
Samsung
Samsung Galaxy S21 5G
₦301,350
₦322,875
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Samsung Galaxy S21 5G is a Samsung smartphone sold in Nigeria for about 301,350 naira, with 4GB RAM and 128GB of storage, a 6.2-inch screen and a 4000mAh battery. It supports 5G networks.
Best for
How it scores
#65 of 81 in Upper mid-range (₦300k–₦500k)
Good daylight photos; expect softer results at night.
Basic selfie camera.
4,000mAh with 25W charging — may need a top-up before evening.
Dynamic AMOLED at 120Hz — bright, smooth and great for videos.
Samsung Exynos 2100 with 4GB RAM — handles WhatsApp, TikTok and light games well.
Fair price for what you get.
Scores are based on published specifications compared with other phones sold in Nigeria, not hands-on lab testing. Rank phones by what matters to you · See leaderboards
What's good
- 128GB storage for photos and apps
- 5G ready
What's not
- Smaller battery needs a midday top-up
Full specifications
Display
| Type | Dynamic AMOLED |
|---|---|
| Size | 6.2 inches |
| Resolution | 1080 x 2400 pixels |
| Aspect ratio | 20:9 |
| PPI | 421 ppi |
| Refresh rate | 120 Hz |
| Adaptive refresh rate | Yes (48-120 Hz) |
| Max rated brightness | 800 nits |
| HDR support | Yes, HDR10+ |
| Screen protection | Gorilla Glass Victus |
| Screen-to-body ratio | 85.9% |
| Display features | - DCI-P3 · - Always-On Display |
| RGB color space | 99.5% |
| PWM | 240 Hz |
| Response time | 5 ms |
| Contrast | ∞ Infinity |
Design and build
| Height | 151.7 mm (5.97 inches) |
|---|---|
| Width | 71.2 mm (2.8 inches) |
| Thickness | 7.9 mm (0.31 inches) |
| Weight | 169 g (5.96 oz) |
| Waterproof | IP68 |
| Rear material | Plastic |
| Frame material | Metal |
| Colors | White, Gray, Pink, Purple |
| Fingerprint scanner | Yes, in-display |
Performance
| Chipset | Samsung Exynos 2100 |
|---|---|
| Max clock | 2900 MHz |
| CPU cores | 8 (1 + 3 + 4) |
| Architecture | - 4 cores at 2.2 GHz: Cortex-A55 · - 3 cores at 2.81 GHz: Cortex-A78 · - 1 core at 2.91 GHz: Cortex-X1 |
| Manufacturing | Samsung |
| Lithography process | 5 nanometers |
| Neural processor (NPU) | Yes |
| Graphics | Mali-G78 MP14 |
| GPU shading units | 448 |
| GPU clock | 854 MHz |
| FLOPS | ~765.2 GFLOPS |
Memory
| RAM size | 8 GB |
|---|---|
| Memory type | LPDDR5 |
| Memory clock | 2750 MHz |
| Channels | 2 |
| Storage size | 128 GB |
| Storage type | UFS 3.1 |
| Memory card | No |
Software
| Operating system | Android 11 (Can be upgraded to Android 15) |
|---|---|
| ROM | One UI 7.0 |
| OS size | 28.1 GB |
| OS updates | 2 years |
| Security updates | 4 years |
Battery
| Capacity | 4000 mAh |
|---|---|
| Max charge power | 25 W |
| Battery type | Li-Ion |
| Replaceable | No |
| Wireless charging | Yes (15 W) |
| Reverse charging | Yes, (wireless) |
| Bypass charging | No |
| Fast charging | Yes (55% in 30 min) |
| Full charging time | 1:13 hr |
| Web browsing | 06:01 hr |
| Watching video | 11:06 hr |
| Gaming | 04:21 hr |
| Standby | 95 hr |
Main camera
| Matrix | 12 megapixels |
|---|---|
| Image resolution | 4000 x 3000 |
| Zoom | Optical, 1.1x |
| Flash | Dual LED |
| Stabilization | Optical |
| 8K video recording | Up to 24FPS |
| 4K video recording | Up to 60FPS |
| 1080p video recording | Up to 60FPS |
