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Samsung Galaxy M21
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Samsung Galaxy M20

Samsung Galaxy M21
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 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
  HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network 1, 3, 5, 7, 8, 20, 38, 40, 41 1, 3, 5, 7, 8, 20, 38, 40, 41
  1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28, 38, 40, 41, 66
Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat12 600/50 Mbps HSPA, LTE
Launch
Announced 2019, January 28 2020, March 18
Status Available. Released 2019, February Available. Released 2020, March 23
Body
Dimensions 156.4 x 74.5 x 8.8 mm (6.16 x 2.93 x 0.35 in) 159 x 75.1 x 8.9 mm (6.26 x 2.96 x 0.35 in)
3D size compare
Weight 186 g (6.56 oz) 188 g (6.63 oz)
Build Glass front, 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 PLS LCD Super AMOLED, 420 nits (peak)
Size 6.3 inches, 97.4 cm2 (~83.6% screen-to-body ratio) 6.4 inches, 100.5 cm2 (~84.2% screen-to-body ratio)
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Protection Corning Gorilla Glass 3
Platform
OS Android 8.1 (Oreo), upgradable to Android 10, One UI 2 Android 10, upgradable to Android 11, One UI 3.1 Core
Chipset Exynos 7904 (14 nm) Exynos 9611 (10 nm)
CPU Octa-core (2x1.8 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53) Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU Mali-G71 MP2 Mali-G72 MP3
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 32GB 3GB RAM, 64GB 4GB RAM 64GB 4GB RAM, 128GB 6GB RAM
 eMMC 5.1 UFS 2.1
Main Camera
Modules 13 MP, f/1.9, 1/3.1", 1.12µm, PDAF
5 MP, f/2.2, 12mm (ultrawide)		 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 1080p@30fps 4K@30fps, 1080p@30fps, 720p@240fps, gyro-EIS
Selfie Camera
Modules 8 MP, f/2.0, 25mm (wide) 20 MP, f/2.2, 26mm (wide)
Features HDR HDR
Video 1080p@30fps 1080p@30fps
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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 5.0, A2DP, LE 5.0, A2DP, LE
Positioning GPS, GLONASS, BDS GPS, GLONASS, GALILEO, BDS
NFC Yes (market/region dependent) Yes (market/region dependent)
Infrared port No No
Radio FM radio, RDS, recording FM radio, RDS, recording
USB USB Type-C 2.0 USB Type-C 2.0
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Battery
Type Li-Po 5000 mAh, non-removable Li-Po 6000 mAh
Charging 15W wired 15W wired
Misc
Colors Ocean Blue, Charcoal Black Midnight Blue, Raven Black
SAR 0.47 W/kg (head)    
SAR EU 0.25 W/kg (head)     1.59 W/kg (body)    
Models SM-M205F, SM-M205FN, SM-M205G, SM-M205M, SM-M205N SM-M215F, SM-M215F/DS, SM-M215F/DSN
Price About 400 EUR About 190 EUR
Tests
Performance AnTuTu: 108658 (v7)
GeekBench: 4160 (v4.4)
GFXBench: 4.4fps (ES 3.1 onscreen)
Display Contrast ratio: 1333:1 (nominal), 2.960 (sunlight)
Loudspeaker Voice 67dB / Noise 66dB / Ring 68dB
Audio quality Noise -90.5dB / Crosstalk -91.7dB
Battery (old) Endurance rating 103h

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