Vivo X300 Ultra vs OnePlus 15
Here we compared two flagship smartphones: the 6.82-inch Vivo X300 Ultra (with Qualcomm Snapdragon 8 Elite Gen 5) that was released on March 30, 2026, against the OnePlus 15, which is powered by Qualcomm Snapdragon 8 Elite Gen 5 and came out 5 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.
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Key differences
Reasons to consider the Vivo X300 Ultra
- The rear camera has a 3.7x optical zoom
- 13% higher pixel density (510 vs 450 PPI)
- Supports Dolby Atmos sound technology
Reasons to consider the OnePlus 15
- Shows 34% longer battery life (39:14 vs 29:11 hours)
- Higher display refresh rate – 165 Hz
- Comes with 700 mAh larger battery capacity: 7300 vs 6600 mAh
- Slow-motion recording at 480FPS
- Supports higher wattage charging (120W versus 100W)
- Weighs 21 grams less
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 | AMOLED | AMOLED |
| Size | 6.82 inches | 6.78 inches |
| Resolution | 1440 x 3168 pixels | 1272 x 2772 pixels |
| Aspect ratio | 19.8:9 | 19.5:9 |
| PPI | 510 ppi | 450 ppi |
| Refresh rate | 144 Hz | 165 Hz |
| Adaptive refresh rate | Yes (1-144 Hz) | Yes (1-120 Hz) |
| Max rated brightness | 1800 nits | 1800 nits |
| Max rated brightness in HDR | 4500 nits | 6000 nits |
| HDR support | Yes, Dolby Vision | Yes, Dolby Vision |
| Touch sampling rate | - | 330 Hz |
| Screen protection | Armor glass | Gorilla Glass Victus 2 |
| Screen-to-body ratio | 90.3% | 91.2% |
| Display features | - DCI-P3 - Always-On Display - DC Dimming |
- DCI-P3 - Always-On Display - DC Dimming |
| RGB color space | 99.8% | 99.9% |
| PWM | 110 Hz | 120 Hz |
| Response time | 1 ms | 3 ms |
| Contrast | ∞ Infinity | ∞ Infinity |
Peak brightness test (auto)
Design and build
| Height | 162.98 mm (6.42 inches) | 161.42 mm (6.36 inches) |
| Width | 76.81 mm (3.02 inches) | 76.67 mm (3.02 inches) |
| Thickness | 8.49 mm (0.33 inches) | 8.1 mm (0.32 inches) |
| Weight | 232 g (8.18 oz) | 211 g (7.44 oz) |
| Waterproof | IP69 | IP69 |
| Advanced cooling | Vapor chamber | Vapor chamber |
| Rear material | Glass | Glass |
| Frame material | Metal | Metal |
| Colors | White, Black, Green | Black, Gold, Purple |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
| Repairability | Good (3/5) | Good (3.69/5) |
| Drop resistance | Very good (B) · 180 drops | Good (C) · 90 drops |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite Gen 5 |
| Max clock | 4608 MHz | 4600 MHz |
| CPU cores | 8 (2 + 6) | 8 (2 + 6) |
| Architecture | - 6 cores at 3.63 GHz: Oryon Gen 3 Performance - 2 cores at 4.74 GHz: Oryon Gen 3 Prime |
- 6 cores at 3.63 GHz: Oryon Gen 3 Performance - 2 cores at 4.74 GHz: Oryon Gen 3 Prime |
| L3 cache | 8 MB | 8 MB |
| Manufacturing | TSMC | TSMC |
| Lithography process | 3 nanometers | 3 nanometers |
| Neural processor (NPU) | Hexagon | Hexagon |
| Graphics | Adreno 840 | Adreno 840 |
| GPU shading units | 1536 | 1536 |
| GPU clock | 1300 MHz | 1300 MHz |
