Display
Size:
5.8 inches
6.7 inches
6.5 inches
Resolution:
2960 x 1440 pixels, 18.5:9 ratio, 570 PPI
3040 x 1440 pixels, 19:9 ratio, 502 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
Technology:
Super AMOLED
Dynamic AMOLED
Super AMOLED
Screen-to-body:
84.26 %
89.26 %
87.37 %
Features:
HDR video support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
HDR video support, Scratch-resistant glass (Corning Gorilla Glass 6), 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 835 MSM8998
Qualcomm Snapdragon 855
Samsung Exynos 9611
Processor:
Octa-core, 2350 MHz, Kryo 280, 64-bit, 10 nm
Octa-core, 2840 MHz, Kryo 485, 64-bit, 7 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
GPU:
Adreno 540
Adreno 640
Mali-G72 MP3
RAM:
4GB LPDDR4
8GB
4GB LPDDR4
Internal storage:
64GB
256GB, available to use: 225 GB, not expandable
128GB, available to use: 105.9 GB
Storage expansion:
microSDXC up to 256 GB
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
Smartphone
OS:
Android (9.0 Pie, 8.0 Oreo, 7.0 Nougat), Samsung One UI
Android (10, 9.0 Pie), Samsung One UI
Android (10), Samsung One UI
Battery
Capacity:
3000 mAh
4500 mAh
4000 mAh
Type:
Li - Ion, Not user replaceable
Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Qualcomm Quick Charge 2.0, Qi and Powermat wireless charging
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Fast charging
Camera
Rear:
Single camera
Quad camera
Quad camera
Main camera:
12 MP (OIS, PDAF)
12 MP (OIS, PDAF)
48 MP (PDAF)
Specifications:
Aperture size: F1.7; Focal length: 26 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.5/F2.4; Focal length: 26 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera:
12 MP (Telephoto, OIS, PDAF)
12 MP (Ultra-wide)
Specifications:
Optical zoom: 2x; Aperture size: F2.4; Focal Length: 52 mm; Sensor size: 1/3.6"; Pixel size: 1 μm
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Third camera:
16 MP (Ultra-wide)
5 MP (Macro)
Specifications:
Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/3.1"; Pixel size: 1 μm
Aperture size: F2.4; Focal Length: 40 mm
Fourth camera:
0.3 MP VGA (ToF 3D depth sensing)
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), 2560x1440 (QHD), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
Features:
HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video light, EIS, Video calling, Video sharing
HDR, Time-lapse video, EIS, Video calling, Video sharing
Hyperlapse, EIS
Front:
8 MP (Wide Angle, Autofocus, HDR)
10 MP (Dual-Camera, Autofocus, HDR)
32 MP (HDR)
Video capture:
2560x1440 (QHD)
3840x2160 (4K UHD)
1920x1080 (Full HD)
Design
Dimensions:
5.86 x 2.68 x 0.31 inches (148.9 x 68.1 x 8.0 mm)
6.40 x 3.04 x 0.31 inches (162.6 x 77.1 x 7.94 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
Weight:
5.47 oz (155.0 g)
6.98 oz (198.0 g)
6.07 oz (172.0 g)
Materials:
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Back: Glass (Corning Gorilla Glass 6); Frame: Aluminum
Back: Plastic; Frame: Plastic
Resistance:
Water, Dust; IP68
Water, Dust; IP68
Biometrics:
Iris scanner, 2D Face unlock, Fingerprint (touch)
2D Face unlock, Ultrasonic in-screen fingerprint
2D Face unlock, In-screen fingerprint
Keys:
Left: Volume control, Other; Right: Lock/Unlock key
Left: Volume control; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Midnight black, Orchid gray, Arctic silver, Coral blue, Maple gold, Rose pink, Burgundy red
Crown silver, Majestic black, Royal gold
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Cellular
5G:
n260, n261
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), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3)
Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 18(800 Lower), 19(800 Upper), 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), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
Bands 38(2600), 39(1900+), 41(2600+)
UMTS:
850, 900, 1900, 2100 MHz
850, 900, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz
Data Speed:
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
LTE-A Pro Cat 20 (2000/150 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, Loudspeaker
Earpiece, Multiple speakers
Earpiece, Loudspeaker
Features:
32-Bit DAC, aptX-HD
32-Bit DAC, Dolby Atmos, aptX-HD
Dolby Atmos
Screen mirroring:
DLNA, Wireless screen share, MHL
Wireless screen share
Wireless screen share
Radio:
FM
FM
Additional microphone(s):
for Noise cancellation, Video recording
for Noise cancellation
for Noise cancellation
Connectivity & Features
Bluetooth:
5.0, EDR
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, ax, 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 3.1
Type-C (reversible), USB 3.1
Type-C (reversible), USB 2.0
Features:
Charging, Video out, Mass storage device
Charging, OTG, Video out
Charging, OTG
Location:
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, 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, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other:
NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync
NFC, ANT+, UMA (Wi-Fi Calling)
NFC, ANT+
Hearing aid compatible:
M3, T3
M4, T3
Regulatory Approval
FCC approval:
Date approved:
Apr 06, 2017
Apr 05, 2019
Nov 28, 2019
Measured SAR:
Head:
0.49 W/kg
0.30 W/kg
0.89 W/kg
Body:
0.48 W/kg
1.11 W/kg
1.18 W/kg
Simultaneous Transmission:
1.53 W/kg
1.59 W/kg
1.56 W/kg
Wireless Router:
0.46 W/kg
1.39 W/kg
1.12 W/kg
Phablet:
3.98 W/kg
2.76 W/kg
Buyers information
Price:
$ 1300
$ 400
User Manual:
This is the official Samsung Galaxy A51 User Guide in English provided from the manufacturer.
In The Box:
Samsung special screen protector ( already on device ), Wall adapter/USB cable/USB connector, Quick reference guide, Important consumer safety information, Product safety, and warranty brochure
Availability
Officially announced:
Mar 29, 2017
Feb 20, 2019
Dec 12, 2019
