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Samsung Galaxy S21

Device A

Galaxy S21

Samsung · Phones

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Tecno Camon Slim

Device B

Camon Slim

Tecno · Phones

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Complete comparison

Full specifications

Every available group and stored value, aligned by field.

LAUNCH DATE3 fields
SpecificationGalaxy S21Camon Slim
AnnouncedJanuary 29, 2021September 2, 2026
Released2021-01-292026-09-02
StatusAvailableAvailable. Released 2026, September
NETWORK6 fields
SpecificationGalaxy S21Camon Slim
2G BandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2GSM 850 / 900 / 1800 / 1900
3G BandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100; CDMA2000 1xEV-DOHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G LTE1, 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-G991BLTE
5G2, 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-G991BSA/NSA
SpeedLTE, 5GLTE, 5G
Technology5G/4G/LTE/GSM2G | 3G | 4G | 5G
BODY5 fields
SpecificationGalaxy S21Camon Slim
BuildGlass front (Gorilla Glass Victus), plastic back, aluminum frameGlass front, glass back, aluminum frame
Dimensions151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in)162.6 x 77.3 x 6.4 mm (6.40 x 3.04 x 0.25 in)
IP RatingIP68 dust/water resistant (up to 1.5m for 30 min)IP66/IP68/IP69/IP69K dust tight and water resistant
SIMNano-SIM + eSIM Nano-SIM + Nano-SIM + eSIM (max 2 at a time)Nano-SIM + Nano-SIM
Weight169 g (Sub6), 171 g (mmWave) (5.96 oz)190 g (6.70 oz)
DISPLAY7 fields
SpecificationGalaxy S21Camon Slim
Brightness1300 nits (peak)1600 nits (HBM), 4500 nits (peak)
ProtectionCorning Gorilla Glass VictusNo
Refresh Rate120Hz144Hz
Resolution1080 x 2400 pixels, 20:9 ratio (~421 ppi density)1208 x 2644 pixels (~429 ppi density)
Screen-to-body~87.2%~87.7%
Size6.2 inches, 94.1 cm2 (~87.2% screen-to-body ratio)6.78 inches
TypeDynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)AMOLED, 144Hz, 2160Hz PWM
PLATFORM4 fields
SpecificationGalaxy S21Camon Slim
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/ChinaOcta-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
ChipsetExynos 2100 (5 nm) - International / Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/ChinaMediatek Dimensity 7300e (4 nm)
GPUMali-G78 MP14 - International Adreno 660 - USA/ChinaMali-G615 MC2
OSAndroid 11, up to 4 major Android upgrades, One UI 6.1Android 16, HIOS 16
MEMORY4 fields
SpecificationGalaxy S21Camon Slim
Card slotNoNo
Internal128GB, 256GB128GB 8GB RAM, 256GB 8GB RAM
RAM6GB RAM, 8GB RAM8 GB physical RAM
Storage/RAM variants128GB, 256GB; 6GB RAM, 8GB RAM128 GB / 256 GB; 8 GB physical RAM
MAIN CAMERA3 fields
SpecificationGalaxy S21Camon Slim
FeaturesLED flash, auto-HDR, panoramaLED Flash
MAIN CAMERA12 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 video50 MP, f/1.8, 23mm (wide), 1/1.56", 1.0µm, PDAF, OIS; 8 MP, f/2.2, 14mm, 112˚ (ultrawide)
Video8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS1080p@30fps
SELFIE CAMERA3 fields
SpecificationGalaxy S21Camon Slim
FeaturesHDRHDR
Selfie camera10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF32 MP, (wide)
Video4K@30/60fps, 1080p@30fps1080p@30fps
SOUND3 fields
SpecificationGalaxy S21Camon Slim
3.5mm jackNoNo
Dolby Atmos—Yes
LoudspeakerYes, with stereo speakersStereo speakers
COMMUNICATION6 fields
SpecificationGalaxy S21Camon Slim
Bluetooth5.0, A2DP, LEYes
NFCYesYes
PositioningGPS, GLONASS, BDS, GALILEOGPS
RadioFM radio (Snapdragon model only; market/operator dependent)FM radio
USBUSB Type-C 3.2, OTGUSB-C
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi DirectYes
FEATURES1 field
SpecificationGalaxy S21Camon Slim
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometerGeomagnetic Sensor | A+G Sensor | The ambient light and distance sensor | Infrared Remote Control | Electronic compass
BATTERY3 fields
SpecificationGalaxy S21Camon Slim
Capacity4000 mAh6000 mAh
Charging Type25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless45W wired
TypeLi-Ion 4000 mAhNon-removable Li-Po Battery
ADDITIONAL INFORMATION5 fields
SpecificationGalaxy S21Camon Slim
ColorsPhantom Gray, Phantom White, Phantom Violet, Phantom PinkNeo Mondrian, Gossamer White, Matisse Black, Rebel Pink, Van Gogh Blue, Burgundy Red
Compatibility—Global specification set
Launch Price (USD)$250.00 (reference only — see Price in Nigeria above for the actual retail price)—
ModelsSM-G991B, SM-G991B/DS, SM-G991U, SM-G991U1, SM-G991W, SM-G991N, SM-G9910, SM-G991Q, SCG09CN6
Price in Nigeria₦224,999 (Seller price)₦380,000 (Stored estimate)
SECURITY1 field
SpecificationGalaxy S21Camon Slim
SecurityBiometric security: Fingerprint (under display, ultrasonic).Biometric security: Fingerprint (under display, optical).

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