Released 2021-01-29
Samsung Galaxy S21
The Samsung Galaxy S21 features a 6.2-inch Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak) display with 120Hz refresh rate. It uses the Exynos 2100 (5 nm) - International Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China processor. Storage options include 128GB, 256GB. Rear cameras: 12 MP. Battery capacity is 4000 mAh, with 25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless charging. It runs Android 11, up to 4 major Android upgrades, One UI 6.1.
Price in Nigeria
₦382,500
- 6.2-inch Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak) · 120Hz
- Exynos 2100 (5 nm) - International Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
- 6GB RAM, 8GB RAM · 128GB, 256GB
- 4000 mAh · 25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
Owner Score
How people who own the Galaxy S21 rate it, from 104 public comments.
At launch
50
104 mentions
Now
—
Not enough feedback
Breakdown by aspect
Category median: 78 · Updated 19 Sep 2026
Medium confidenceScores are calculated from assessed owner comments and adjusted against the median for this category.
Full Specifications
| LAUNCH DATE | |
|---|---|
| Announced | January 29, 2021 |
| Released | 2021-01-29 |
| Status | Available |
| NETWORK | |
| Technology | 5G/4G/LTE/GSM |
| 3G Bands | Not supported |
| Speed | LTE, 5G |
| BODY | |
| Dimensions | 151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in) |
| Weight | 169 g (Sub6), 171 g (mmWave) (5.96 oz) |
| Build | Glass front (Gorilla Glass Victus), plastic back, aluminum frame |
| SIM | Nano-SIM + eSIM Nano-SIM + Nano-SIM + eSIM (max 2 at a time) |
| DISPLAY | |
| Type | Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak) |
| Size | 6.2 inches, 94.1 cm2 (~87.2% screen-to-body ratio) |
| Screen-to-body | ~87.2% |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~421 ppi density) |
| Refresh Rate | 120Hz |
| Brightness | 1300 nits (peak) |
| Protection | Corning Gorilla Glass Victus |
| PLATFORM | |
| OS | Android 11, up to 4 major Android upgrades, One UI 6.1 |
| Chipset | Exynos 2100 (5 nm) - International Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China |
| CPU | Octa-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 |
| GPU | Mali-G78 MP14 - International Adreno 660 - USA/China |
| MEMORY | |
| Card slot | No |
| RAM | 6GB RAM, 8GB RAM |
| Internal | 128GB, 256GB |
| Storage/RAM variants | 128GB, 256GB; 6GB RAM, 8GB RAM |
| MAIN CAMERA | |
| Main camera | 12 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 |
| Features | LED flash, auto-HDR, panorama |
| Video | 8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS |
| SELFIE CAMERA | |
| Selfie camera | 10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF |
| Features | HDR |
| Video | 4K@30/60fps, 1080p@30fps |
| SOUND | |
| Loudspeaker | Yes, with stereo speakers |
| 3.5mm jack | No |
| COMMUNICATION | |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| Bluetooth | 5.0, A2DP, LE |
| Positioning | GPS, GLONASS, BDS, GALILEO |
| NFC | Yes |
| Radio | FM radio (Snapdragon model only; market/operator dependent) |
| USB | USB Type-C 3.2, OTG |
| FEATURES | |
| Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer |
| BATTERY | |
| Type | Li-Ion 4000 mAh |
| Charging Type | 25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless |
| ADDITIONAL INFORMATION | |
| Colors | Phantom Gray, Phantom White, Phantom Violet, Phantom Pink |
| Models | SM-G991B, SM-G991B/DS, SM-G991U, SM-G991U1, SM-G991W, SM-G991N, SM-G9910, SM-G991Q, SCG09 |
| Price in Nigeria | ₦382,500 |
| SECURITY | |
| Security | Biometric security: Fingerprint (under display, ultrasonic). |
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