[ SAMSUNG ]
Smartphones
Samsung Galaxy S21 Ultra
Overall Score
63/100
Key Technical Specifications
Processor (CPU)
420330
Graphics (GPU)
186151
[ EXPERT VERDICT · SUMMARY ]
Samsung Galaxy S21 Ultra is an engineering-tested smartphones achieving an overall rating of 63/100. It is positioned for balanced everyday compute and power efficiency.
Benchmark Performance Scores
Normalized 0–100 Scale
Gaming
Rating: Poor
27/100
NanoReview Score
Rating: Average
63/100
Performance
Rating: Below Average
53/100
Detailed Technical Specifications
Battery
| Specification | Value |
|---|---|
| Battery type | Li-Ion |
| Capacity | 5000 mAh |
| Fast charging | Yes (54% in 30 min) |
| Full charging time | 1:11 hr |
| Gaming | 05:14 hr |
| Max charge power | 25 W |
| Replaceable | No |
| Reverse charging | Yes, (wireless) |
| Standby | 111 hr |
| Watching video | 13:59 hr |
| Web browsing | 07:58 hr |
| Wireless charging | Yes (15 W) |
Benchmarks
| Specification | Value |
|---|---|
| CPU | 420330 |
| Compute Score (GPU) | 6870 |
| GPU | 186151 |
| Memory | 193925 |
| Multi-core score | 3800 |
| Single-core score | 1486 |
| Total score | 1074182 |
| UX | 273776 |
Connectivity
| Specification | Value |
|---|---|
| 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 |
| Bluetooth features | LE, A2DP |
| Bluetooth version | 5.2 |
| GPS | GPS, GLONASS, Beidou, Galileo |
| Hybrid slot | No |
| Infrared port | No |
| LTE Cat* | 24 |
| Multi SIM mode | Standby |
| NFC* | Yes |
| Number of SIM* | 2 |
| Type of SIM card | Nano |
| USB features | - Charging- USB-Storage mode- USB-Host mode- OTG |
| USB type | USB Type-C |
| USB version | 3.2 |
| Wi-Fi features | - Dual Band- Wi-Fi MiMO- Wi-Fi Direct- Wi-Fi Hotspot- Wi-Fi Display |
| Wi-Fi standard | Wi-Fi 6E (802.11 a/b/g/n/ac/ax) |
| eSIM support* | Yes |
Design and build
| Specification | Value |
|---|---|
| Colors | Black, Silver, Gray, Blue |
| Fingerprint scanner | Yes, in-display |
| Frame material | Metal |
| Height | 165.1 mm (6.5 inches) |
| Rear material | Glass |
| Thickness | 8.9 mm (0.35 inches) |
| Waterproof | IP68 |
| Weight | 227 g (8.01 oz) |
| Width | 75.6 mm (2.98 inches) |
Display
| Specification | Value |
|---|---|
| Adaptive refresh rate | Yes (10-120 Hz) |
| Aspect ratio | 20:9 |
| Display features | - DCI-P3- Always-On Display |
| HDR support | Yes, HDR10+ |
| Max rated brightness | 1500 nits |
| PPI | 515 ppi |
| Refresh rate | 120 Hz |
| Resolution | 1440 x 3200 pixels |
| Screen protection | Gorilla Glass Victus |
| Screen-to-body ratio | 89.5% |
| Size | 6.8 inches |
| Type | Dynamic AMOLED |
DxOMark main camera tests
| Specification | Value |
|---|---|
| Bokeh | 70 |
| Preview | 67 |
| Samples | Photo samples of Samsung Galaxy S21 Ultra from DxOMark |
Main camera
| Specification | Value |
|---|---|
| 1080p video recording | Up to 60FPS |
| 4K video recording | Up to 60FPS |
| 8K video recording | Up to 24FPS |
| Angle of widest lens | 120° |
| Aperture | f/1.8 |
| Autofocus | Laser autofocus |
| Camera features | - Bokeh mode- Pro mode- RAW support |
| Flash | Dual LED |
| Focal length | 26 mm |
| Image resolution | 12000 x 9000 |
| Lenses | 1) Standard: 108 MP2) Telephoto: 10 MP3) Telephoto: 10 MP4) Ultrawide: 12 MP |
| Matrix | 108 megapixels |
| Pixel size | 0.8 micron |
| Sensor | Samsung S5KHM3 |
| Sensor size | 1/1.33" (≈ 0.75 inch) |
| Slow motion | 960 FPS (720p) |
| Stabilization | Optical |
| Zoom | Optical, 10x |
Memory
| Specification | Value |
|---|---|
| Channels | 2 |
| Memory card | No |
| Memory clock | 2750 MHz |
| Memory type | LPDDR5 |
| RAM size | 8 GB |
| Storage size | 128 GB |
| Storage type | UFS 3.1 |
Other
| Specification | Value |
|---|---|
| Announced | January 2021 |
| Category | Flagship |
| Launch price (MSRP) | $1200 |
| Release date | February 2021 |
| SAR (body) | 1.58 W/kg |
| SAR (head) | 0.71 W/kg |
| Sensors | - Hall-effect sensor- Barometer- Proximity sensor- Gyroscope- Accelerometer- Ambient light sensor- Compass- Fingerprint |
| Successor | -Samsung Galaxy S22 Ultra |
Performance
| Specification | Value |
|---|---|
| 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 |
| CPU cores | 8 (1 + 3 + 4) |
| Chipset | Samsung Exynos 2100 |
| FLOPS | ~765.2 GFLOPS |
| GPU clock | 854 MHz |
| GPU shading units | 448 |
| Graphics | Mali-G78 MP14 |
| Lithography process | 5 nanometers |
| Manufacturing | Samsung |
| Max clock | 2900 MHz |
| Neural processor (NPU) | Yes |
Recent User Tests
| Specification | Value |
|---|---|
| Date | Benchmark |
| 📘 2025-12-13(Alyas) | AnTuTu |
| 📘 2025-12-18(Alyas) | GeekBench CPU |
| 📘 2025-12-31(onegear) | AnTuTu |
| 📘 2026-01-18(Adhamious) | AnTuTu |
| 📘 2026-06-02(My name) | AnTuTu |
| 📘 2026-06-02(Tim) | AnTuTu |
| 📘 2026-07-22(Squizzyyy) | AnTuTu |
Selfie camera
| Specification | Value |
|---|---|
| Depth sensor (TOF 3D) | No |
| Megapixels | 40 megapixels |
| Photo | 133 |
| Video | 140 |
| Video resolution | 2160p (4K) at 60 FPS |
Software
| Specification | Value |
|---|---|
| OS size | 26.4 GB |
| OS updates | 2 years |
| Operating system | Android 11 (Can be upgraded to Android 15) |
| ROM | One UI 7.0 |
| Security updates | 4 years |
Sound
| Specification | Value |
|---|---|
| Dolby Atmos | Yes |
| FM radio | No |
| Headphone audio jack | No |
| Speakers | Stereo |
Strengths & Limitations
Key Advantages
- Comprehensive positive benchmark metrics recorded.
Key Considerations
- No major hardware limitations flagged during benchmark run.
Direct Competitors & Alternatives
OPPO
Oppo Find X9 Ultra
96/100
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HONOR
Honor Magic 8 Pro
94/100
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OPPO
Oppo Find X9 Pro
94/100
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ONEPLUS
OnePlus 15
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Methodology, Provenance & Verification
Score version 2026.1 · Data verified 2026-08-26 · Source: official manufacturer datasheets and standardized reproducible benchmark suites (Geekbench 6, Cinebench R24, 3DMark).