Scores
| Total | 89 | 86 |
General
| Brand | Xiaomi | Vivo |
| Model | Xiaomi 15 Ultra | Vivo X300 Pro |
| Variant | ||
| Device Type | Smartphone | Smartphone |
| Release Date | 10 March 2025 | 1 December 2025 |
| In Box | Mobile Phone, Adapter, USB Type-C Cable, SIM Eject Tool, Protective Case, Safety Information, Quick Start Guide and Warranty Card, Desiccant | Phone, 90W Charger, USB‑C Cable, SIM Tool, Case |
Display
| Size | 6.73 inches | 6.78 inches |
| Type | LTPO AMOLED | AMOLED |
| Resolution | 1440 × 3200 | 1260 × 2800 |
| PPI | 522 | 452 |
| Refresh Rate | 120 Hz | 120 Hz |
| HDR | ✅ Yes | ✅ Yes |
| Brightness | 3200 nits | 4500 nits |
| Screen to Body Ratio | ~ 90.03 % | ~ 90.78 % |
Performance
| Chipset | Snapdragon 8 Elite | Dimensity 9500 |
| CPU Cores | 8 | 8 |
| Cores Details | Octa core (4.32 GHz, Dual core, Oryon + 3.53 GHz, Hexa Core, Oryon) | 4.21 |
| Max Clock Speed | 4.32 GHz | 4.21 GHz |
| GPU | Adreno 830 | |
| RAM | 16GB | 16GB |
| RAM Type | LPDDR5X | LPDDR5X |
| Storage | 512 Gb |
Camera
| Rear Camera | 50 MP (wide) + 50 MP (ultrawide) + 200 MP (periscope telephoto) + 50 MP (telephoto) | 50 MP (wide, OIS) + 50 MP (ultrawide) + 200 MP (telephoto, OIS) |
| Rear Video | 8K@30fps, 4K@60fps, Full HD @1920fps, HD @1920fps | 8K@30fps, 4K@30/60/120fps, 1080p@120/240fps |
| Flash | ✅ Yes | ✅ Yes |
| OIS | ✅ Yes | ✅ Yes |
| Front Camera | 32 MP (wide) | 50 MP (wide) |
| Front Video | 4K@60fps, Full HD @60fps, HD @30fps | 4K@30/60fps |
Battery & Charging
| Battery Type | Silicon-Carbon Battery | Lithium-Polymer (Li-Po) |
| Capacity | 5410 mAh | 6510 mAh |
| Fast Charging | 90 W | 90 W |
| Wireless Charging | 80 W | 40 W |
| Reverse Charging | 10 W | 10 W |
Software
| Operating System | Android | Android |
| OS Version | v15 | v16 |
| Update Policy | 4 Years OS Updates, 6 Years Security Updates | 4 |
| 5G | ✅ Yes | ✅ Yes |
| 4G | ✅ Yes | ✅ Yes |
| 3G | ✅ Yes | ✅ Yes |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano‑SIM, dual stand‑by) |
| Wi-Fi | Wi-Fi 7 (802.11 a/b/g/n/ac/be/ax) 5GHz 6GHz, MIMO | 7 |
| Bluetooth | v6 | v5.4 |
| USB | v3.2 | v3.2 |
| NFC | ✅ Yes |
| Height | 161.3 mm | 161.98 mm |
| Width | 75.3 mm | 75.48 mm |
| Thickness | 9.48 mm | 7.99 mm |
| Weight | 229 g | 226 g |
| Water Resistance, IP Rating | IP68, Water Resistance 1.5 m upto 30 min | IP68 & IP69 |
| Colors | Silver Chrome, Black | Dune Gold, Elite Black |
| Fingerprint | Under-display Ultrasonic | Under-display Ultrasonic |
| Face Unlock | ✅ Yes | ✅ Yes |
| Speakers | 2 | 2 |
| Stereo Speakers | ✅ Yes | ✅ Yes |
| Headphone Jack | ❌ No | ❌ No |
| Dedicated Cooling | ✅ Yes | ✅ Yes |
| Gaming Triggers | ❌ No | ❌ No |
| AI FPS Generation | ✅ Yes | ❌ No |