Samsung Galaxy A7 (2018) vs Samsung Galaxy A51 Specs Comparison

Availability

Officially announced
Sep 20, 2018	Dec 12, 2019
Prices (MSRP)
	$400

Design

Dimensions
6.29 x 3.02 x 0.30 inches 159.8 x 76.8 x 7.5 mm	6.24 x 2.90 x 0.31 inches 158.5 x 73.6 x 7.9 mm
Weight
5.93 oz / 168.0 g	6.07 oz / 172.0 g
Materials
Back: Glass (Corning Gorilla Glass 3) Frame: Plastic	Back: Plastic Frame: Plastic
Biometrics
Fingerprint (touch)	2D Face unlock, Optical in-screen fingerprint
Features
Notification light
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Gold, Pink, Blue	Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Display

Size
6.0-inch, 74.55% screen-to-body	6.5-inch, 87.37% screen-to-body
Type
Super AMOLED	Super AMOLED, 60Hz
Resolution
2220x1080px, 18.5:9 ratio, 411 PPI	2400x1080px, 20:9 ratio, 405 PPI
Colors
16 777 216
Protection
Corning Gorilla Glass 3	Corning Gorilla Glass 3

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
1.8 (Good)	1.7 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Samsung Exynos 7 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 MP2	Mali-G72 MP3
Memory
6GB (LPDDR4)/128GB 4GB/64GB 4GB/128GB	4GB (LPDDR4)/128GB 6GB/128GB
Storage expansion
microSDXC up to 512 GB	microSDXC up to 512 GB
OS
Android (9.0 Pie, 8.0 Oreo)	Android (11, 10)

Battery

Type
3300 mAh	4000 mAh, Li - Polymer
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
Triple camera	Quad camera
Main camera
24 MP (PDAF, CMOS image sensor) Aperture size: F1.7 Focal length: 26 mm Sensor size: 1/2.8" Pixel size: 0.9 μm	48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide, Autofocus, CMOS image sensor, BSI sensor) Aperture size: F2.4 Focal Length: 18 mm Sensor size: 1/4" Pixel size: 1.12 μm	12 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 13 mm Pixel size: 1.12 μm
Third camera
5 MP (Depth information) Aperture size: F2.2 Focal Length: 24 mm Sensor size: 1/5" Pixel size: 1.12 μm	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
24 MP (Flash) Video capture: 1080p	32 MP (HDR) Video capture: 1080p

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
a,b,g,n,ac,dual-band Hotspot, Wi-Fi Direct 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
microUSB, USB 2.0	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), 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+

Discover more

Full Specs Samsung Galaxy A7 (2018) Specs PA Review Samsung Galaxy A7 (2018) Review

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

Multimedia

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

Cellular

4G (FDD) Bands
1, 3, 5, 7, 8, 20	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
5, 8, 2, 1	1, 2, 4, 5, 8
Data Speed
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type
Nano SIM	Nano SIM
VoLTE
Yes

Phone Features

Notifications
Haptic feedback, Music ringtones, Vibration
Other features
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval
Date approved: Sep 13, 2018 FCC ID value: A3LSMA750FN	Date approved: Nov 28, 2019 FCC ID value: A3LSMA515FN
Measured SAR
Head: 0.50 W/kg Body: 0.39 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.05 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 4 GB RAM

Memory	4GB

with 128GB storage

Memory	6GB/128GB

with 64 GB storage

Memory	4GB/64GB

for Verizon

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

Dual SIM support

Dual SIM	Yes

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