Display
Size:
5.9 inches
6.5 inches
Resolution:
2160 x 1080 pixels, 407 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
Technology:
IPS LCD
Super AMOLED
Screen-to-body:
77.14 %
87.37 %
Colors:
16 777 216
Touchscreen:
Capacitive, Multi-touch
Features:
Ambient light sensor, Proximity sensor
60Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Hardware
System chip:
HiSilicon Kirin 659
Samsung Exynos 9611
Processor:
Octa-core, 2360 MHz, ARM Cortex-A53, 64-bit, 16 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
GPU:
Mali-T830 MP2
Mali-G72 MP3
RAM:
3GB LPDDR3
4GB LPDDR4
Internal storage:
32GB
128GB, available to use: 105.9 GB
Storage expansion:
microSDXC up to 256 GB
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
Android (8.0 Oreo, 7.0 Nougat), Huawei Emotion UI
Android (11, 10), Samsung One UI
Battery
Capacity:
3340 mAh
4000 mAh
Type:
Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Fast charging
Camera
Rear:
Dual camera
Quad camera
Main camera:
16 MP (PDAF)
48 MP (PDAF)
Specifications:
Aperture size: F2.2; Focal length: 26 mm; Sensor size: 1/2.9"; Pixel size: 1.25 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: F2.2; 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:
1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
Features:
Time-lapse video, Video calling, Video sharing
Hyperlapse, EIS
Front:
8 MP
32 MP (HDR)
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
6.16 x 2.96 x 0.30 inches (156.5 x 75.3 x 7.6 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
Weight:
5.82 oz (165.0 g)
6.07 oz (172.0 g)
Materials:
Back: Aluminum
Back: Plastic; Frame: Plastic
Biometrics:
Fingerprint (touch)
2D Face unlock, In-screen fingerprint
Features:
Notification light
Keys:
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Black, Gold, Blue, Red
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Cellular
LTE (FDD):
Bands 2(1900), 4(AWS-1), 5(850), 7(2600), 12(700 a), 17(700 b)
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 40(2300)
Bands 38(2600), 39(1900+), 41(2600+)
UMTS:
Bands 5(850), 4(1700/2100), 2(1900), 1(2100)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Data Speed:
LTE, HSPA, HSUPA
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM:
Shared with microSD
SIM type:
Nano SIM
Nano SIM
Multimedia
Headphones:
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features:
Album art cover, Background playback
Dolby Atmos
Screen mirroring:
Wireless screen share
Wireless screen share
Radio:
FM
Additional microphone(s):
for Noise cancellation
Connectivity & Features
Bluetooth:
4.1
5.0
Wi-Fi:
802.11 b, g, n; 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
Features:
Mass storage device, Charging
Charging, OTG
Location:
GPS, A-GPS, Glonass
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other:
VoIP, Tethering, Computer sync, OTA sync
NFC, ANT+
Phone features
Other features:
Voice dialing, Voice commands, Voice recording
Regulatory Approval
FCC approval:
Date approved:
Nov 22, 2017
Nov 28, 2019
Measured SAR:
Head:
1.11 W/kg
0.89 W/kg
Body:
1.11 W/kg
1.18 W/kg
Simultaneous Transmission:
1.43 W/kg
1.56 W/kg
Wireless Router:
1.27 W/kg
1.12 W/kg
Phablet:
2.76 W/kg
Buyers information
Price:
$ 200
$ 400
User Manual:
This is the official Samsung Galaxy A51 User Guide in English provided from the manufacturer.
Availability
Officially announced:
Dec 05, 2017
Dec 12, 2019
FCC OKs Cingular\'s purchase of AT&T Wireless