| FLOPS | ~3993.6 GFLOPS | ~3993.6 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
| Compute Score (GPU) | 27357 | 24461 |
| Single-core score | 3784 | 3607 |
| Multi-core score | 11394 | 10732 |
AnTuTu Benchmark 11
| CPU | 1192014 | 1184036 |
| GPU | 1543938 | 1490867 |
| Memory | 525105 | 402813 |
| UX | 986376 | 930578 |
| Total score | 4247433 | 4008294 |
| Samples | [2 tests] | [45 tests] |
3DMark Steel Nomad Light
| Stability | - | 78% |
| Graphics test | - | 20 FPS |
| Graphics score | - | 2699 |
3DMark Solar Bay
| Graphics test | - | 48 FPS |
| Section 1 | - | 56 FPS |
| Section 2 | - | 47 FPS |
| Section 3 | - | 39 FPS |
| Graphics score | - | 12540 |
PCMark 3.0
| Web score | - | 15531 |
| Video editing | - | 6678 |
| Photo editing | - | 26644 |
| Data manipulation | - | 14971 |
| Writing score | - | 20874 |
AnTuTu 11 Ranking List (18th and 27th place)
Recent User Tests
Vivo X300 Ultra
| Date | Benchmark | Result |
|---|---|---|
| 📘 2026-09-25 (mnkotyra12) | AnTuTu 12 | 4156344 |
| 📘 2026-09-12 (InphaseCosine18) | AnTuTu 12 | 4098185 |
| 📘 2026-09-06 (Dipshit6769) | AnTuTu 11 | 3835023 |
| 📘 2026-08-17 (Razor97FF) | Geekbench 6 CPU | 3784 / 11394 |
| 📘 2026-08-17 (Razor97FF) | AnTuTu 11 | 4175239 |
OnePlus 15
| Date | Benchmark | Result |
|---|---|---|
| 📘 2026-09-26 (ASCO🇺🇿) | AnTuTu 12 | 3842868 |
| 📘 2026-09-08 -> aleshka | AnTuTu 12 | 3914618 |
| 📘 2026-09-05 (Mehdi) | AnTuTu 11 | 3651261 |
| 📘 2026-08-24 -> Ang3L4D | AnTuTu 11 | 4057387 |
| 📘 2026-08-15 (YurOk) | AnTuTu 11 | 3870500 |
Memory
| RAM size | 12 GB | 12 GB |
| Memory type | LPDDR5X | LPDDR5X |
| Memory clock | 5300 MHz | 5333 MHz |
| Channels | 4 | 4 |
| Storage size | 256 GB | 256 GB |
| Storage type | UFS 4.1 | UFS 4.1 |
| Memory card | No | No |
Software
| Operating system | Android 16 | Android 16 |
| ROM | OriginOS 6 | OxygenOS 16 |
| OS size | 60 GB | 26 GB |
| OS updates | 5 years | 4 years |
| Security updates | 7 years | 6 years |
Battery
| Capacity | 6600 mAh | 7300 mAh |
| Max charge power | 100 W | 120 W |
| Battery type | Silicon-Carbon (Si/C) | Silicon-Carbon (Si/C) |
| Replaceable | No | No |
| Wireless charging | Yes (40 W) | Yes (50 W) |
| Reverse charging | Yes | Yes, (wireless) |
| Bypass charging | Yes | Yes |
| Fast charging | Yes (66% in 30 min) | Yes (50% in 15 min) |
| Full charging time | 0:46 hr | 0:43 hr |
| Battery cycles | 1200 cycles | 1100 cycles |
| Web browsing | 10:18 hr | 18:32 hr |
| Watching video | 20:51 hr | 28:44 hr |
| Gaming | 06:43 hr | 10:01 hr |
| Standby | 137 hr | 139 hr |
General battery life
Smartphones With Long Battery Life (60th and 5th place)
Main camera
| Matrix | 200 megapixels | 50 megapixels |
| Image resolution | 16320 x 12256 | 8192 x 6144 |
| Zoom | Optical, 3.7x | Optical, 3.5x |
| Flash | Dual LED | Dual LED |
| Stabilization | Optical | Optical |
| 8K video recording | Up to 30FPS | Up to 30FPS |
| 4K video recording | Up to 120FPS | Up to 120FPS |
| 1080p video recording | Up to 120FPS | Up to 120FPS |
| Slow motion | 240 FPS (1080p) | 480 FPS (720p) |
