Display
Size:
6.3 inches
6.5 inches
Resolution:
2220 x 1080 pixels, 18.5:9 ratio, 392 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
Technology:
Super AMOLED
Super AMOLED
Screen-to-body:
80.51 %
87.37 %
Features:
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 660 SDM660
Samsung Exynos 9611
Processor:
Octa-core, 2200 MHz, Kryo 260, 64-bit, 14 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
GPU:
Adreno 512
Mali-G72 MP3
RAM:
6GB LPDDR4
4GB LPDDR4
Internal storage:
128GB, available to use: 108.9 GB
128GB, available to use: 105.9 GB
Storage expansion:
microSDXC up to 512 GB
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI
Android (11, 10), Samsung One UI
Battery
Capacity:
3800 mAh
4000 mAh
Type:
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Samsung Adaptive Fast Charging
Fast charging
Camera
Rear:
Quad camera
Quad camera
Main camera:
24 MP (PDAF)
48 MP (PDAF)
Specifications:
Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.8"; Pixel size: 0.9 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera:
10 MP (Telephoto, Autofocus)
12 MP (Ultra-wide)
Specifications:
Optical zoom: 2.0x; Aperture size: F2.4; Focal Length: 52 mm; Sensor size: 1/3.9"; Pixel size: 1 μm
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Third camera:
8 MP (Ultra-wide)
5 MP (Macro)
Specifications:
Aperture size: F2.4; Focal Length: 12 mm; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F2.4; Focal Length: 40 mm
Fourth camera:
5 MP (Depth information)
5 MP (Depth information)
Specifications:
Aperture size: F2.2; Focal Length: 24 mm; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Video recording:
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:
Hyperlapse, Continuous autofocus, EIS, Video calling, Video sharing
Hyperlapse, EIS
Front:
24 MP
32 MP (HDR)
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
6.40 x 3.03 x 0.31 inches (162.5 x 77 x 7.8 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
Weight:
6.46 oz (183.0 g)
6.07 oz (172.0 g)
Materials:
Back: Glass; Frame: Metal
Back: Plastic; Frame: Plastic
Biometrics:
2D Face unlock, Fingerprint (touch)
2D Face unlock, In-screen fingerprint
Keys:
Left: Other; Right: Volume control, Lock/Unlock key; Back: Other
Right: Volume control, Lock/Unlock key
Colors:
Caviar black, Lemonade blue, Bubblegum pink
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), 13(700 c), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 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), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 41(2600+)
UMTS:
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:
LTE-A Cat 9 (450/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
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
FM
Additional microphone(s):
for Noise cancellation
Connectivity & Features
Bluetooth:
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
USB:
Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0
Features:
Charging, Mass storage device
Charging, OTG
Location:
GPS, A-GPS, Glonass, Galileo, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other:
NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync
NFC, ANT+
Regulatory Approval
FCC approval:
Date approved:
Oct 18, 2018
Nov 28, 2019
FCC ID value:
A3LSMA920F
A3LSMA515FN
Measured SAR:
Head:
0.24 W/kg
0.89 W/kg
Body:
0.84 W/kg
1.18 W/kg
Simultaneous Transmission:
1.58 W/kg
1.56 W/kg
Wireless Router:
1.40 W/kg
1.12 W/kg
Phablet:
3.95 W/kg
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.
In The Box:
Charger, USB cable, Headphones, SIM removal tool, Documentation
Availability
Officially announced:
Oct 11, 2018
Dec 12, 2019
FCC OKs Cingular\'s purchase of AT&T Wireless