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	Compare with Samsung Galaxy A51	Compare with Samsung Galaxy M21
Full Differences Change compare mode	Review Specs 128GB 4GB RAM $ 137.00	Preview Specs

Samsung Galaxy A51

Samsung Galaxy M21

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	HSDPA 850 / 900 / 1900 / 2100
	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66	1, 3, 5, 7, 8, 20, 38, 40, 41
	2, 4, 5, 12, 13, 25, 26, 41, 66, 71 - SM-A515U
Speed	HSPA, LTE	HSPA, LTE

Launch
Announced	2019, December 12	2020, March 18
Status	Available. Released 2019, December 16	Available. Released 2020, March 23

Body
Dimensions	158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in)	159 x 75.1 x 8.9 mm (6.26 x 2.96 x 0.35 in)
3D size compare	Size up
Weight	172 g (6.07 oz)	188 g (6.63 oz)
Build	Glass front (Gorilla Glass 3), plastic back, plastic frame	Glass front (Gorilla Glass 3), plastic back, plastic frame
SIM	Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)	Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)

Display
Type	Super AMOLED	Super AMOLED, 420 nits (peak)
Size	6.5 inches, 102.0 cm2 (~87.4% screen-to-body ratio)	6.4 inches, 100.5 cm2 (~84.2% screen-to-body ratio)
Resolution	1080 x 2400 pixels, 20:9 ratio (~405 ppi density)	1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Protection	Corning Gorilla Glass 3	Corning Gorilla Glass 3

Platform
OS	Android 10, upgradable to Android 13, One UI 5	Android 10, upgradable to Android 11, One UI 3.1 Core
Chipset	Exynos 9611 (10nm)	Exynos 9611 (10nm)
CPU	Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)	Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU	Mali-G72 MP3	Mali-G72 MP3

Memory
Card slot	microSDXC (dedicated slot)	microSDXC (dedicated slot)
Internal	64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM	64GB 4GB RAM, 128GB 6GB RAM
	UFS 2.0	UFS 2.1

Main Camera
Modules	48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP, f/2.4, (macro) 5 MP, f/2.2, (depth)	48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm 5 MP, f/2.2, (depth)
Features	LED flash, panorama, HDR	LED flash, panorama, HDR
Video	4K@30fps, 1080p@30/120fps; gyro-EIS	4K@30fps, 1080p@30fps, 720p@240fps, gyro-EIS

Selfie Camera
Modules	32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm	20 MP, f/2.2, 26mm (wide)
Features	HDR	HDR
Video	4K@30fps, 1080p@30fps	1080p@30fps

Sound
Loudspeaker	Yes	Yes
3.5mm jack	Yes	Yes

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

Features
Sensors	Fingerprint (under display, optical), accelerometer, gyro, compass	Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
	Virtual proximity sensing ANT+

Battery
Type	Li-Po 4000 mAh, non-removable	Li-Po 6000 mAh, non-removable
Charging	15W wired	15W wired

Misc
Colors	Prism Crush Black, Prism Crush White, Prism Crush Blue, Prism Crush Pink	Midnight Blue, Raven Black
SAR	0.80 W/kg (head)     0.67 W/kg (body)	0.47 W/kg (head)
SAR EU	0.37 W/kg (head)     1.59 W/kg (body)
Models	SM-A515F, SM-A515F/DSN, SM-A515F/DS, SM-A515F/DST, SM-A515F/DSM, SM-A515F/N, SM-A515U, SM-A515U1, SM-A515W, SM-A515X, SM-S515DL	SM-M215F, SM-M215F/DS, SM-M215F/DSN
Price	$ 137.00 / C$ 189.00 / £ 118.80 / € 126.00 / ₹ 13,184	About 190 EUR

Tests
Performance	AnTuTu: 113051 (v7), 175363 (v8) GeekBench: 5401 (v4.4), 1294 (v5.1) GFXBench: 5.6fps (ES 3.1 onscreen)
Display	Contrast ratio: Infinite (nominal)
Loudspeaker	-28.6 LUFS (Average)
Audio quality	Noise -93.1dB / Crosstalk -87.3dB
Battery (old)	Endurance rating 86h