Samsung Galaxy S21 Ultra vs OnePlus 13
62
out of 100
VS
87
out of 100
Here we compared two flagship smartphones: the 6.8-inch Samsung Galaxy S21 Ultra (with Exynos 2100) that was released on January 14, 2021, against the OnePlus 13, which is powered by Qualcomm Snapdragon 8 Elite and came out 3 years and 10 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.
Select the amount of RAM to evaluate performance and value for money more precisely
Key differences
Reasons to consider the Samsung Galaxy S21 Ultra
- The rear camera has a 10x optical zoom
- Slow-motion recording at 960FPS
- Supports Dolby Atmos sound technology
Reasons to consider the OnePlus 13
- 2.9x better performance in AnTuTu Benchmark (3145K versus 1074K)
- Shows 42% longer battery life (31:17 vs 22:05 hours)
- Comes with 1000 mAh larger battery capacity: 6000 vs 5000 mAh
- Has 50% more RAM: 12GB versus 8GB
- Supports higher wattage charging (100W versus 25W)
- Newer Bluetooth version (v5.4)
- Waterproof body (IP69 classification)
- Compatible with Wi-Fi 7 wireless networks
- Delivers 18% higher peak brightness (1194 against 1013 nits)
- More recent OS version: Android 16 versus 15
- The phone is 3 years and 10 months newer
- Has a built-in infrared port
Review
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
Select your primary usage scenario to get a more accurate DeviceFacts Score
Value for money (Beta)
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | Dynamic AMOLED | AMOLED |
| Size | 6.8 inches | 6.82 inches |
| Resolution | 1440 x 3200 pixels | 1440 x 3168 pixels |
| Aspect ratio | 20:9 | 20:9 |
| PPI | 515 ppi | 510 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | Yes (10-120 Hz) | Yes (1-120 Hz) |
| Max rated brightness | 1500 nits | 1600 nits |
| Max rated brightness in HDR | - | 4500 nits |
| HDR support | Yes, HDR10+ | Yes, Dolby Vision |
| Screen protection | Gorilla Glass Victus | Ceramic Guard |
| Screen-to-body ratio | 89.5% | 90.1% |
| Display features | - DCI-P3 - Always-On Display |
- DCI-P3 - Always-On Display - DC Dimming |
| RGB color space | - | 99.6% |
| PWM | - | 120 Hz |
| Response time | - | 2 ms |
| Contrast | - | ∞ Infinity |
Peak brightness test (auto)
Design and build
| Height | 165.1 mm (6.5 inches) | 162.9 mm (6.41 inches) |
| Width | 75.6 mm (2.98 inches) | 76.5 mm (3.01 inches) |
| Thickness | 8.9 mm (0.35 inches) | 8.5 mm (0.33 inches) |
| Weight | 227 g (8.01 oz) | 213 g (7.51 oz) |
| Waterproof | IP68 | IP69 |
| Advanced cooling | - | Vapor chamber |
| Rear material | Glass | Glass |
| Frame material | Metal | Metal |
| Colors | Black, Silver, Gray, Blue | White, Black, Blue |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
| Repairability | - | Good (3.71/5) |
| Drop resistance | - | Average (D) · 45 drops |
Screen-to-body ratio
Performance
| Chipset | Samsung Exynos 2100 | Qualcomm Snapdragon 8 Elite |
| Max clock | 2900 MHz | 4320 MHz |
| CPU cores | 8 (1 + 3 + 4) | 8 (2 + 6) |
| 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 |
- 6 cores at 3.53 GHz: Oryon (Phoenix M) - 2 cores at 4.32 GHz: Oryon (Phoenix L) |
| L3 cache | - | 8 MB |
| Manufacturing | Samsung | TSMC |
| Lithography process | 5 nanometers | 3 nanometers |
| Neural processor (NPU) | Yes | Hexagon |
| Graphics | Mali-G78 MP14 | Adreno 830 |
| GPU shading units | 448 | 1536 |
| GPU clock | 854 MHz | 1100 MHz |
| FLOPS | ~765.2 GFLOPS | ~3379.2 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
