Vivo X300 Ultra vs Xiaomi 15 Ultra
93.3Performance79.1
82.3Display69.1
84.6Camera73.2
91.5Battery79
84Features78.7
14 spec wins — Vivo X300 Ultra4 spec wins — Xiaomi 15 Ultra
InnoReviews verdict
Vivo X300 Ultra wins this phone face-off, 88.1 to 75.9, pulling ahead mainly in performance (+14) and display (+13). Xiaomi 15 Ultra still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Vivo X300 Ultra
- Stronger performance score: 93 vs 79
- Stronger display score: 82 vs 69
- Stronger camera score: 85 vs 73
- Stronger battery score: 92 vs 79
- Stronger features score: 84 vs 79
Reasons to pick the Xiaomi 15 Ultra
- 100% higher Wireless charging: 80 W vs 40 W
- 16% higher Optical zoom: 4.3 x vs 3.7 x
Display
| Spec | Vivo X300 Ultra | Xiaomi 15 Ultra |
|---|---|---|
| Screen size | 6.82 ″+1% | 6.73 ″ |
| Panel type | LTPO AMOLED | LTPO AMOLED |
| Resolution | 1440x3168 | 1440x3200 |
| Pixel density | 510 ppi | 522 ppi+2% |
| Refresh rate | 144 Hz+20% | 120 Hz |
| Peak brightness | 4,500 nits+41% | 3,200 nits |
| Screen-to-body | 90.3 % | 90 % |
Performance
| Spec | Vivo X300 Ultra | Xiaomi 15 Ultra |
|---|---|---|
| Chipset | Qualcomm Snapdragon 8 Elite Gen 5 | Snapdragon 8 Elite |
| AnTuTu | 4,085,695+54% | 2,650,000 |
| Geekbench 6 (single) | 3,730+22%Top 3% | 3,050Top 12% |
| Geekbench 6 (multi) | 11,494+20%Top 3% | 9,600Top 11% |
| RAM (max) | 16 GB | 16 GB |
| Storage options | 256/512GB/1TB | 256/512GB/1TB |
| Storage type | UFS 4.1 | UFS 4.1 |
Camera
| Spec | Vivo X300 Ultra | Xiaomi 15 Ultra |
|---|---|---|
| Main camera | 200 MP+300% | 50 MP |
| Main aperture | f/1.9 | f/1.63 |
| Ultra-wide | 50 MP | 50 MP |
| Telephoto | 200 MP | 200 MP |
| Optical zoom | 3.7 x | 4.3 x+16% |
| Max video | 8K@30fps | 8K@30fps |
| Front camera | 50 MP+56% | 32 MP |
| OIS | Yes | Yes |
Battery
| Spec | Vivo X300 Ultra | Xiaomi 15 Ultra |
|---|---|---|
| Capacity | 6,600 mAh+22% | 5,410 mAh |
| Wired charging | 100 W+11% | 90 W |
| Wireless charging | 40 W | 80 W+100% |
| Active use endurance | 16 h+33% | 12 h |
Design
| Spec | Vivo X300 Ultra | Xiaomi 15 Ultra |
|---|---|---|
| Weight | 232 g | 226 g+3% |
| Thickness | 8.2 mm+12% | 9.4 mm |
| IP rating | IP68/IP69 | IP68 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | Vivo X300 Ultra | Xiaomi 15 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 5.4 | 6.0 |
| NFC | Yes | Yes |
| USB | USB-C 3.2 | USB-C 3.2 |
| eSIM | Yes | Yes |
Software
| Spec | Vivo X300 Ultra | Xiaomi 15 Ultra |
|---|---|---|
| OS at launch | Android 16 (OriginOS 6) | Android 15 (HyperOS 2) |
| OS update pledge | 5 years+25% | 4 years |
Audio
| Spec | Vivo X300 Ultra | Xiaomi 15 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |