Samsung Galaxy J7 (2017) vs Samsung Galaxy A71 Specs Comparison

Design

Dimensions
6.00 x 2.94 x 0.31 inches 152.5 x 74.8 x 8 mm	6.44 x 2.99 x 0.30 inches 163.6 x 76 x 7.7 mm
Weight
6.38 oz (181.0 g)	6.31 oz (179.0 g)
Materials
Back: Aluminum	Back: Plastic Frame: Plastic
Biometrics
Fingerprint (touch)	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
Black, Gold, Silver, Rose gold	Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Display

Size
5.5-inch	6.7-inch
Resolution
1920x1080px, 401 PPI	2400x1080px, 20:9 ratio, 393 PPI
Technology
Super AMOLED	Super AMOLED Plus
Refresh rate
	60Hz
Screen-to-body
73.28 %	87.24 %
Features
Ambient light sensor, Proximity sensor	Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip
Samsung Exynos 7 Octa 7870 (14 nm)	Qualcomm Snapdragon 730 SM7150-AA (8 nm)
Processor
Octa-core ARM Cortex-A53	Octa-core 2200 MHz Kryo 470
GPU
Mali-T830 MP2	Adreno 618
RAM
3GB (LPDDR3)	6GB (LPDDR4)
Internal storage
16GB	128GB, available to use: 106.1 GB
Storage expansion
microSDXC up to 256 GB	microSDXC up to 512 GB
OS
Android (7.0 Nougat), Samsung One UI	Android (12, 11, 10), Samsung One UI

Battery

Capacity
3600 mAh	4500 mAh
Type
	Li - Polymer
Charging
	Fast charging

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

6h 59min

Browsing

11h 32min

Video

11h 38min

Gaming

12h 46min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Single camera	Quad camera
Main camera
13 MP (Autofocus) Aperture size: F1.7	64 MP (PDAF) Aperture size: F1.8 Focal length: 26 mm Sensor size: 1/1.7" Pixel size: 0.8 μm
Second camera
	12 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 12 mm
Third camera
	5 MP (Macro) Aperture size: F2.4 Focal Length: 25 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
1920x1080 (Full HD) (30 fps) Video calling, Video sharing	3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps) EIS
Front
13 MP (Flash), Video capture: 1920x1080 (Full HD)	32 MP (HDR), Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
4.1	5.0
WLAN
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
microUSB, USB 2.0	Type-C, USB 2.0
Location
GPS, A-GPS, Glonass, BeiDou	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)
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
Album art cover, Background playback
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM	FM
Additional microphone(s)
	Noise cancellation

Cellular

4G (FDD)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)	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), 28(700 APT), 66(AWS-3)
4G (TDD)
Bands 40(2300)	Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 5(850), 8(900)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Cat 6 (300/50 Mbit/s), 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
VoLTE
Yes

Availability

Officially announced
Jun 06, 2017	Dec 12, 2019

Alternative variants

Dual SIM	Yes

with 8 GB RAM

RAM	8GB

Links

Full specifications
Samsung Galaxy J7 (2017) Specs	Samsung Galaxy A71 Specs
PhoneArena Review
	Samsung Galaxy A71 Review
User Reviews
	Samsung Galaxy A71 User Reviews