Display
Size:
5.5 inches
5.5 inches
6.5 inches
Resolution:
2560 x 1440 pixels, 534 PPI
1920 x 1080 pixels, 401 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
Technology:
AMOLED
AMOLED
Super AMOLED
Screen-to-body:
71.82 %
72.18 %
87.37 %
Features:
Ambient light sensor, Proximity sensor
Oleophobic coating, Scratch-resistant glass (Dragontrail), 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 652 8976
Qualcomm Snapdragon 820 MSM8996
Samsung Exynos 9611
Processor:
Octa-core, 1800 MHz, ARM Cortex-A72 and ARM Cortex-A53, 64-bit
Quad-core, 2150 MHz, Kryo, 64-bit
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
GPU:
Adreno 510
Adreno 530
Mali-G72 MP3
RAM:
3GB LPDDR3
4GB LPDDR4
4GB LPDDR4
Internal storage:
32GB, available to use: 25 GB
64GB
128GB, available to use: 105.9 GB
Storage expansion:
microSDXC up to 512 GB
microSDXC up to 512 GB
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
Smartphone
OS:
Android (6.0 Marshmallow)
Windows (10 Mobile)
Android (11, 10), Samsung One UI
Battery
Capacity:
3000 mAh
3000 mAh
4000 mAh
Type:
Not user replaceable
Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Qualcomm Quick Charge 2.0
Fast charging
Fast charging
Camera
Rear:
Single camera
Single camera
Quad camera
Main camera:
16 MP (Autofocus)
21 MP (PDAF)
48 MP (PDAF)
Specifications:
Aperture size: F2.2; Sensor size: 1/2.4"; 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:
2560x1440 (QHD), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (120 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
Features:
Video calling
Video calling, Video sharing
Hyperlapse, EIS
Front:
8 MP (Flash)
8 MP (Wide Angle, Flash)
32 MP (HDR)
Video capture:
1920x1080 (Full HD)
Design
Dimensions:
6.06 x 2.97 x 0.28 inches (153.9 x 75.4 x 6.99 mm)
6.05 x 2.97 x 0.28 inches (153.7 x 75.4 x 6.99 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
Weight:
5.26 oz (149.0 g)
5.36 oz (152.0 g)
6.07 oz (172.0 g)
Materials:
Back: Glass; Frame: Metal
Back: Glass; Frame: Metal
Back: Plastic; Frame: Plastic
Biometrics:
Fingerprint (touch)
2D Face unlock, In-screen fingerprint
Keys:
Right: Volume control, Lock/Unlock key
Left: Lock/Unlock key; Right: Volume control, Other
Right: Volume control, Lock/Unlock key
Colors:
Black
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Cellular
LTE (FDD):
Bands 1(2100), 3(1800), 7(2600), 8(900), 20(800 DD), 28(700 APT)
Bands 2(1900), 4(AWS-1), 12(700 a)
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), 8(900), 2(1900), 1(2100)
Bands 5(850), 4(1700/2100), 2(1900)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Data Speed:
LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
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
Nano SIM
HD Voice:
Yes
Yes
Multimedia
Headphones:
3.5mm jack
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Multiple speakers
Earpiece, Multiple speakers
Earpiece, Loudspeaker
Features:
Album art cover, Background playback
Album art cover, Background playback
Dolby Atmos
Screen mirroring:
Wireless screen share
Wireless screen share
Radio:
FM, RDS
FM
Additional microphone(s):
for Noise cancellation
for Noise cancellation
for Noise cancellation
Connectivity & Features
Bluetooth:
4.2
4.1
5.0
Wi-Fi:
802.11 a, b, g, n, ac, dual-band; 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:
microUSB, USB 2.0
Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0
Features:
Mass storage device, Charging
Mass storage device, OTG, Charging
Charging, OTG
Location:
GPS, A-GPS
GPS, A-GPS
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other:
NFC, Tethering, Computer sync, OTA sync
Tethering, Computer sync, OTA sync
NFC, ANT+
Hearing aid compatible:
M4, T3
Regulatory Approval
FCC approval:
Date approved:
Jun 01, 2016
Nov 28, 2019
Measured SAR:
Head:
0.80 W/kg
0.89 W/kg
Body:
0.27 W/kg
1.18 W/kg
Simultaneous Transmission:
1.59 W/kg
1.56 W/kg
Wireless Router:
0.27 W/kg
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 20, 2016
Nov 01, 2016
Dec 12, 2019
