Product
Samsung Galaxy A21s
Samsung Galaxy A21s
Samsung Galaxy M15
Samsung Galaxy M15
Battery
Charging 15W wired 25W wired
Type Li-Po 5000 mAh 6000 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) 160.1 x 76.8 x 9.3 mm (6.30 x 3.02 x 0.37 in)
SIM Nano-SIMNano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 192 g (6.77 oz) 217 g (7.65 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.3, A2DP, LE
NFC Yes (market/region dependent) Yes (market/region dependent)
Positioning GPS, GLONASS, GALILEO, BDS GPS, GALILEO, GLONASS, BDS, QZSS
Radio FM radio, RDS, recording No
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 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Resolution 720 x 1600 pixels, 20:9 ratio (~270 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~396 ppi density)
Size 6.5 inches, 102.0 cm2 (~82.8% screen-to-body ratio) 6.5 inches, 103.7 cm2 (~84.3% screen-to-body ratio)
Type PLS LCD Super AMOLED, 90Hz, 800 nits (HBM)
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (side-mounted), accelerometer, gyro, compass
  - Virtual proximity sensing
Launch
Announced 2020, May 15 2024, March 09
Status Available. Released 2020, June 02 Available. Released 2024, April 05
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) -
Triple - 50 MP, f/1.8, (wide), AF 5 MP, f/2.2, (ultrawide) 2 MP, f/2.4, (macro)
Video 1080p@30fps 1080p@30fps, gyro-EIS
Memory
Card slot microSDXC (dedicated slot) microSDXC (uses shared SIM 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 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
  eMMC 5.1 -
Misc
Colors Black, White, Blue, Red Light Blue, Dark Blue, Gray
Models SM-A217F, SM-A217F/DS, SM-A217F/DSN, SM-A217M, SM-A217M/DS, SM-A217N SM-M156B, SM-M156B/DS, SM-M156B/DSN
SAR - 0.71 W/kg (head)    
SAR EU 0.42 W/kg (head)     1.54 W/kg (body)     0.78 W/kg (head)     1.19 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
5G bands - 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6
Speed HSPA, LTE HSPA, LTE, 5G
Technology GSM / HSPA / LTE GSM / HSPA / LTE / 5G
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) Mediatek Dimensity 6100+ (6 nm)
CPU Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55) Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Mali-G52 Mali-G57 MC2
OS Android 10, upgradable to Android 12, One UI 4.1 Android 14, up to 4 major Android upgrades, One UI 6
Selfie camera
Single 13 MP, f/2.2, (wide), 1/3.1", 1.12µm 13 MP, f/2.0, (wide)
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes