Display
Size:
6.0 inches
6.5 inches
6.4 inches
Resolution:
2880 x 1440 pixels, 18:9 ratio, 537 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
2400 x 1080 pixels, 20:9 ratio, 411 PPI
Technology:
P-OLED
Super AMOLED
Super AMOLED
Screen-to-body:
81.21 %
87.37 %
84.88 %
Features:
HDR support, Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
60Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
60Hz refresh rate, Ambient light sensor, Proximity sensor
Hardware
System chip:
Qualcomm Snapdragon 835 MSM8998
Samsung Exynos 9611
MediaTek Helio P65 MT6768
Processor:
Octa-core, 2450 MHz, Kryo 280, 64-bit, 10 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
Octa-core, 2000 MHz, Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm
GPU:
Adreno 540
Mali-G72 MP3
Mali-G52 MC2
RAM:
4GB LPDDR4
4GB LPDDR4
4GB LPDDR4
Internal storage:
64GB, available to use: 50 GB
128GB, available to use: 105.9 GB
64GB (eMMC 5.1), available to use: 46.2 GB
Storage expansion:
microSDXC up to 2000 GB
microSDXC up to 512 GB
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
Smartphone
OS:
Android (9.0 Pie, 8.0 Oreo, 7.1 Nougat), LG UX UI
Android (11, 10), Samsung One UI
Android (10), Samsung One UI
Battery
Capacity:
3300 mAh
4000 mAh
5000 mAh
Type:
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Qualcomm Quick Charge 3.0, Qi and Powermat wireless charging
Fast charging
Fast charging
Max charge speed:
Wired: 15.0W
Camera
Rear:
Dual camera
Quad camera
Quad camera
Main camera:
16 MP (OIS, Laser and PDAF)
48 MP (PDAF)
48 MP (PDAF)
Specifications:
Aperture size: F1.6; Focal length: 30 mm; Sensor size: 1/3.09"; Pixel size: 1 μm
Aperture size: F2.0; 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:
13 MP (Ultra-wide)
12 MP (Ultra-wide)
8 MP (Ultra-wide)
Specifications:
Aperture size: F1.9; Focal Length: 12 mm; Sensor size: 1/3.4"; Pixel size: 1 μm
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm
Third camera:
5 MP (Macro)
5 MP (Macro)
Specifications:
Aperture size: F2.4; Focal Length: 40 mm
Aperture size: F2.4
Fourth camera:
5 MP (Depth information)
5 MP (Depth information)
Specifications:
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.4
Video recording:
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
1920x1080 (Full HD) (30 fps)
Features:
HDR, Time-lapse video, Continuous autofocus, Object tracking, EIS, Video calling, Video sharing
Hyperlapse, EIS
Front:
5 MP (Wide Angle, Autofocus)
32 MP (HDR)
20 MP
Video capture:
1920x1080 (Full HD)
1920x1080 (Full HD)
1920x1080 (Full HD)
Design
Dimensions:
5.97 x 2.97 x 0.29 inches (151.7 x 75.4 x 7.39 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
6.27 x 2.88 x 0.34 inches (159.3 x 73.1 x 8.6 mm)
Weight:
5.57 oz (158.0 g)
6.07 oz (172.0 g)
6.53 oz (185.0 g)
Materials:
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Back: Plastic; Frame: Plastic
Back: Plastic
Resistance:
Water, Dust, Shock; IP68; MIL-STD-810 certified
Biometrics:
2D Face unlock, Fingerprint (touch)
2D Face unlock, In-screen fingerprint
In-screen fingerprint
Keys:
Left: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Black, Silver, Purple, Blue
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Prism Crush black, Prism Crush blue, Prism Crush red, Prism Crush white
Cellular
LTE (FDD):
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 20(800 DD), 25(1900+), 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)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD)
LTE (TDD):
Bands 38(2600), 39(1900+), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)
UMTS:
Bands 5(850), 8(900), 2(1900), 1(2100)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 5(850), 8(900), 2(1900), 1(2100)
Data Speed:
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA, 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
Dual SIM:
Yes
SIM type:
Nano SIM
Nano SIM
Nano SIM
HD Voice:
Yes
VoLTE:
Yes
Multimedia
Headphones:
3.5mm jack
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features:
32-Bit DAC, aptX-HD
Dolby Atmos
Screen mirroring:
DLNA, Wireless screen share
Wireless screen share
Wireless screen share
Radio:
FM
Additional microphone(s):
for Noise cancellation, Video recording
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 3.1
Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0
Features:
Video out, Charging
Charging, OTG
Charging, OTG
Location:
GPS, A-GPS, Glonass, Galileo
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
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)
Accelerometer, Gyroscope, Compass
Other:
NFC, UMA (Wi-Fi Calling)
NFC, ANT+
NFC
Hearing aid compatible:
M3, T3
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:
$ 400
€ 300
User Manual:
This is the official Samsung Galaxy A51 User Guide in English provided from the manufacturer.
Availability
Officially announced:
Aug 31, 2017
Dec 12, 2019
Mar 24, 2020