Samsung Galaxy J7 Refine vs Samsung Galaxy A51 5G Specs Comparison

Availability

Officially announced
Jun 29, 2018	Apr 08, 2020
Prices (MSRP)
	$500

Design

Dimensions
6.03 x 3 x 0.34 inches 153.2 x 76.2 x 8.6 mm	6.26 x 2.90 x 0.34 inches 158.9 x 73.6 x 8.7 mm
Weight
6.38 oz / 181.0 g	6.60 oz / 187.0 g
Materials
	Back: Plastic Frame: Aluminum
Biometrics
2D Face unlock	2D Face unlock, Optical in-screen fingerprint
Features
Touch sensitive control keys
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Gold	Prism cube black

Display

Size
5.5-inch, 71.45% screen-to-body	6.5-inch, 87.37% screen-to-body
Type
TFT	Super AMOLED, 60Hz
Resolution
1280x720px, 16:9 ratio, 267 PPI	2400x1080px, 20:9 ratio, 405 PPI
Colors
16 777 216
Protection
Corning Gorilla Glass 5	Corning Gorilla Glass 3

Hardware

System chip
Samsung Exynos 7 Octa 7884 (14 nm)	Samsung Exynos 980 (8 nm)
Processor
Octa-core 1600 MHz ARM Cortex-A53	Octa-core 2x2.2GHz Cortex-A77 6x1.8G​Hz Cortex-A55
GPU
Mali-T830 MP1	Mali-G76 MP5
Memory
2GB (LPDDR3)/32GB	6GB (LPDDR4)/128GB 8GB/128GB
Storage expansion
microSDXC up to 400 GB	microSDXC up to 1000 GB
OS
Android (8.0 Oreo)	Android (11, 10)

Battery

Type
3300 mAh, Li - Polymer	4500 mAh, Li - Polymer
Charging
	Fast charging
Charge speed
	Wired: 25.0W

Camera

Rear
Single camera	Quad camera
Main camera
13 MP (PDAF) Aperture size: F1.7 Focal length: 28 mm Sensor size: 1/3.06" Pixel size: 1.12 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
1080p (30 fps) Video calling, Video sharing	4K UHD (30 fps), 1080p (120 fps), 720p (480 fps) Hyperlapse, EIS
Front
13 MP	32 MP (HDR) Video capture: 1080p

Connectivity & Features

Bluetooth
4.2	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, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3	M3/T3
Location
GPS, A-GPS, Glonass	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
ANT+, UMA (Wi-Fi Calling), 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
Additional microphone(s)
Yes	Noise cancellation

Cellular

5G Bands
	n41, n71, SA, NSA
4G (FDD) Bands
25, 26	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71
4G (TDD) Bands
41	38, 39, 40, 41
3G Bands
	1, 2, 4, 5
Data Speed
LTE-A Cat 6 (300/50 Mbit/s), HSPA, HSUPA	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

Phone Features

Notifications
Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone
Other features
Voice dialing, Voice commands, Voice recording, TTY/TDD

Regulatory Approval

FCC approval
Date approved: May 07, 2018 FCC ID value: A3LSMJ737P	Date approved: Jul 15, 2020 FCC ID value: A3LSMA516U
Measured SAR
Head: 0.96 W/kg Body: 0.76 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.20 W/kg Phablet: 3.91 W/kg	Head: 1.18 W/kg Body: 1.20 W/kg Simultaneous Transmission: 3.25 W/kg Wireless Router: 1.37 W/kg

Alternative variants

with 8GB RAM

Memory	8GB

for Europe

Colors	Prism cube black, Prism cube white
5G Bands	n41, n78, SA, NSA
4G (FDD) Bands	1, 3, 4, 5, 7, 8, 12, 20, 28
4G (TDD) Bands	38, 40, 41
3G Bands	5, 8, 2, 1
Dual SIM	Yes
SIM type	Nano SIM

for Verizon

System chip	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, 3, 4, 5, 7, 12, 13, 20, 28, 66
3G Bands	5, 8, 2, 1
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
Prices (MSRP)	$550

Discover more

Full Specs Samsung Galaxy J7 Refine Specs

Full Specs Samsung Galaxy A51 5G Specs