Display
Size:
5.1 inches
6.5 inches
6.5 inches
Resolution:
2560 x 1440 pixels, 576 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
Technology:
Super AMOLED
IPS LCD
Super AMOLED
Screen-to-body:
72.30 %
80.61 %
87.37 %
Features:
Scratch-resistant glass (Corning Gorilla Glass 4), 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 820 MSM8996
Qualcomm Snapdragon 460 SM4250-AA
Samsung Exynos 9611
Processor:
Quad-core, 2200 MHz, Kryo, 64-bit, 14 nm
Octa-core, 1800 MHz, Kryo 240, 64-bit, 11 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
GPU:
Adreno 530
Adreno 610
Mali-G72 MP3
RAM:
4GB LPDDR4
3GB
4GB LPDDR4
Internal storage:
32GB, available to use: 24.5 GB
32GB
128GB, available to use: 105.9 GB
Storage expansion:
microSDXC up to 200 GB
microSDXC up to 512 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 (10)
Android (11, 10), Samsung One UI
Battery
Capacity:
3000 mAh
5000 mAh
4000 mAh
Type:
Li - Ion, Not user replaceable
Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Qualcomm Quick Charge 2.0, Qi and Powermat wireless charging
Fast charging
Fast charging
Max charge speed:
Wired: 10.0W
Camera
Rear:
Single camera
Dual camera
Quad camera
Main camera:
12 MP (OIS, PDAF)
13 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; Pixel size: 1.12 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera:
2 MP (Depth information)
12 MP (Ultra-wide)
Specifications:
Aperture size: F2.4; Pixel size: 1.75 μm
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)
1920x1080 (Full HD) (60 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
Hyperlapse, EIS
Front:
5 MP (HDR)
5 MP (HDR)
32 MP (HDR)
Video capture:
1920x1080 (Full HD)
Design
Dimensions:
5.61 x 2.74 x 0.31 inches (142.4 x 69.6 x 7.9 mm)
6.56 x 2.99 x 0.37 inches (166.59 x 75.99 x 9.36 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)
7.20 oz (204.0 g)
6.07 oz (172.0 g)
Materials:
Back: Glass (Corning Gorilla Glass 4); Frame: Aluminum
Back: Plastic
Back: Plastic; Frame: Plastic
Resistance:
Water, Dust; IP68
Splash
Biometrics:
Fingerprint (touch)
2D Face unlock, Fingerprint (touch)
2D Face unlock, In-screen fingerprint
Features:
Touch sensitive control keys
Keys:
Left: Volume control; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Black, Gold, Silver, Pink, White, Pink gold
Misty 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), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 25(1900+), 26(850+), 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), 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), 41(2600+)
Bands 38(2600), 39(1900+), 41(2600+)
UMTS:
Bands 5(850), 4(1700/2100), 2(1900), 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 Cat 9 (450/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A Cat 13/5 (400/75 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
VoLTE:
Yes
Yes
Multimedia
Headphones:
3.5mm jack
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features:
aptX-HD
Dolby Atmos
Screen mirroring:
DLNA, Wireless screen share
Wireless screen share
Wireless screen share
Radio:
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
Charging
Charging, OTG
Location:
GPS, A-GPS, Glonass
GPS, A-GPS, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other:
NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync
UMA (Wi-Fi Calling)
NFC, ANT+
Hearing aid compatible:
M4, T3
M3, T3
Regulatory Approval
FCC approval:
Date approved:
Feb 12, 2016
Nov 28, 2019
Measured SAR:
Head:
0.43 W/kg
0.89 W/kg
Body:
1.06 W/kg
1.18 W/kg
Simultaneous Transmission:
1.59 W/kg
1.56 W/kg
Wireless Router:
1.03 W/kg
1.12 W/kg
Phablet:
2.76 W/kg
Buyers information
Price:
$ 699
$ 170
$ 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, guides, SIM tool
Availability
Officially announced:
Feb 21, 2016
Jan 08, 2021
Dec 12, 2019
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