Oppo Find X9 Ultra vs Samsung Galaxy S21 Ultra
[ VERDICT ]
Winner: Oppo Find X9 Ultra (96/100)
Oppo Find X9 Ultra leads overall with a score of 96/100 compared to Samsung Galaxy S21 Ultra (63/100), offering superior measured performance and technical specifications.
Benchmark Performance Comparison
Normalized Lab Scores| Benchmark | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Gaming | 96.0 Excellent WINNER | 27.0 Poor |
| NanoReview Score | 96.0 Excellent WINNER | 63.0 Average |
| Performance | 99.0 Excellent WINNER | 53.0 Below Average |
Detailed Technical Specifications
Battery
| Specification | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Battery type | Silicon-Carbon (Si/C) | Li-Ion |
| Bypass charging | Yes | — |
| Capacity | 7050 mAh | 5000 mAh |
| Fast charging | Yes (75% in 30 min) | Yes (54% in 30 min) |
| Full charging time | 0:45 hr | 1:11 hr |
| Gaming | 08:23 hr | 05:14 hr |
| Max charge power | 100 W | 25 W |
| Replaceable | No | No |
| Reverse charging | Yes, (wireless) | Yes, (wireless) |
| Standby | 144 hr | 111 hr |
| Watching video | 26:15 hr | 13:59 hr |
| Web browsing | 16:45 hr | 07:58 hr |
| Wireless charging | Yes (50 W) | Yes (15 W) |
Benchmarks
| Specification | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| CPU | 1184661 | 420330 |
| Compute Score (GPU) | 27916 | 6870 |
| GPU | 1577144 | 186151 |
| Memory | 509054 | 193925 |
| Multi-core score | 10744 | 3800 |
| Single-core score | 3536 | 1486 |
| Total score | 4231988 | 1074182 |
| UX | 961129 | 273776 |
Connectivity
| Specification | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| 2G network | GSM 850/900/1800/1900MHz | GSM 850, 900, 1800, 1900 MHz |
| 3G network | WCDMA 1/2/4/5/6/8/19 | WCDMA Band 1, 2, 4, 5, 8 |
| 4G network | LTE 1/2/3/4/5/7/8/12/13/17/18/19/20/25/26/28/32/66/71 | 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 | Yes |
| Bluetooth features | LE | LE, A2DP |
| Bluetooth version | 6.0 | 5.2 |
| DisplayPort | Yes | — |
| GPS | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC | GPS, GLONASS, Beidou, Galileo |
| Hybrid slot | No | No |
| Infrared port | Yes | No |
| Multi SIM mode | Standby | Standby |
| NFC* | Yes | Yes |
| Number of SIM* | 2 | 2 |
| Type of SIM card | Nano | Nano |
| USB features | - Charging- USB-Storage mode- OTG | - Charging- USB-Storage mode- USB-Host mode- OTG |
| USB type | USB Type-C | USB Type-C |
| USB version | 3.2 | 3.2 |
| Wi-Fi features | - Dual Band- Wi-Fi MiMO- Wi-Fi Direct- Wi-Fi Hotspot- Wi-Fi Display | - Dual Band- Wi-Fi MiMO- Wi-Fi Direct- Wi-Fi Hotspot- Wi-Fi Display |
| Wi-Fi standard | Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) | Wi-Fi 6E (802.11 a/b/g/n/ac/ax) |
| eSIM support* | Yes | Yes |
| LTE Cat* | — | 24 |
Design and build
| Specification | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Advanced cooling | Vapor chamber | — |
| Colors | White, Green, Orange | Black, Silver, Gray, Blue |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
| Frame material | Metal | Metal |
| Height | 163.16 mm (6.42 inches) | 165.1 mm (6.5 inches) |
| Rear material | Glass | Glass |
| Thickness | 8.65 mm (0.34 inches) | 8.9 mm (0.35 inches) |
| Waterproof | IP69 | IP68 |
| Weight | 235 g (8.29 oz) | 227 g (8.01 oz) |
| Width | 76.97 mm (3.03 inches) | 75.6 mm (2.98 inches) |
Display
| Specification | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Adaptive refresh rate | Yes (1-120 Hz) | Yes (10-120 Hz) |
| Aspect ratio | 19.8:9 | 20:9 |
| Contrast | ∞ Infinity | — |
| Display features | - DCI-P3- Always-On Display- DC Dimming | - DCI-P3- Always-On Display |
| HDR support | Yes, Dolby Vision | Yes, HDR10+ |
| Max rated brightness | 1800 nits | 1500 nits |
| Max rated brightness in HDR | 3600 nits | — |
| PPI | 510 ppi | 515 ppi |
| PWM | 90 Hz | — |
| RGB color space | 99.5% | — |
| Refresh rate | 144 Hz | 120 Hz |
| Resolution | 1440 x 3168 pixels | 1440 x 3200 pixels |
| Response time | 1 ms | — |
| Screen protection | Gorilla Glass Victus 2 | Gorilla Glass Victus |
| Screen-to-body ratio | 90% | 89.5% |
| Size | 6.82 inches | 6.8 inches |
| Touch sampling rate | 300 Hz | — |
