Used Samsung S21

NETWORK
TechnologyGSM / CDMA / HSPA / EVDO / LTE / 5G
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
 CDMA 800 / 1900 & TD-SCDMA
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
 CDMA2000 1xEV-DO
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G991U1
 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G991B
5G bands2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G991U1
 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G991B
SpeedHSPA 42.2/5.76 Mbps, LTE-A (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
LAUNCH
Announced2021, January 14
StatusAvailable. Released 2021, January 29
BODY
Dimensions151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in)
Weight169 g (Sub6), 171 g (mmWave) (5.96 oz)
BuildGlass front (Gorilla Glass Victus), plastic back, aluminum frame
SIMNano-SIM and eSIM or Dual SIM (2 Nano-SIMs and eSIM, dual stand-by)
 IP68 dust/water resistant (up to 1.5m for 30 min)
DISPLAY
TypeDynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)
Size6.2 inches, 94.1 cm2 (~87.2% screen-to-body ratio)
Resolution1080 x 2400 pixels, 20:9 ratio (~421 ppi density)
ProtectionCorning Gorilla Glass Victus
 Always-on display
PLATFORM
OSAndroid 11, upgradable to Android 13, One UI 5.1
ChipsetExynos 2100 (5 nm) - International
Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
CPUOcta-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International
Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
GPUMali-G78 MP14 - International
Adreno 660 - USA/China
MEMORY
Card slotNo
Internal128GB 8GB RAM, 256GB 8GB RAM
 UFS 3.1
MAIN CAMERA
Triple12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, Dual Pixel PDAF, OIS
64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom
12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video
FeaturesLED flash, auto-HDR, panorama
Video8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
SELFIE CAMERA
Single10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, Dual Pixel PDAF
FeaturesDual video call, Auto-HDR
Video4K@30/60fps, 1080p@30fps
SOUND
LoudspeakerYes, with stereo speakers
3.5mm jackNo
 32-bit/384kHz audio
Tuned by AKG
COMMS
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Bluetooth5.0, A2DP, LE
PositioningGPS, GLONASS, BDS, GALILEO
NFCYes
RadioFM radio (Snapdragon model only; market/operator dependent)
USBUSB Type-C 3.2, OTG
FEATURES
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
MessagingSMS(threaded view), MMS, Email, Push Email, IM
BrowserHTML5
 Samsung DeX, Samsung Wireless DeX (desktop experience support)
Bixby natural language commands and dictation
Samsung Pay (Visa, MasterCard certified)
BATTERY
TypeLi-Ion 4000 mAh, non-removable
Charging25W wired, PD3.0
15W wireless (Qi/PMA)
4.5W reverse wireless