Display
Size:
6.5 inches
6.2 inches
Resolution:
2400 x 1080 pixels, 20:9 ratio, 405 PPI
2340 x 1080 pixels, 19.5:9 ratio, 416 PPI
Technology:
Super AMOLED
OLED
Refresh rate:
60Hz
60Hz
Screen-to-body:
87.37 %
82.94 %
Features:
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Hardware
System chip:
Samsung Exynos 9611 (10 nm)
Qualcomm Snapdragon 765G SM7250-AB (7 nm)
Processor:
Octa-core, 2300 MHz, 4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53, 64-bit
Octa-core, 2400 MHz, Kryo 475, 64-bit
GPU:
Mali-G72 MP3
Adreno 620
RAM:
4GB LPDDR4
6GB LPDDR4
Internal storage:
128GB, available to use: 105.9 GB
128GB (UFS 2.1), not expandable
Storage expansion:
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
Android (11, 10), Samsung One UI
Android (12, 11)
Battery
Capacity:
4000 mAh
3885 mAh
Type:
Li - Polymer, Not user replaceable
Not user replaceable
Charging:
Fast charging
USB Power Delivery
Max charge speed:
Wired: 18.0W
Camera
Rear:
Quad camera
Dual camera
Main camera:
48 MP (PDAF)
12.2 MP (OIS, PDAF)
Specifications:
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.7; Focal length: 28 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Second camera:
12 MP (Ultra-wide)
16 MP (Ultra-wide)
Specifications:
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Aperture size: F2.2; Pixel size: 1 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) (120 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps)
Features:
Hyperlapse, EIS
OIS, Time-lapse video, EIS
Front:
32 MP (HDR)
8 MP (Dual-Camera, Time-of-Flight (ToF))
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
6.06 x 2.91 x 0.32 inches (153.9 x 74.0 x 8.2 mm)
Weight:
6.07 oz (172.0 g)
5.93 oz (168.0 g)
Materials:
Back: Plastic; Frame: Plastic
Back: Plastic
Biometrics:
2D Face unlock, In-screen fingerprint
Fingerprint (touch)
Keys:
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Just black, Clearly white
Cellular
5G:
n1, n2, n5, n12, n25, n28, n41, n66, n71, n78, Sub-6
LTE (FDD):
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)
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), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 32(1500 L-band), 66(AWS-3), 71(600)
LTE (TDD):
Bands 38(2600), 39(1900+), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500), 46, 48(3600)
UMTS:
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed:
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM:
Yes
SIM type:
Nano SIM
Nano SIM, eSIM
HD Voice:
Yes
Multimedia
Headphones:
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Multiple speakers
Features:
Dolby Atmos
aptX, aptX-HD
Screen mirroring:
Wireless screen share
Wireless screen share
Radio:
FM
Additional microphone(s):
for Noise cancellation
for Noise cancellation
Connectivity & Features
Bluetooth:
5.0
5.0
Wi-Fi:
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
USB:
Type-C (reversible), USB 2.0
Type-C (reversible), USB 3.1
Features:
Charging, OTG
Charging
Location:
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Barometer
Other:
NFC, ANT+
NFC
Hearing aid compatible:
M3, T4
Regulatory Approval
FCC approval:
Date approved:
Nov 28, 2019
Sep 01, 2020
FCC ID value:
A3LSMA515FN
A4RG025E
Measured SAR:
Head:
0.89 W/kg
1.20 W/kg
Body:
1.18 W/kg
1.20 W/kg
Simultaneous Transmission:
1.56 W/kg
1.57 W/kg
Wireless Router:
1.12 W/kg
1.00 W/kg
Phablet:
2.76 W/kg
Buyers information
Price:
$ 400
$ 500
User Manual:
This is the official Samsung Galaxy A51 User Guide in English provided from the manufacturer.
In The Box:
18W USB-C power adapter, 1 m USB-C to USB-C cable (USB 2.0), Quick Start Guide, Quick Switch Adapter SIM tool
Availability
Officially announced:
Dec 12, 2019
Sep 30, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless