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Samsung Galaxy J2

Samsung Galaxy A21s

Network
Technology	GSM / HSPA / LTE	GSM / HSPA / LTE
2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Network	HSDPA 850 / 900 / 1900 / 2100 - J200G, J200GU, J200F, J200Y	HSDPA 850 / 900 / 1900 / 2100
	HSDPA 850 / 900 / 2100 - J200H
4G Network	1, 3, 5, 7, 8, 20 - J200F	1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41
	1, 3, 5, 8, 20, 40 - J200G
	1, 3, 5, 7, 8 - J200GU
	1, 3, 5, 7, 8, 28 - J200Y
Speed	HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps	HSPA, LTE

Launch
Announced	2015, September 11. Released 2015, September	2020, May 15
Status	Discontinued	Available. Released 2020, June 02

Body
Dimensions	136.5 x 69 x 8.4 mm (5.37 x 2.72 x 0.33 in)	163.7 x 75.3 x 8.9 mm (6.44 x 2.96 x 0.35 in)
3D size compare	Size up
Weight	129 g (4.55 oz)	192 g (6.77 oz)
Build	Glass front, plastic back, plastic frame	Glass front, plastic frame, plastic back
SIM	Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)	Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)

Display
Type	Super AMOLED	PLS LCD
Size	4.7 inches, 60.9 cm2 (~64.7% screen-to-body ratio)	6.5 inches, 102.0 cm2 (~82.8% screen-to-body ratio)
Resolution	540 x 960 pixels, 16:9 ratio (~234 ppi density)	720 x 1600 pixels, 20:9 ratio (~270 ppi density)

Platform
OS	Android 5.1.1 (Lollipop)	Android 10, upgradable to Android 12, One UI 4.1
Chipset	Exynos 3475 Quad (28 nm)	Exynos 850 (8nm)
CPU	Quad-core 1.3 GHz Cortex-A7	Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55)
GPU	Mali-T720	Mali-G52

Memory
Card slot	microSDXC (dedicated slot)	microSDXC (dedicated slot)
Internal	8GB 1GB RAM	32GB 2GB RAM, 32GB 3GB RAM, 32GB 4GB RAM, 64GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 3GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
	eMMC 4.5	eMMC 5.1

Main Camera
Modules	5 MP, f/2.2, AF	48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 123˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth)
Features	LED flash	LED flash, panorama, HDR
Video	720p@30fps	1080p@30fps

Selfie Camera
Modules	2 MP, f/2.2	13 MP, f/2.2, (wide), 1/3.1", 1.12µm
Video		1080p@30fps

Sound
Loudspeaker	Yes	Yes
3.5mm jack	Yes	Yes

Comms
WLAN	Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth	4.1, A2DP	5.0, A2DP, LE
Positioning	GPS, GLONASS	GPS, GLONASS, GALILEO, BDS
NFC	Yes (market dependent)	Yes (market/region dependent)
Infrared port	No	No
Radio	FM radio, RDS, recording	FM radio, RDS, recording
USB	microUSB 2.0, OTG	USB Type-C 2.0

Features
Sensors	Accelerometer, proximity	Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass

Battery
Type	Li-Ion 2000 mAh, removable	Li-Po 5000 mAh, non-removable
Charging		15W wired
Talk time	Up to 11 h (3G)
Music play	Up to 41 h

Misc
Colors	White, Black, Gold	Black, White, Blue, Red
SAR	1.18 W/kg (head)     1.27 W/kg (body)
SAR EU	0.57 W/kg (head)     0.45 W/kg (body)	0.42 W/kg (head)     1.54 W/kg (body)
Models	SM-J200F, SM-J200G, SM-J200H, SM-J200GU, SM-J200M, SM-J200Y	SM-A217F, SM-A217F/DS, SM-A217F/DSN, SM-A217M, SM-A217M/DS, SM-A217N
Price	About 150 EUR	About 220 EUR

Tests
Performance	Basemark X: 1683	AnTuTu: 107157 (v8) GeekBench: 1100 (v5.1) GFXBench: 11fps (ES 3.1 onscreen)
Display		Contrast ratio: 1287:1 (nominal)
Camera	Compare PHOTO / Compare VIDEO
Loudspeaker	Voice 67dB / Noise 64dB / Ring 75dB	-30.0 LUFS (Average)
Battery (old)	Endurance rating 67h	Endurance rating 119h