Display
Size:
5.1 inches
5.2 inches
6.5 inches
Resolution:
2560 x 1440 pixels, 576 PPI
1920 x 1080 pixels, 16:9 ratio, 424 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
Technology:
Super AMOLED
IPS LCD
Super AMOLED
Screen-to-body:
72.30 %
74.89 %
87.37 %
Colors:
16 777 216
Peak brightness:
500 cd/m2 (nit)
Touchscreen:
Capacitive, Multi-touch
Features:
Scratch-resistant glass (Corning Gorilla Glass 4), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 4), 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 820 MSM8996
Qualcomm Snapdragon 630 SDM630
Samsung Exynos 9611
Processor:
Quad-core, 2200 MHz, Kryo, 64-bit, 14 nm
Octa-core, 2200 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
GPU:
Adreno 530
Adreno 508
Mali-G72 MP3
RAM:
4GB LPDDR4
3GB LPDDR4
4GB LPDDR4
Internal storage:
32GB, available to use: 24.5 GB
32GB, available to use: 24 GB
128GB, available to use: 105.9 GB
Storage expansion:
microSDXC up to 200 GB
microSDXC up to 256 GB
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
Smartphone
OS:
Android (8.0 Oreo, 7.0 Nougat, 6.0 Marshmallow), Samsung TouchWiz UI
Android (9.0 Pie, 8.0 Oreo)
Android (10), Samsung One UI
Battery
Capacity:
3000 mAh
3300 mAh
4000 mAh
Type:
Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Qualcomm Quick Charge 2.0, Qi and Powermat wireless charging
Qualcomm Quick Charge 3.0
Fast charging
Camera
Rear:
Single camera
Single camera
Quad camera
Main camera:
12 MP (OIS, PDAF)
23 MP (PDAF)
48 MP (PDAF)
Specifications:
Aperture size: F1.7; Focal length: 26 mm; Sensor size: 1/2.5"; Pixel size: 1.4 μm
Aperture size: F2.0; Focal length: 24 mm; Sensor size: 1/2.3"; Pixel size: 1.12 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera:
12 MP (Ultra-wide)
Specifications:
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) (60 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (120 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
Features:
HDR, Picture-taking during video recording, Video calling, Video sharing
HDR, EIS, Video calling, Video sharing
Hyperlapse, EIS
Front:
5 MP (HDR)
8 MP (Wide Angle)
32 MP (HDR)
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
5.61 x 2.74 x 0.31 inches (142.4 x 69.6 x 7.9 mm)
5.59 x 2.76 x 0.38 inches (142 x 70 x 9.7 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
Weight:
5.36 oz (152.0 g)
6.03 oz (171.0 g)
6.07 oz (172.0 g)
Materials:
Back: Glass (Corning Gorilla Glass 4); Frame: Aluminum
Back: Plastic; Frame: Aluminum
Back: Plastic; Frame: Plastic
Resistance:
Water, Dust; IP68
Biometrics:
Fingerprint (touch)
Fingerprint (touch)
2D Face unlock, In-screen fingerprint
Features:
Touch sensitive control keys
Keys:
Left: Volume control; Right: Lock/Unlock key
Right: Volume control, Camera shutter, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Black, Gold, Silver, Pink, White, Pink gold
Black, Silver, Pink, Blue
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), 18(800 Lower), 19(800 Upper), 20(800 DD), 29(700 d), 30(2300 WCS)
Bands 1(2100), 2(1900), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 25(1900+), 28(700 APT), 29(700 d), 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), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 41(2600+)
UMTS:
850, 1700/2100, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz
Data Speed:
LTE-A Cat 9 (450/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A Cat 12/13 (600/150 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
Nano SIM
HD Voice:
Yes
VoLTE:
Yes
Multimedia
Headphones:
3.5mm jack
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features:
aptX-HD
aptX-HD
Dolby Atmos
Screen mirroring:
DLNA, Wireless screen share
Wireless screen share
Wireless screen share
Radio:
FM
FM
Additional microphone(s):
for Noise cancellation
for Noise cancellation
for Noise cancellation
Connectivity & Features
Bluetooth:
4.2
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:
microUSB, USB 2.0
Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0
Features:
Charging, OTG, Mass storage device
Mass storage device, OTG, Charging
Charging, OTG
Location:
GPS, A-GPS, Glonass
GPS, A-GPS, Glonass
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Compass, Step detector, Step counter
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other:
NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync
NFC, UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync
NFC, ANT+
Hearing aid compatible:
M4, T3
Phone features
Notifications:
Haptic feedback, Music ringtones, Flight mode, Silent mode, Speakerphone
Other features:
Voice dialing, Voice commands, Voice recording, TTY/TDD
Regulatory Approval
FCC approval:
Date approved:
Feb 12, 2016
Nov 19, 2018
Nov 28, 2019
Measured SAR:
Head:
0.43 W/kg
0.81 W/kg
0.89 W/kg
Body:
1.06 W/kg
1.07 W/kg
1.18 W/kg
Simultaneous Transmission:
1.59 W/kg
1.54 W/kg
1.56 W/kg
Wireless Router:
1.03 W/kg
1.14 W/kg
1.12 W/kg
Phablet:
2.76 W/kg
Buyers information
Price:
$ 699
$ 400
User Manual:
This is the official Samsung Galaxy A51 User Guide in English provided from the manufacturer.
In The Box:
Charger, USB Type-C cable for charging and user documentation
Availability
Officially announced:
Feb 21, 2016
Jan 08, 2018
Dec 12, 2019
