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Full Differences Change compare mode	Review Specs 32GB 3GB RAM $ 86.36	Review Specs

Samsung Galaxy A02s

Samsung Galaxy A21s

Network
Technology	GSM / HSPA / LTE	GSM / HSPA / LTE
2G bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G Network	HSDPA 850 / 900 / 2100	HSDPA 850 / 900 / 1900 / 2100
4G Network	1, 3, 5, 7, 8, 20, 28, 38, 40, 41	1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41
Speed	HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps	HSPA, LTE

Launch
Announced	2020, November 24	2020, May 15
Status	Available. Released 2021, January 04	Available. Released 2020, June 02

Body
Dimensions	164.2 x 75.9 x 9.1 mm (6.46 x 2.99 x 0.36 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	196 g (6.91 oz)	192 g (6.77 oz)
Build	Glass front, plastic back, plastic frame	Glass front, plastic frame, plastic back
SIM	Nano-SIM Nano-SIM + Nano-SIM	Nano-SIM Nano-SIM + Nano-SIM

Display
Type	PLS LCD	PLS LCD
Size	6.5 inches, 102.0 cm2 (~81.8% screen-to-body ratio)	6.5 inches, 102.0 cm2 (~82.8% screen-to-body ratio)
Resolution	720 x 1600 pixels, 20:9 ratio (~270 ppi density)	720 x 1600 pixels, 20:9 ratio (~270 ppi density)

Platform
OS	Android 10, upgradable to Android 12, One UI 4.1	Android 10, upgradable to Android 12, One UI 4.1
Chipset	Qualcomm SDM450 Snapdragon 450 (14 nm)	Exynos 850 (8 nm)
CPU	Octa-core 1.8 GHz Cortex-A53	Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55)
GPU	Adreno 506	Mali-G52

Memory
Card slot	microSDXC (dedicated slot)	microSDXC (dedicated slot)
Internal	16GB 1GB RAM, 32GB 2GB RAM, 32GB 3GB RAM, 32GB 4GB RAM, 64GB 3GB RAM, 64GB 4GB 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 5.1	eMMC 5.1

Main Camera
Modules	13 MP, f/2.2, (wide), AF 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth)	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	1080p@30fps	1080p@30fps

Selfie Camera
Modules	5 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	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth	4.2, A2DP	5.0, A2DP, LE
Positioning	GPS, GLONASS, GALILEO, BDS	GPS, GLONASS, GALILEO, BDS
NFC	No	Yes (market/region dependent)
Infrared port	No	No
Radio	Unspecified	FM radio, RDS, recording
USB	USB Type-C 2.0	USB Type-C 2.0

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

Battery
Type	Li-Po 5000 mAh	Li-Po 5000 mAh
Charging	15W wired	15W wired

Misc
Colors	Black, White, Red, Blue	Black, White, Blue, Red
SAR EU	0.40 W/kg (head)     1.37 W/kg (body)	0.42 W/kg (head)     1.54 W/kg (body)
Models	SM-A025F, SM-A025F/DS, SM-A025G, SM-A025G/DS, SM-A025M, SM-A025M/DS, SM-A025U, SM-A025V, SM-A025A, SM-A025U1, SM-A025AZ, SM-S124DL	SM-A217F, SM-A217F/DS, SM-A217F/DSN, SM-A217M, SM-A217M/DS, SM-A217N
Price	$ 86.36 / £ 99.99 / € 108.62	About 220 EUR

Tests
Performance	AnTuTu: 90811 (v8) GeekBench: 495 (v5.1) GFXBench: 6.1fps (ES 3.1 onscreen)	AnTuTu: 107157 (v8) GeekBench: 1100 (v5.1) GFXBench: 11fps (ES 3.1 onscreen)
Display	1765:1 contrast ratio, 406 nits max brightness (measured)	1287:1 contrast ratio, 490 nits max brightness (measured)
Camera	Compare PHOTO / Compare VIDEO
Loudspeaker	-29.8 LUFS (Average)	-30.0 LUFS (Average)
Battery (old)	Endurance rating 114h	Endurance rating 119h