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Samsung Galaxy S8 vs Samsung Galaxy A51 5G Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Comparison mode:
Specs Size
Differences only
9.0
Samsung Galaxy S8
Samsung Galaxy A51 5G
Samsung Galaxy S8 Samsung Galaxy A51 5G
Released · Apr 21, 2017
Released · Apr 29, 2020
5.8-inch
6.5-inch
Single camera
Quad camera
4GB · 64GB
6GB · 128GB
3000 mAh
4500 mAh
Check prices

Design

Dimensions
5.86 x 2.68 x 0.31 inches
148.9 x 68.1 x 8.0 mm 		6.26 x 2.90 x 0.34 inches
158.9 x 73.6 x 8.7 mm
Weight
5.47 oz (155.0 g) 6.60 oz (187.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5)
Frame: Aluminum 		Back: Plastic
Frame: Aluminum
Resistance
Water, Dust; IP68
Biometrics
Iris scanner, 2D Face unlock, Fingerprint (touch) 2D Face unlock, Optical in-screen fingerprint
Keys
Left: Volume control, Other; 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 Prism cube black

Display

Size
5.8-inch 6.5-inch
Resolution
2960x1440px, 18.5:9 ratio, 570 PPI 2400x1080px, 20:9 ratio, 405 PPI
Technology
Super AMOLED Super AMOLED
Refresh rate
60Hz
Screen-to-body
84.26 % 87.37 %
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 835 MSM8998 (10 nm) Samsung Exynos 980 (8 nm)
Processor
Octa-core
2350 MHz
Kryo 280 		Octa-core
2x 2.2GHz Cortex-A77 + 6x 1.8GHz Cortex-A55
GPU
Adreno 540 Mali-G76 MP5
RAM
4GB (LPDDR4) 6GB (LPDDR4)
Internal storage
64GB 128GB, available to use: 105.3 GB
Storage expansion
microSDXC up to 256 GB microSDXC up to 1000 GB
OS
Android (9.0 Pie, 8.0 Oreo, 7.0 Nougat), Samsung One UI Android (11, 10), Samsung One UI

Battery

Capacity
3000 mAh 4500 mAh
Type
Li - Ion Li - Polymer
Charging
Qualcomm Quick Charge 2.0, Qi and Powermat wireless charging Fast charging
Charge speed
Wired: 25.0W

Camera

Rear
Single camera Quad camera
Main camera
12 MP (OIS, PDAF)
Aperture size: F1.7
Focal length: 26 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm 		48 MP (PDAF)
Aperture size: F2.0
Focal length: 26 mm
Sensor size: 1/2"
Pixel size: 0.8 μm
Second camera
12 MP (Ultra-wide)
Aperture size: F2.2
Focal Length: 13 mm
Pixel size: 1.12 μm
Third camera
5 MP (Macro)
Aperture size: F2.4
Focal Length: 40 mm
Fourth camera
5 MP (Depth information)
Aperture size: F2.2
Sensor size: 1/5"
Pixel size: 1.12 μm
Flash
LED LED
Video recording
3840x2160 (4K UHD) (30 fps), 2560x1440 (QHD), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (240 fps)
HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video light, EIS, Video calling, Video sharing 		3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (480 fps)
Hyperlapse, EIS
Front
8 MP (Wide Angle, Autofocus, HDR), Video capture: 2560x1440 (QHD) 32 MP (HDR), Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0, Yes 5.0
WLAN
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, USB 3.1 Type-C, USB 2.0
Hearing aid compatible
M3/T3 M3/T3
Location
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), Barometer Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other
NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync NFC, ANT+

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Loudspeaker
Features
32-Bit DAC, aptX-HD Dolby Atmos
Screen mirroring
DLNA,Wireless screen share,MHL Wireless screen share
Radio
FM
Additional microphone(s)
Noise cancellation, Video recording Noise cancellation

Cellular

5G
Bands n41, n71, SA, NSA
4G (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 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), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+) Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 5(850), 8(900) Bands 1(2100), 2(1900), 4(1700/2100), 5(850)
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 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type
Nano SIM
HD Voice
Yes Yes

Regulatory Approval

FCC approval
Date approved: Apr 06, 2017
FCC ID value: A3LSMG950U 		Date approved: Jul 15, 2020
FCC ID value: A3LSMA516U
Measured SAR
Head: 0.49 W/kg
Body: 0.48 W/kg
Simultaneous Transmission: 1.53 W/kg
Wireless Router: 0.46 W/kg 		Head: 1.18 W/kg
Body: 1.20 W/kg
Simultaneous Transmission: 3.25 W/kg
Wireless Router: 1.37 W/kg

Buyers information

MSRP
$ 500
In The Box
A to C USB Cable, Wall Adapter, SIM Pin/Ejector, Quick Start Guide, Terms & Conditions

Availability

Officially announced
Mar 29, 2017 Apr 08, 2020

Alternative variants

International version
System chip Samsung Exynos 9 Octa 8895 (10 nm)
Processor Octa-core
2300 MHz
Exynos M2 "Mongoose" and ARM Cortex-A53
GPU Mali-G71 MP20
4G (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), 32(1500 L-band), 66(AWS-3)
4G (TDD) Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
FCC approval Date approved: Sep 05, 2017
FCC ID value: A3LSMG950F
Measured SAR Head: 0.38 W/kg
Body: 0.75 W/kg
Simultaneous Transmission: 1.55 W/kg
Wireless Router: 1.09 W/kg
with 8GB RAM
RAM 8GB
for T-Mobile
4G (FDD) Bands 2(1900), 4(AWS-1), 5(850), 12(700 a)
3G Bands 5(850), 4(1700/2100), 2(1900), 1(2100)
VoLTE Yes
for Europe
Colors Prism cube black, Prism cube white
5G Bands n41, n78, SA, NSA
4G (FDD) Bands 1(2100), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 20(800 DD), 28(700 APT)
4G (TDD) Bands 38(2600), 40(2300), 41(2600+)
3G Bands 5(850), 8(900), 2(1900), 1(2100)
Dual SIM Yes
SIM type Nano SIM
for Verizon Wireless
4G (FDD) Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 13(700 c), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT)
4G (TDD) Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
3G Bands 5(850), 8(900), 2(1900), 1(2100)
for Verizon
System chip Qualcomm Snapdragon 765G SM7250-AB (7 nm)
Processor Octa-core
2400 MHz
Kryo 475
GPU Adreno 620
Colors Prism bricks blue
5G Bands n260, n261, mmWave
4G (FDD) Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 20(800 DD), 28(700 APT), 66(AWS-3)
3G Bands 5(850), 8(900), 2(1900), 1(2100)
FCC approval Date approved: Jul 20, 2020
FCC ID value: A3LSMA516V
Measured SAR Head: 0.32 W/kg
Body: 1.32 W/kg
Simultaneous Transmission: 3.01 W/kg
Wireless Router: 1.37 W/kg
Phablet: 3.91 W/kg
MSRP $ 550
for U.S. Cellular
4G (FDD) Bands 2(1900), 4(AWS-1), 5(850), 8(900), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 25(1900+)
4G (TDD) Bands 38(2600), 39(1900+), 40(2300)
Data Speed LTE-A, HSPA, UMTS
with Dual SIM
System chip Samsung Exynos 9 Octa 8895 (10 nm)
Processor Octa-core
2500 MHz
Exynos M2 "Mongoose"and ARM Cortex-A53
GPU Mali-G71 MP20
Dual SIM Yes
FCC OKs Cingular\'s purchase of AT&T Wireless