Samsung Galaxy A8 (2018) vs Samsung Galaxy A51 Specs Comparison

Availability

Officially announced
Dec 19, 2017	Dec 12, 2019
Prices (MSRP)
	$400

Design

Dimensions
5.87 x 2.78 x 0.33 inches 149.2 x 70.6 x 8.4 mm	6.24 x 2.90 x 0.31 inches 158.5 x 73.6 x 7.9 mm
Weight
6.07 oz / 172.0 g	6.07 oz / 172.0 g
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Aluminum	Back: Plastic Frame: Plastic
Resistance
Water, Dust; IP68
Biometrics
Fingerprint (touch)	2D Face unlock, Optical in-screen fingerprint
Features
Notification light
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Gold, Orchid grey, Blue	Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Display

Size
5.6-inch, 75.60% screen-to-body	6.5-inch, 87.37% screen-to-body
Type
Super AMOLED	Super AMOLED, 60Hz
Resolution
2220x1080px, 18.5:9 ratio, 441 PPI	2400x1080px, 20:9 ratio, 405 PPI
Protection
Corning Gorilla Glass 4	Corning Gorilla Glass 3

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
1 (Excellent)	1.7 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Samsung Exynos 5 Octa 7885 (14 nm)	Samsung Exynos 9611 (10 nm)
Processor
Octa-core 2200 MHz ARM Cortex-A73 and ARM Cortex-A53	Octa-core 2300 MHz 4x2.3GHz Cortex-A73 4x1.7G​Hz Cortex-A53
GPU
Mali-G71	Mali-G72 MP3
Memory
4GB (LPDDR4)/64GB 4GB/32GB	4GB (LPDDR4)/128GB 6GB/128GB
Storage expansion
microSDXC up to 256 GB	microSDXC up to 512 GB
OS
Android (9.0 Pie, 8.0 Oreo, 7.1 Nougat)	Android (11, 10)

Battery

Type
3000 mAh, Li - Polymer	4000 mAh, Li - Polymer
Charging
Fast charging	Fast charging

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

5h 22min

Browsing

11h 35min

Video

8h 35min

Gaming

6h 40min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Single camera	Quad camera
Main camera
16 MP (PDAF) Aperture size: F1.7	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
1080p (30 fps) Hyperlapse, EIS, Video calling, Video sharing	4K UHD (30 fps), 1080p (120 fps), 720p (240 fps) Hyperlapse, EIS
Front
16 MP (Dual-Camera) Video capture: 1080p	32 MP (HDR) Video capture: 1080p

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
Type-C, USB 2.0	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync	NFC, ANT+

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
Album art cover, Background playback	Dolby Atmos
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM	FM
Additional microphone(s)
Noise cancellation	Noise cancellation

Cellular

4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 66	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 66, 71
4G (TDD) Bands
38, 40, 41	38, 39, 41
3G Bands
1, 2, 4, 5, 8	1, 2, 4, 5, 8
Data Speed
LTE-A Cat 11 (600/75 Mbit/s), HSPA, HSUPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes
SIM type
Nano SIM	Nano SIM

Regulatory Approval

FCC approval
Date approved: Nov 14, 2017 FCC ID value: A3LSMA530F	Date approved: Nov 28, 2019 FCC ID value: A3LSMA515FN
Measured SAR
Head: 0.26 W/kg Body: 0.76 W/kg Simultaneous Transmission: 1.54 W/kg Wireless Router: 0.98 W/kg	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

Alternative variants

with 32 GB storage

Memory	32GB
Prices (MSRP)	€500

with 128GB storage

Memory	6GB/128GB

for Verizon

4G (FDD) Bands	2, 3, 4, 5, 7, 13, 20, 28, 66
3G Bands	5, 8, 2, 1

for AT&T

4G (FDD) Bands	2, 4, 5, 12, 13, 25, 26, 66, 71
4G (TDD) Bands	41

for Sprint

4G (FDD) Bands	2, 4, 5, 12, 13, 25, 26, 66, 71
4G (TDD) Bands	41

for Europe

4G (FDD) Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66
4G (TDD) Bands	38, 40, 41
Dual SIM	Yes

Discover more

Full Specs Samsung Galaxy A8 (2018) Specs PA Review Samsung Galaxy A8 (2018) Review

Full Specs Samsung Galaxy A51 Specs PA Review Samsung Galaxy A51 Review