Display
Size:
6.2 inches
6.4 inches
6.5 inches
Resolution:
2270 x 1080 pixels, 19:9 ratio, 405 PPI
2300 x 1080 pixels, 19.17:9 ratio, 397 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
Technology:
IPS LCD
IPS LCD
Super AMOLED
Screen-to-body:
81.52 %
84.75 %
87.37 %
Features:
Scratch-resistant glass (Corning Gorilla Glass 3), 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 636 SDM636
Qualcomm Snapdragon 665 SM6125
Samsung Exynos 9611
Processor:
Octa-core, 1800 MHz, Kryo 260, 64-bit, 14 nm
Octa-core, 2000 MHz, Kryo 260, 64-bit, 11 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
GPU:
Adreno 509
Adreno 610
Mali-G72 MP3
RAM:
4GB LPDDR4
4GB
4GB LPDDR4
Internal storage:
64GB
128GB
128GB, available to use: 105.9 GB
Storage expansion:
microSDXC up to 512 GB
microSDXC up to 512 GB
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
Smartphone
OS:
Android (10, 9.0 Pie)
Android (10)
Android (11, 10), Samsung One UI
Battery
Capacity:
3000 mAh
4000 mAh
4000 mAh
Type:
Not user replaceable
Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Qualcomm Quick Charge 4, USB Power Delivery, Motorola TurboPower
Motorola TurboPower
Fast charging
Camera
Rear:
Dual camera
Quad camera
Quad camera
Main camera:
16 MP (OIS, PDAF)
48 MP (Laser and PDAF)
48 MP (PDAF)
Specifications:
Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.6"; Pixel size: 1.22 μm
Aperture size: F1.7; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera:
5 MP (Depth information)
16 MP (Ultra-wide)
12 MP (Ultra-wide)
Specifications:
Aperture size: F2.2
Aperture size: F2.2; Pixel size: 2 μm
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Third camera:
2 MP (Macro)
5 MP (Macro)
Specifications:
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.75 μm
Aperture size: F2.4; Focal Length: 40 mm
Fourth camera:
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), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
Features:
Time-lapse video, Hyperlapse, EIS, Video calling, Video sharing
Time-lapse video, Hyperlapse, EIS
Hyperlapse, EIS
Front:
12 MP (HDR)
16 MP (EIS, HDR)
32 MP (HDR)
Video capture:
3840x2160 (4K UHD) (30 fps)
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
6.18 x 2.96 x 0.33 inches (157 x 75.3 x 8.3 mm)
6.24 x 2.98 x 0.36 inches (158.55 x 75.8 x 9.2 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
Weight:
6.21 oz (176.0 g)
6.77 oz (192.0 g)
6.07 oz (172.0 g)
Materials:
Back: Glass (Corning Gorilla Glass); Frame: Aluminum
Back: Plastic; Frame: Aluminum
Back: Plastic; Frame: Plastic
Resistance:
Splash
Splash
Biometrics:
2D Face unlock, Fingerprint (touch)
Fingerprint (touch)
2D Face unlock, In-screen fingerprint
Features:
Stylus
Keys:
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Blue, Red
Mystic indigo
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), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT)
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+), 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), 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+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 41(2600+)
UMTS:
Bands 6(800), 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
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 13/5 (400/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
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
SIM type:
Nano SIM
Nano SIM
Nano SIM
Multimedia
Headphones:
3.5mm jack
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Multiple speakers
Earpiece, Multiple speakers
Earpiece, Loudspeaker
Features:
Dolby Mobile
Dolby Mobile
Dolby Atmos
Screen mirroring:
Wireless screen share
Wireless screen share
Wireless screen share
Radio:
FM
FM
FM
Additional microphone(s):
for Noise cancellation
for Noise cancellation
for Noise cancellation
Connectivity & Features
Bluetooth:
5.0
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; 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
Type-C (reversible), USB 2.0
Features:
Charging, OTG, Mass storage device
Charging
Charging, OTG
Location:
GPS, A-GPS, Glonass, Galileo, 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
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other:
NFC
NFC, ANT+
Regulatory Approval
Measured SAR:
Head:
0.89 W/kg
Body:
1.18 W/kg
Simultaneous Transmission:
1.56 W/kg
Wireless Router:
1.12 W/kg
Phablet:
2.76 W/kg
Buyers information
Price:
$ 300
$ 400
User Manual:
This is the official Samsung Galaxy A51 User Guide in English provided from the manufacturer.
In The Box:
27W TurboPower charger, USB-C to USB-C cable, SIM pin, Guides, Earphones (for selected countries), Protect cover (for selected countries)
Charger, USB Type-C cable, guides, SIM tool
Availability
Officially announced:
Feb 07, 2019
Feb 07, 2020
Dec 12, 2019
