Scores
| Total | 88 | 88 |
General
| Brand | iQOO | Vivo |
| Model | iQOO 15 | Vivo X300 |
| Variant | 12GB + 256GB | 12GB + 256GB |
| Device Type | Smartphone | Smartphone |
| Release Date | 26 November 2025 | 17 October 2025 |
| In Box | Phone, 100W Charger, USB-C Cable, SIM Tool, Case | Phone, 90W Charger, USB-C Cable, SIM Tool, Case |
Display
| Size | 6.85 inches | 6.31 inches |
| Type | AMOLED | LTPO AMOLED |
| Resolution | 1440 × 3168 | 1216 × 2640 |
| PPI | 508 | 460 |
| Refresh Rate | 144 Hz | 120 Hz |
| HDR | ✅ Yes | ✅ Yes |
| Brightness | 2600 nits | 4500 nits |
| Screen to Body Ratio | ~ 94.4 % | ~ 90.5 % |
Performance
| Chipset | Snapdragon 8 Elite Gen 5 | Dimensity 9500 |
| CPU Cores | 8 | 8 |
| Cores Details | 4.60 | 4.21 |
| Max Clock Speed | 4.6 GHz | 4.21 GHz |
| GPU | ||
| RAM | 12GB | 12GB |
| RAM Type | LPDDR5X | LPDDR5X |
| Storage | 256 Gb | 256 Gb |
Camera
| Rear Camera | 50 MP (wide, Sony IMX921) + 50 MP (periscope telephoto, Sony IMX882) + 50 MP (ultrawide) | 200 MP (wide) + 50 MP (telephoto) + 50 MP (ultrawide) |
| Rear Video | 4K@60fps, 1080p@240fps | 4K@60fps, 1080p@240fps |
| Flash | ✅ Yes | ✅ Yes |
| OIS | ✅ Yes | ✅ Yes |
| Front Camera | 32 MP (wide) | 50 MP (wide) |
| Front Video | 4K@60fps | 4K@30fps |
Battery & Charging
| Battery Type | Silicon-Anode Battery | Lithium-Polymer (Li-Po) |
| Capacity | 7000 mAh | 6040 mAh |
| Fast Charging | 100 W | 90 W |
| Wireless Charging | 40 W | 40 W |
| Reverse Charging | No | 10 W |
Software
| Operating System | Android | Android |
| OS Version | v16 | v16 |
| Update Policy | 5 | 5 |
| 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 | 7 | 7 |
| Bluetooth | v5.4 | v6 |
| USB | v3.2 | v3.2 |
| NFC | ✅ Yes | ✅ Yes |
| Height | 163.65 mm | 150.57 mm |
| Width | 76.8 mm | 71.92 mm |
| Thickness | 8.17 mm | 7.95 mm |
| Weight | 218 g | 190 g |
| Water Resistance, IP Rating | IP68/IP69 | IP68 & IP69 |
| Colors | Legend, Alpha | Elite Black, Mist Blue, Summit Red |
| 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 | ❌ No |
| Gaming Triggers | ❌ No | ❌ No |
| AI FPS Generation | ✅ Yes | ✅ Yes |