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Specifications
 

Samsung Galaxy M21

Samsung Galaxy M31

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Samsung Galaxy M21
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Samsung Galaxy M21

Samsung Galaxy M31

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
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network 1, 3, 5, 7, 8, 20, 38, 40, 41 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66
Speed HSPA, LTE-A HSPA, LTE-A
Launch
Announced 2020, March 18 2020, February 25
Status Available. Released 2020, March 23 Available. Released 2020, March 05
Body
Dimensions 159 x 75.1 x 8.9 mm (6.26 x 2.96 x 0.35 in) 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in)
Weight 188 g (6.63 oz) 191 g (6.74 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) Dual SIM (Nano-SIM, dual stand-by)
Display
Type Super AMOLED, 420 nits (peak) Super AMOLED, 420 nits (peak)
Size 6.4 inches, 100.5 cm2 (~84.2% screen-to-body ratio) 6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio)
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~403 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 11, One UI 3.1 Core Android 10, upgradable to Android 12, One UI 4.1
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 6GB RAM 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
 UFS 2.1 UFS 2.1
Main Camera
Modules 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)
64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF
8 MP, f/2.2, 123˚ (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.4, (macro)
5 MP, f/2.2, (depth)
Features LED flash, panorama, HDR LED flash, panorama, HDR
Video 4K@30fps, 1080p@30fps, 720p@240fps, gyro-EIS 4K@30fps, 1080p@30fps, gyro-EIS
Selfie Camera
Modules 20 MP, f/2.2, 26mm (wide) 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 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, compass
  Virtual proximity sensing
Battery
Type Li-Po 6000 mAh, non-removable Li-Po 6000 mAh, non-removable
Charging 15W wired 15W wired
Stand-by
Talk time
Misc
Colors Midnight Blue, Raven Black Ocean Blue, Space Black, Red
SAR 0.47 W/kg (head)     0.52 W/kg (head)     0.69 W/kg (body)    
SAR EU 0.48 W/kg (head)     1.13 W/kg (body)    
Models SM-M215F, SM-M215F/DS, SM-M215F/DSN SM-M315F, SM-M315F/DS, SM-M315F/DSN
Price £ 279.99 / € 195.00 / Rp 2,698,900 C$ 885.00 / Rp 3,450,000

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