin/Ejector, Quick Start Guide, Terms & Conditions
Availability
Officially announced:
May 13, 2019
Apr 08, 2020
Oct 29, 2020
