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Samsung Galaxy M21s

Samsung Galaxy M51

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 / 1700(AWS) / 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, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66
Speed	HSPA, LTE	HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 400/50 Mbps

Launch
Announced	2020, November 06	2020, August 31
Status	Available. Released 2020, November 06	Available. Released 2020, September 11

Body
Dimensions	159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in)	163.9 x 76.3 x 9.5 mm (6.45 x 3.00 x 0.37 in)
Weight	191 g (6.74 oz)	213 g (7.51 oz)
Build	Glass front (Gorilla Glass 3), plastic back, plastic frame	Glass front (Gorilla Glass 3+), plastic back, plastic frame
SIM	Nano-SIM Nano-SIM + Nano-SIM	Nano-SIM + Nano-SIM

Display
Type	Super AMOLED, 420 nits (peak)	Super AMOLED Plus
Size	6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio)	6.7 inches, 108.4 cm2 (~86.7% screen-to-body ratio)
Resolution	1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)	1080 x 2400 pixels, 20:9 ratio (~393 ppi density)
Protection	Corning Gorilla Glass 3	Corning Gorilla Glass 3+

Platform
OS	Android 10, One UI 2.5	Android 10, upgradable to Android 12, One UI 4.1
Chipset	Exynos 9611 (10 nm)	Qualcomm SDM730 Snapdragon 730G (8 nm)
CPU	Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)	Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
GPU	Mali-G72 MP3	Adreno 618

Memory
Card slot	microSDXC (dedicated slot)	microSDXC (dedicated slot)
Internal	64GB 4GB RAM, 128GB 6GB RAM	128GB 6GB RAM, 128GB 8GB RAM
	eMMC 5.1

Main Camera
Modules	64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm 5 MP, f/2.2, (depth)	64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP, f/2.4, (macro) 5 MP, f/2.4, (depth)
Features	LED flash, panorama, HDR	LED flash, panorama, HDR
Video	4K@30fps, 1080p@30fps, gyro-EIS	4K@30fps, 1080p@30fps

Selfie Camera
Modules	32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm	32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Features	HDR	HDR
Video	1080p@30fps	4K@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	No	Yes
Infrared port	No	No
Radio	FM radio	FM radio, RDS
USB	USB Type-C 2.0	USB Type-C 2.0, OTG

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

Battery
Type	Li-Po 6000 mAh	Li-Po 7000 mAh
Charging	15W wired	25W wired, 100% in 115 min Reverse wired

Misc
Colors	Blue, Black	Celestial Black, Electric Blue, White
SAR	0.38 W/kg (head)	1.38 W/kg (head)
SAR EU	0.48 W/kg (head)     1.13 W/kg (body)	0.61 W/kg (head)     1.45 W/kg (body)
Models	SM-F415F, SM-F415F/DS	SM-M515F, SM-M515F/DSN
Price	About 230 EUR	About 470 EUR

Tests
Performance		AnTuTu: 266620 (v8) GeekBench: 1774 (v5.1) GFXBench: 15fps (ES 3.1 onscreen)
Display		677 nits max brightness (measured)
Loudspeaker		-28.5 LUFS (Average)
Battery (old)		Endurance rating 156h