| Compute Score (GPU) | 6870 | 24988 |
| Single-core score | 1486 | 2899 |
| Multi-core score | 3800 | 8945 |
AnTuTu Benchmark 11
| CPU | 420330 | 946374 |
| GPU | 186151 | 1154478 |
| Memory | 193925 | 370624 |
| UX | 273776 | 674106 |
| Total score | 1074182 | 3145582 |
| Samples | [11 tests] | [33 tests] |
3DMark Steel Nomad Light
| Stability | - | 74% |
| Graphics test | - | 18 FPS |
| Graphics score | - | 2455 |
3DMark Solar Bay
| Graphics test | - | 43 FPS |
| Section 1 | - | 49 FPS |
| Section 2 | - | 44 FPS |
| Section 3 | - | 37 FPS |
| Graphics score | - | 11360 |
3DMark Wild Life Extreme
| Stability | - | 84% |
| Graphics test | - | 37 FPS |
| Graphics score | - | 6241 |
PCMark 3.0
| Web score | - | 14928 |
| Video editing | - | 6982 |
| Photo editing | - | 28408 |
| Data manipulation | - | 14424 |
| Writing score | - | 22334 |
AnTuTu 11 Ranking List (#85th place)
Recent User Tests
Samsung Galaxy S21 Ultra
| Date | Benchmark | Result |
|---|---|---|
| 📘 2026-10-06 (Nurik) | AnTuTu 12 | 900228 |
| 📘 2026-09-30 -> fh_hxx19 | AnTuTu 12 | 1191592 |
| 📘 2026-09-30 -> fh_hxx19 | AnTuTu 12 | 1191592 |
| 📘 2026-07-22 (Squizzyyy) | AnTuTu 11 | 857016 |
| 📘 2026-06-02 (My name) | AnTuTu 11 | 1271841 |
OnePlus 13
| Date | Benchmark | Result |
|---|---|---|
| 📘 2026-10-13 (Phúc Lợi) | AnTuTu 12 | 3331523 |
| 📘 2026-10-09 (Prigogin) | AnTuTu 12 | 3195605 |
| 📘 2026-09-25 (InDominusRex) | AnTuTu 12 | 3200877 |
| 📘 2026-09-22 (Keremss) | Geekbench 6 CPU | 3032 / 9438 |
| 📘 2026-08-28 -> pavlikk69 | AnTuTu 11 | 3139994 |
Memory
| RAM size | 8 GB | 12 GB |
| Memory type | LPDDR5 | LPDDR5X |
| Memory clock | 2750 MHz | 5300 MHz |
| Channels | 2 | 4 |
| Storage size | 128 GB | 256 GB |
| Storage type | UFS 3.1 | UFS 4.0 |
| Memory card | No | No |
Software
| Operating system | Android 11 (Can be upgraded to Android 15) | Android 15 (Can be upgraded to Android 16) |
| ROM | One UI 7.0 | OxygenOS 16 |
| OS size | 26.4 GB | 54 GB |
| OS updates | 2 years | 4 years |
| Security updates | 4 years | 6 years |
Battery
| Capacity | 5000 mAh | 6000 mAh |
| Max charge power | 25 W | 100 W |
| Battery type | Li-Ion | Silicon-Carbon (Si/C) |
| Replaceable | No | No |
| Wireless charging | Yes (15 W) | Yes (50 W) |
| Reverse charging | Yes, (wireless) | Yes, (wireless) |
| Bypass charging | - | Yes |
| Fast charging | Yes (54% in 30 min) | Yes (55% in 15 min) |
| Full charging time | 1:11 hr | 0:35 hr |
| Battery cycles | - | 1000 cycles |
| Web browsing | 07:58 hr | 13:42 hr |
| Watching video | 13:59 hr | 23:46 hr |
| Gaming | 05:14 hr | 06:05 hr |
| Standby | 111 hr | 120 hr |
General battery life
Smartphones With Long Battery Life (#34th place)
Main camera
| Matrix | 108 megapixels | 50 megapixels |
| Image resolution | 12000 x 9000 | 8192 x 6144 |
| Zoom | Optical, 10x | Optical, 3x |
| Flash | Dual LED | Dual LED |
| Stabilization | Optical | Optical |
| 8K video recording | Up to 24FPS | Up to 30FPS |
| 4K video recording | Up to 60FPS | Up to 60FPS |
| 1080p video recording | Up to 60FPS | Up to 60FPS |
| Slow motion | 960 FPS (720p) | 240 FPS (1080p) |
| Angle of widest lens | 120° | 120° |
| Lenses | 1) Standard: 108 MP 2) Telephoto: 10 MP 3) Telephoto: 10 MP 4) Ultrawide: 12 MP |
1) Standard: 50 MP 2) Telephoto: 50 MP 3) Ultrawide: 50 MP |
| Camera features | - Bokeh mode - Pro mode - RAW support |
- Bokeh mode - Pro mode - RAW support |
| Image resolution | 108 MP | 50 MP |
| Aperture | f/1.8 | f/1.6 |
