Display
Size:
3.7 inches
5.3 inches
6.5 inches
Resolution:
800 x 480 pixels, 252 PPI
2560 x 1440 pixels, 554 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
Technology:
AMOLED
IPS LCD
Super AMOLED
Screen-to-body:
54.80 %
70.15 %
87.37 %
Colors:
16 777 216
Touchscreen:
Capacitive
Capacitive, Multi-touch
Features:
Ambient light sensor, Proximity sensor
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 S1 QSD8250
Qualcomm Snapdragon 820 8996
Samsung Exynos 9611
Processor:
Single core, 1000 MHz, Scorpion
Quad-core, 2200 MHz, Kryo, 64-bit, 14 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
GPU:
Adreno 200
Adreno 530
Mali-G72 MP3
RAM:
0.5GB
4GB LPDDR4
4GB LPDDR4
ROM:
512 MB
Internal storage:
32GB, available to use: 22.4 GB
128GB, available to use: 105.9 GB
Storage expansion:
microSDHC up to 32 GB
microSDXC up to 2000 GB
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
Smartphone
OS:
Android (2.3.4, 2.2, 2.1)
Android (8.0 Oreo, 7.0 Nougat, 6.0 Marshmallow), LG UX UI
Android (11, 10), Samsung One UI
Battery
Capacity:
1400 mAh
2800 mAh
4000 mAh
Type:
Li - Ion, User replaceable
Li - Ion, User replaceable
Li - Polymer, Not user replaceable
Charging:
Qualcomm Quick Charge 3.0
Fast charging
Camera
Rear:
Single camera
Dual camera
Quad camera
Main camera:
5 MP (Autofocus)
16 MP (OIS, Laser autofocus)
48 MP (PDAF)
Specifications:
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/2.6"; Pixel size: 1.12 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera:
8 MP
12 MP (Ultra-wide)
Specifications:
Aperture size: F2.4; Focal Length: 9 mm
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:
720x480 (DVD) (20 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
Features:
HDR, Time-lapse video, Picture-taking during video recording, Video calling, Video sharing
Hyperlapse, EIS
Front:
8 MP
32 MP (HDR)
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
4.69 x 2.35 x 0.45 inches (119 x 59.8 x 11.5 mm)
5.88 x 2.91 x 0.29 inches (149.4 x 73.9 x 7.3 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
Weight:
4.59 oz (130.0 g)
5.61 oz (159.0 g)
6.07 oz (172.0 g)
Materials:
Back: Metal
Back: Plastic; Frame: Plastic
Biometrics:
Fingerprint (touch)
2D Face unlock, In-screen fingerprint
Features:
Trackball, Notification light
Keys:
Left: Volume control
Left: Volume control
Right: Volume control, Lock/Unlock key
Colors:
Gold, Gray, Silver, Pink
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Cellular
LTE (FDD):
Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+)
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+), 41(2600+)
UMTS:
Bands 5(850), 2(1900), 1(2100)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Data Speed:
HSDPA 7.2 Mbit/s, HSUPA 2 Mbit/s, UMTS
LTE-A Cat 6 (300/50 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
Multimedia
Headphones:
3.5mm jack
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features:
Album art cover, Background playback
aptX-HD
Dolby Atmos
Screen mirroring:
DLNA, Wireless screen share, SlimPort
Wireless screen share
Radio:
FM, Stereo, RDS
FM
FM
Additional microphone(s):
for Noise cancellation
for Noise cancellation
for Noise cancellation
Connectivity & Features
Bluetooth:
2.1
4.2
5.0
Wi-Fi:
802.11 b, g, n
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)
Type-C (reversible), USB 2.0
Features:
Charging
Mass storage device, Video out, Charging
Charging, OTG
Location:
A-GPS, Cell ID
GPS, A-GPS
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Compass
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other:
Computer sync, OTA sync
NFC, UMA (Wi-Fi Calling), Infrared, Tethering, Computer sync, OTA sync
NFC, ANT+
Hearing aid compatible:
M3
M3, T3
Phone features
Notifications:
Music ringtones (MP3)
Haptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone
Other features:
Voice recording
Voice dialing, Voice commands, Voice recording, TTY/TDD
Regulatory Approval
FCC approval:
Date approved:
Jan 29, 2010
Nov 28, 2019
Measured SAR:
Head:
0.96 W/kg
0.89 W/kg
Measured in:
1900 MHz
Body:
0.72 W/kg
1.18 W/kg
Measured in:
1900 MHz
Simultaneous Transmission:
1.56 W/kg
Wireless Router:
1.12 W/kg
Phablet:
2.76 W/kg
Buyers information
Price:
$ 400
User Manual:
This is the official Samsung Galaxy A51 User Guide in English provided from the manufacturer.
Availability
Officially announced:
Feb 21, 2016
Dec 12, 2019
FCC OKs Cingular\'s purchase of AT&T Wireless