| Angle of widest lens | 116° | 116° |
| Lenses | 1) Standard: 200 MP 2) Telephoto: 200 MP 3) Ultrawide: 50 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 | 200 MP | 50 MP |
| Aperture | f/1.9 | f/1.8 |
| Focal length | 35 mm | 24 mm |
| Sensor | Sony LYT-901 | Sony IMX906 |
| Sensor size | 1/1.12" (≈ 0.89 inch) | 1/1.56" (≈ 0.64 inch) |
| Pixel size | 0.7 micron | 1 micron |
| Autofocus | Laser autofocus | Phase autofocus |
| Stabilization | Optical | Optical |
| Image resolution | 200 MP | 50 MP |
| Aperture | f/2.7 | f/2.8 |
| Focal length | 85 mm | 85 mm |
| Sensor | Samsung ISOCELL HP0 | Samsung S5KJN5 |
| Sensor size | 1/1.4" (≈ 0.71 inch) | 1/2.76" (≈ 0.36 inch) |
| Pixel size | 0.56 micron | 0.64 micron |
| Stabilization | Optical | Optical |
| Image resolution | 50 MP | 50 MP |
| Aperture | f/2.0 | f/2.0 |
| Focal length | 14 mm | 16 mm |
| Sensor | Sony LYT-818 | OmniVision OV50D |
| Sensor size | 1/1.28" (≈ 0.78 inch) | 1/2.88" (≈ 0.35 inch) |
| Pixel size | 1.22 micron | 0.612 micron |
| Stabilization | Optical | Digital |
DxOMark main camera tests
Photo quality
Video quality
Generic main camera score
| Bokeh | 180 | - |
| Zoom | 172 | - |
| Samples | Photo samples of Vivo X300 Ultra from DxOMark | - |
Selfie camera
| Megapixels | 50 megapixels | 32 megapixels |
| Image resolution | 8192 x 6144 | 6560 x 4928 |
| Aperture | f/2.5 | f/2.4 |
| Focal length | 24 mm | 21 mm |
| Sensor | Samsung ISOCELL JN5 | Sony IMX709 |
| Sensor size | 1/2.76" (≈ 0.36 inch) | 1/2.74" (≈ 0.36 inch) |
| Pixel size | 0.64 micron | 0.64 micron |
| Autofocus | Phase autofocus | Phase autofocus |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 60 FPS | 2160p (4K) at 60 FPS |
| Depth sensor (TOF 3D) | No | No |
Connectivity
| Wi-Fi standard | Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) | 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 | 6.0 | 6.0 |
| Bluetooth features | LE | LE |
| USB type | USB Type-C | USB Type-C |
| USB version | 3.2 | 3.2 |
| USB features | - Charging - USB-Storage mode - OTG |
- Charging - USB-Storage mode - OTG |
| DisplayPort | Yes | Yes |
| GPS | GPS, GLONASS, Beidou, Galileo, QZSS | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC |
| NFC* | Yes | Yes |
| Infrared port | Yes | 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 |
| 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 | March 2026 | October 2025 |
| Release date | April 2026 | October 2025 |
| Launch price (MSRP) | $1199 | $899 |
| SAR (head) | 0.99 W/kg | - |
| SAR (body) | 1.29 W/kg | - |
| Sensors | - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Hall-effect sensor - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | Not included | Not included |
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
Conclusion
If the battery life and software are more important to you, then choose the OnePlus 15. But if the sound is more of a priority – go for the Vivo X300 Ultra.
Cast your vote
Total votes: 106
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