| Slow motion | 960 FPS (720p) |
| Angle of widest lens | 120° |
| Lenses | 1) Standard: 12 MP · 2) Telephoto: 64 MP · 3) Ultrawide: 12 MP |
| Camera features | - Bokeh mode · - Pro mode · - RAW support |
| Image resolution | 12 MP |
| Aperture | f/1.8 |
| Focal length | 26 mm |
| Sensor | Sony IMX555 |
| Sensor size | 1/1.76" (≈ 0.57 inch) |
| Pixel size | 1.8 micron |
| Autofocus | Phase autofocus (Dual Pixel) |
| Stabilization | Optical |
| Image resolution | 64 MP |
| Aperture | f/2.0 |
| Focal length | 28 mm |
| Sensor | Samsung Bright S5KGW2 |
| Sensor size | 1/1.72" (≈ 0.58 inch) |
| Pixel size | 0.8 micron |
| Stabilization | Optical |
| Image resolution | 12 MP |
| Aperture | f/2.2 |
| Focal length | 13 mm |
| Sensor | Sony IMX563 |
| Sensor size | 1/2.55" (≈ 0.39 inch) |
| Pixel size | 1.4 micron |
| Stabilization | Digital |
Selfie camera
| Megapixels | 10 megapixels |
|---|---|
| Image resolution | 3872 x 2592 |
| Aperture | f/2.2 |
| Focal length | 26 mm |
| Sensor | Sony IMX374 |
| Sensor size | 1/3.24" (≈ 0.31 inch) |
| Pixel size | 1.22 micron |
| Autofocus | Phase autofocus (Dual Pixel) |
| Stabilization | Digital |
| Video resolution | 2160p (4K) at 60 FPS |
| Depth sensor (TOF 3D) | No |
Connectivity
| Wi-Fi standard | Wi-Fi 6 (802.11 a/b/g/n/ac/ax) |
|---|---|
| Wi-Fi features | - Dual Band · - Wi-Fi MiMO · - Wi-Fi Direct · - Wi-Fi Hotspot · - Wi-Fi Display |
| Bluetooth version | 5 |
| Bluetooth features | LE, A2DP |
| USB type | USB Type-C |
| USB version | 3.2 |
| USB features | - Charging · - USB-Storage mode · - USB-Host mode · - OTG |
| GPS | GPS, GLONASS, Beidou, Galileo |
| NFC* | Yes |
| Infrared port | No |
| Number of SIM* | 2 |
| Type of SIM card | Nano |
| Multi SIM mode | Standby |
| eSIM support* | Yes |
| Hybrid slot | No |
| LTE Cat* | 24 |
| 2G network | GSM 850, 900, 1800, 1900 MHz |
| 3G network | WCDMA Band 1, 2, 4, 5, 8 |
| 4G network | LTE 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 |
| 5G support | Yes |
Sound
| Speakers | Stereo |
|---|---|
| Headphone audio jack | No |
| FM radio | No |
| Dolby Atmos | Yes |
Other
| Category | Flagship |
|---|---|
| Announced | January 2021 |
| Release date | February 2021 |
| Launch price (MSRP) | $800 |
| Successor | - Samsung Galaxy S22 |
| SAR (head) | 0.46 W/kg |
| SAR (body) | 1.51 W/kg |
| Sensors | - Hall-effect sensor · - Barometer · - Proximity sensor · - Gyroscope · - Accelerometer · - Ambient light sensor · - Compass · - Fingerprint |
Display & design
| Screen size | 6.2 inches |
|---|---|
| Screen type | Dynamic AMOLED |
| Resolution | 1080 x 2400 pixels |
| Refresh rate | 120Hz |
| Dimensions | Not verified |
| Weight | 169g |
| Colours | Not verified |
| Water resistance | IP68 |
Performance & storage
| Processor | Samsung Exynos 2100 |
|---|---|
| RAM | 4GB |
| Storage | 128GB |
| Operating system | Android 11 |
| Software support | Not verified |
Cameras
| Rear camera | 12MP + 64MP + 12MP |
|---|---|
| Front camera | 10MP |
| Video | Not verified |
Battery & connectivity
| Battery | 4000mAh |
|---|---|
| Charging | 25W |
| Network | 5G |
| 5G | Yes |
| SIM | Dual SIM |
| NFC | Yes |
| Fingerprint | Not verified |
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