Samsung Galaxy J2 Core vs Samsung Galaxy A21 Specs Comparison

Availability

Officially announced
Aug 24, 2018	Apr 08, 2020
Prices (MSRP)
	$250

Design

Dimensions
5.65 x 2.84 x 0.35 inches 143.4 x 72.1 x 8.99 mm	6.61 x 3.02 x 0.32 inches 167.8 x 76.7 x 8.1 mm
Weight
5.43 oz / 154.0 g	6.81 oz / 193.0 g
Materials
Back: Plastic	Back: Plastic Frame: Plastic
Biometrics
	Fingerprint (touch)
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Gold, Blue	Black

Display

Size
5.0-inch, 66.57% screen-to-body	6.5-inch, 79.20% screen-to-body
Type
TFT	IPS LCD, 60Hz
Resolution
960x540px, 16:9 ratio, 220 PPI	1600x720px, 20:9 ratio, 270 PPI
Colors
16 777 216

Hardware

System chip
Samsung Exynos 7 Quad 7570 (14 nm)	Mediatek Helio P35 MT6765 (12 nm)
Processor
Quad-core 1400 MHz ARM Cortex-A53	Octa-core 4x2.3GHz Cortex-A53 4x1.8G​Hz Cortex-A53
GPU
Mali-T720 MP1	PowerVR GE8320
Memory
1GB (LPDDR3)/8GB	3GB (LPDDR4)/32GB (eMMC 5.1)
Storage expansion
microSDXC up to 256 GB	microSDXC up to 512 GB
OS
Android (8.0 Oreo)	Android (10)

Battery

Type
2600 mAh, Li - Ion	4000 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	16 MP (PDAF) Aperture size: F1.8 Sensor size: 1/3.06" Pixel size: 1 μm
Second camera
	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
	2 MP (Macro) Aperture size: F2.4
Fourth camera
	2 MP (Depth information) Aperture size: F2.4
Flash
LED	LED
Video recording
1080p (30 fps) Video calling, Video sharing	1080p (30 fps)
Front
5 MP	13 MP 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
Hearing aid compatible
	M4/T3
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, 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
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM	FM

Cellular

4G (FDD) Bands
1, 3, 5, 7, 8, 20	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71
4G (TDD) Bands
38, 40, 41	38, 39, 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 Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes
SIM type
Micro SIM	Nano SIM
HD Voice
	Yes

Phone Features

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

Regulatory Approval

FCC approval
	Date approved: Apr 17, 2020 FCC ID value: ZCASMA215U
Measured SAR
	Head: 0.42 W/kg Body: 1.27 W/kg Simultaneous Transmission: 1.27 W/kg Wireless Router: 1.27 W/kg

Alternative variants

for Verizon

4G (FDD) Bands	1, 2, 3, 5, 7, 8, 20, 28
4G (TDD) Bands	38, 40, 41
3G Bands	5, 8, 2, 1

for Sprint

4G (FDD) Bands	2, 3, 4, 5, 7, 12, 13, 25, 26, 66, 71
4G (TDD) Bands	41

Links

Full specifications
Samsung Galaxy J2 Core Specs	Samsung Galaxy A21 Specs
User Reviews
	Samsung Galaxy A21 User Reviews