| Focal length | 26 mm | 23 mm |
| Sensor | Samsung S5KHM3 | Sony LYTIA-808 |
| Sensor size | 1/1.33" (≈ 0.75 inch) | 1/1.4" (≈ 0.71 inch) |
| Pixel size | 0.8 micron | 1.12 micron |
| Autofocus | Laser autofocus | Phase autofocus |
| Stabilization | Optical | Optical |
| Image resolution | 10 MP | 50 MP |
| Aperture | f/4.9 | f/2.6 |
| Focal length | 240 mm | 73 mm |
| Sensor | Samsung S5K3J1 | Sony LYT-600 |
| Sensor size | 1/2.65" (≈ 0.38 inch) | 1/1.95" (≈ 0.51 inch) |
| Pixel size | 1.22 micron | 0.8 micron |
| Stabilization | Optical | Optical |
| Image resolution | 12 MP | 50 MP |
| Aperture | f/2.2 | f/2.0 |
| Focal length | 13 mm | 15 mm |
| Sensor | Sony IMX563 | Samsung S5KJN5 |
| Sensor size | 1/2.55" (≈ 0.39 inch) | 1/2.75" (≈ 0.36 inch) |
| Pixel size | 1.4 micron | 0.64 micron |
| Stabilization | Digital | Digital |
DxOMark main camera tests
Photo quality
Video quality
Generic main camera score
| Bokeh | 70 | - |
| Preview | 67 | - |
| Zoom | 106 | - |
| Samples | Photo samples of Samsung Galaxy S21 Ultra from DxOMark | - |
Selfie camera
| Megapixels | 40 megapixels | 32 megapixels |
| Image resolution | 7864 x 5200 | 6560 x 4928 |
| Aperture | f/2.2 | f/2.4 |
| Focal length | 26 mm | 21 mm |
| Sensor | Samsung S5KGH1 | Sony IMX615 |
| Sensor size | 1/2.65" (≈ 0.38 inch) | 1/2.74" (≈ 0.36 inch) |
| Pixel size | 0.7 micron | 0.8 micron |
| Autofocus | Phase autofocus | No |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 60 FPS | 2160p (4K) at 60 FPS |
| Depth sensor (TOF 3D) | No | No |
DxOMark front camera
| Photo | 133 | - |
| Video | 140 | - |
Connectivity
| Wi-Fi standard | Wi-Fi 6E (802.11 a/b/g/n/ac/ax) | Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) |
| 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 |
| Bluetooth version | 5.2 | 5.4 |
| Bluetooth features | LE, A2DP | LE |
| USB type | USB Type-C | USB Type-C |
| USB version | 3.2 | 3.2 |
| USB features | - Charging - USB-Storage mode - USB-Host mode - OTG |
- Charging - USB-Storage mode - OTG |
| DisplayPort | - | Yes |
| GPS | GPS, GLONASS, Beidou, Galileo | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC |
| NFC* | Yes | Yes |
| Infrared port | No | Yes |
| Number of SIM* | 2 | 2 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support* | Yes | Yes |
| Hybrid slot | No | No |
| LTE Cat* | 24 | - |
| 5G support | Yes | Yes |
Sound
| Speakers | Stereo | Stereo |
| Headphone audio jack | No | No |
| FM radio | No | No |
| Dolby Atmos | Yes | No |
Speakers test
Max loudness
Other
| Category | Flagship | Flagship |
| Announced | January 2021 | October 2024 |
| Release date | February 2021 | January 2025 |
| Launch price (MSRP) | $1200 | $899 |
| Successor | - Samsung Galaxy S22 Ultra | - OnePlus 15 |
| SAR (head) | 0.71 W/kg | - |
| SAR (body) | 1.58 W/kg | - |
| Sensors | - Hall-effect sensor - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Hall-effect sensor - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | - | Yes, 100 W |
Further details
Notes on OnePlus 13:
- The "Arctic Dawn" and "Black Eclipse" models are 8.5 mm thick and weigh 213g, while "Midnight Ocean" is 8.9 mm and 210g.
- The Chinese and Indian versions do not support eSIM.
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
Conclusion
After analyzing all the data, we think that the OnePlus 13 is definitely a better buy.
Cast your vote
Total votes: 9
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