Model NameGalaxy A21s
Dimensions163.7 x 75.3 x 8.9 mm (6.44 x 2.96 x 0.35 in)
Weight192 g (6.77 oz)
BuildGlass front, plastic frame, plastic back
SIMSingle SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
TypePLS IPS
Size6.5 inches, 102.0 cm2 (~82.8% screen-to-body ratio)
Resolution720 x 1600 pixels, 20:9 ratio (~270 ppi density)
OSAndroid 10, upgradable to Android 11, One UI 3.1
ChipsetExynos 850 (8nm)
CPUOcta-core (4×2.0 GHz Cortex-A55 & 4×2.0 GHz Cortex-A55)
GPUMali-G52
Card slotmicroSDXC (dedicated slot)
Internal32GB 2GB RAM, 32GB 3GB RAM, 64GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 3GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
eMMC 5.1
eMMC 5.1
Main Camera (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)
8 MP, f/2.2, 123˚ (ultrawide), 1/4.0″”, 1.12µm
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)
FeaturesLED flash, panorama, HDR
Video1080p@30fps
Selfie Camera (Single)13 MP, f/2.2, (wide), 1/3.1″”, 1.12µm
Video1080p@30fps
LoudspeakerYes
3.5mm jackYes
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth5.0, A2DP, LE
GPSYes, with A-GPS, GLONASS, GALILEO, BDS
NFCYes (market/region dependent)
RadioFM radio, RDS, recording
USBUSB Type-C 2.0
SensorsFingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Battery TypeLi-Po 5000 mAh, non-removable
ChargingFast charging 15W
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