Samsung Galaxy J2 Core vs Samsung Galaxy M31 Specs Comparison

Availability

Officially announced
Aug 24, 2018	Feb 25, 2020
Prices (MSRP)
	€240

Design

Dimensions
5.65 x 2.84 x 0.35 inches 143.4 x 72.1 x 8.99 mm	6.27 x 2.96 x 0.35 inches 159.2 x 75.1 x 8.9 mm
Weight
5.43 oz / 154.0 g	6.74 oz / 191.0 g
Materials
Back: Plastic	Back: Plastic Frame: Plastic
Biometrics
	2D Face unlock, Fingerprint (touch)
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Gold, Blue	Blue, Black, Red

Display

Size
5.0-inch, 66.57% screen-to-body	6.4-inch, 83.97% screen-to-body
Type
TFT	Super AMOLED, 420 nits
Resolution
960x540px, 16:9 ratio, 220 PPI	2340x1080px, 19.5:9 ratio, 403 PPI
Colors
16 777 216
Protection
	Corning Gorilla Glass 3

Hardware

System chip
Samsung Exynos 7 Quad 7570 (14 nm)	Exynos 9611 (10 nm)
Processor
Quad-core 1400 MHz ARM Cortex-A53	Octa-core 4x2.3GHz Cortex-A73 4x1.7G​Hz Cortex-A53
GPU
Mali-T720 MP1	Mali-G72 MP3
Memory
1GB (LPDDR3)/8GB	6GB (LPDDR4)/64GB (UFS 2.1) 6GB/128GB
Storage expansion
microSDXC up to 256 GB	microSDXC up to 512 GB
OS
Android (8.0 Oreo)	Android (11, 10)

Battery

Type
2600 mAh, Li - Ion	6000 mAh, Li - Polymer
Charging
	Fast charging
Charge speed
	Wired: 15.0W

Camera

Rear
Single camera	Quad camera
Main camera
8 MP (Autofocus, BSI sensor) Aperture size: F2.2 Focal length: 24 mm Sensor size: 1/4" Pixel size: 1.12 μm	64 MP (PDAF) Aperture size: F1.8 Focal length: 26 mm Sensor size: 1/1.7" Pixel size: 0.8 μm
Second camera
	8 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 12 mm Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
	5 MP (Macro) Aperture size: F2.2 Focal Length: 25 mm Sensor size: 1/5" Pixel size: 1.12 μm
Fourth camera
	5 MP (Depth information) Aperture size: F2.2
Flash
LED	LED
Video recording
1080p (30 fps) Video calling, Video sharing	4K UHD (30 fps), 1080p, 720p (240 fps) Hyperlapse, EIS
Front
5 MP	32 MP (HDR, Slow-motion videos) Video capture: 1080p

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
b,g,n Hotspot, Wi-Fi Direct 802.11 b, g, n	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, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
VoIP, Tethering, Computer sync, OTA sync	NFC

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

Cellular

4G (FDD) Bands
1, 3, 5, 7, 8, 20	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66
4G (TDD) Bands
38, 40, 41	38, 40, 41
3G Bands
5, 8, 1	1, 2, 4, 5, 8
Data Speed
LTE Cat 4 (150/50 Mbit/s), HSPA, HSUPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes	Yes
SIM type
Micro 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: Feb 07, 2020 FCC ID value: A3LSMM315F
Measured SAR
	Head: 0.42 W/kg Body: 0.41 W/kg Simultaneous Transmission: 1.54 W/kg Wireless Router: 0.74 W/kg

Alternative variants

with 128GB storage

Memory	128GB

Discover more

Full Specs Samsung Galaxy J2 Core Specs

Full Specs Samsung Galaxy M31 Specs