| Type | AMOLED | Dynamic AMOLED |
DxOMark main camera tests
| Specification | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Bokeh | 185 | 70 |
| Samples | Photo samples of Oppo Find X9 Ultra from DxOMark | Photo samples of Samsung Galaxy S21 Ultra from DxOMark |
| Preview | — | 67 |
Main camera
| Specification | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| 1080p video recording | Up to 240FPS | Up to 60FPS |
| 4K video recording | Up to 120FPS | Up to 60FPS |
| 8K video recording | Up to 30FPS | Up to 24FPS |
| Angle of widest lens | 120° | 120° |
| Aperture | f/1.5 | f/1.8 |
| Autofocus | Phase autofocus | Laser autofocus |
| Camera features | - Bokeh mode- Pro mode | - Bokeh mode- Pro mode- RAW support |
| Flash | LED | Dual LED |
| Focal length | 23 mm | 26 mm |
| Image resolution | 16320 x 12240 | 12000 x 9000 |
| Lenses | 1) Standard: 200 MP2) Telephoto: 200 MP3) Telephoto: 50 MP4) Ultrawide: 50 MP | 1) Standard: 108 MP2) Telephoto: 10 MP3) Telephoto: 10 MP4) Ultrawide: 12 MP |
| Matrix | 200 megapixels | 108 megapixels |
| Pixel size | 0.7 micron | 0.8 micron |
| Sensor | Sony LYTIA-901 | Samsung S5KHM3 |
| Sensor size | 1/1.12" (≈ 0.89 inch) | 1/1.33" (≈ 0.75 inch) |
| Slow motion | 480 FPS (720p) | 960 FPS (720p) |
| Stabilization | Optical | Optical |
| Zoom | Optical, 10x | Optical, 10x |
Memory
| Specification | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Channels | 4 | 2 |
| Memory card | No | No |
| Memory clock | 5300 MHz | 2750 MHz |
| Memory type | LPDDR5X | LPDDR5 |
| RAM size | 12 GB | 8 GB |
| Storage size | 256 GB | 128 GB |
| Storage type | UFS 4.1 | UFS 3.1 |
Other
| Specification | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Announced | April 2026 | January 2021 |
| Bundled charger | Not included | — |
| Category | Flagship | Flagship |
| Launch price (MSRP) | $1299 | $1200 |
| Release date | May 2026 | February 2021 |
| Sensors | - Proximity sensor- Gyroscope- Accelerometer- Ambient light sensor- Compass- Fingerprint | - Hall-effect sensor- Barometer- Proximity sensor- Gyroscope- Accelerometer- Ambient light sensor- Compass- Fingerprint |
| SAR (body) | — | 1.58 W/kg |
| SAR (head) | — | 0.71 W/kg |
| Successor | — | -Samsung Galaxy S22 Ultra |
Performance
| Specification | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Architecture | - 6 cores at 3.63 GHz: Oryon Gen 3 Performance- 2 cores at 4.61 GHz: Oryon Gen 3 Prime | - 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 (2 + 6) | 8 (1 + 3 + 4) |
| Chipset | Qualcomm Snapdragon 8 Elite Gen 5 | Samsung Exynos 2100 |
| FLOPS | ~3686.4 GFLOPS | ~765.2 GFLOPS |
| GPU clock | 1200 MHz | 854 MHz |
| GPU shading units | 1536 | 448 |
| Graphics | Adreno 840 | Mali-G78 MP14 |
| L3 cache | 12 MB | — |
| Lithography process | 3 nanometers | 5 nanometers |
| Manufacturing | TSMC | Samsung |
| Max clock | 4600 MHz | 2900 MHz |
| Neural processor (NPU) | Hexagon | Yes |
Recent User Tests
| Specification | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Date | Benchmark | Benchmark |
| 📘 2026-07-05(ak26ru) | AnTuTu | — |
| 📘 2026-07-15(IlyaLub) | AnTuTu | — |
| 📘 2026-07-19(KY.w) | GeekBench GPU | — |
| 📘 2026-07-21(IlyaLub) | AnTuTu | — |
| 📘 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 | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Depth sensor (TOF 3D) | No | No |
| Megapixels | 50 megapixels | 40 megapixels |
| Video resolution | 2160p (4K) at 60 FPS | 2160p (4K) at 60 FPS |
| Photo | — | 133 |
| Video | — | 140 |
Software
| Specification | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| OS size | 31.6 GB | 26.4 GB |
| OS updates | 5 years | 2 years |
| Operating system | Android 16 | Android 11 (Can be upgraded to Android 15) |
| ROM | ColorOS 16 | One UI 7.0 |
| Security updates | 6 years | 4 years |
Sound
| Specification | Oppo Find X9 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Dolby Atmos | No | Yes |
| FM radio | No | No |
| Headphone audio jack | No | No |
| Speakers | Stereo | Stereo |
Looking for More Comparisons?
Browse all available head-to-head comparisons or select new devices in the comparison hub.