Product
Samsung Galaxy A21s
Samsung Galaxy A21s
Samsung Galaxy M12
Samsung Galaxy M12
Battery
Charging 15W wired 15W wired
Type Li-Po 5000 mAh Li-Po 5000 mAh
Body
Build Glass front, plastic frame, plastic back Glass front, plastic back, plastic frame
Dimensions 163.7 x 75.3 x 8.9 mm (6.44 x 2.96 x 0.35 in) 164 x 75.9 x 9.7 mm (6.46 x 2.99 x 0.38 in)
SIM Nano-SIMNano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 192 g (6.77 oz) 212 g (7.48 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE
NFC Yes (market/region dependent) Yes
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, GALILEO, BDS
Radio FM radio, RDS, recording Unspecified
USB USB Type-C 2.0 USB Type-C 2.0
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Display
Resolution 720 x 1600 pixels, 20:9 ratio (~270 ppi density) 720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Size 6.5 inches, 102.0 cm2 (~82.8% screen-to-body ratio) 6.5 inches, 102.0 cm2 (~81.9% screen-to-body ratio)
Type PLS LCD PLS LCD, 90Hz
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (side-mounted), accelerometer
  - Virtual proximity sensing
Launch
Announced 2020, May 15 2021, April 19
Status Available. Released 2020, June 02 Available. Released 2021, April 30
Main Camera
Features LED flash, panorama, HDR LED flash, panorama, HDR
Quad 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) 48 MP, f/2.0, (wide), 1/2.0", 0.8µm, PDAF 5 MP, f/2.2, 123˚ (ultrawide) 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth)
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 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 32GB 3GB RAM, 32GB 4GB RAM, 64GB 4GB RAM, 128GB 4GB RAM
  eMMC 5.1 eMMC 5.1
Misc
Colors Black, White, Blue, Red Black, Blue, Green
Models SM-A217F, SM-A217F/DS, SM-A217F/DSN, SM-A217M, SM-A217M/DS, SM-A217N SM-M127F, SM-M127F/DSN, SM-M127N
SAR EU 0.42 W/kg (head)     1.54 W/kg (body)     0.54 W/kg (head)     1.39 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66
Speed HSPA, LTE HSPA, LTE
Technology GSM / HSPA / LTE GSM / HSPA / LTE
Our Tests
Battery (old) Endurance rating 119h -
Camera Photo / Video -
Display 1287:1 contrast ratio, 490 nits max brightness (measured) -
Loudspeaker -30.0 LUFS (Average) -
Performance AnTuTu: 107157 (v8) GeekBench: 1100 (v5.1) GFXBench: 11fps (ES 3.1 onscreen) -
Platform
Chipset Exynos 850 (8 nm) Exynos 850 (8 nm)
CPU Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55) Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55)
GPU Mali-G52 Mali-G52
OS Android 10, upgradable to Android 12, One UI 4.1 Android 11, One UI Core 3.1
Selfie camera
Features - HDR
Single 13 MP, f/2.2, (wide), 1/3.1", 1.12µm 8 MP, f/2.2, (wide)
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes