Vivo X300 Ultra vs Xiaomi 15
93.3Performance76.7
82.3Display64.5
84.6Camera64.7
91.5Battery83.5
84Features78.7
14 spec wins — Vivo X300 Ultra4 spec wins — Xiaomi 15
InnoReviews verdict
Vivo X300 Ultra wins this phone face-off, 88.1 to 73.4, pulling ahead mainly in camera (+20) and display (+18). Xiaomi 15 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 77
- Stronger display score: 82 vs 65
- Stronger camera score: 85 vs 65
- Stronger battery score: 92 vs 84
- Stronger features score: 84 vs 79
Reasons to pick the Xiaomi 15
- 25% higher Wireless charging: 50 W vs 40 W
- 18% lower weight: 191 g vs 232 g
Display
| Spec | Vivo X300 Ultra | Xiaomi 15 |
|---|---|---|
| Screen size | 6.82 ″+7% | 6.36 ″ |
| Panel type | LTPO AMOLED | LTPO AMOLED |
| Resolution | 1440x3168 | 1200x2670 |
| Pixel density | 510 ppi+11% | 460 ppi |
| Refresh rate | 144 Hz+20% | 120 Hz |
| Peak brightness | 4,500 nits+41% | 3,200 nits |
| Screen-to-body | 90.3 % | — |
Performance
| Spec | Vivo X300 Ultra | Xiaomi 15 |
|---|---|---|
| Chipset | Qualcomm Snapdragon 8 Elite Gen 5 | Snapdragon 8 Elite |
| AnTuTuDifferent AnTuTu versions — not compared | 4,085,695 | 2,914,100Top 17% |
| AnTuTu 11 (CPU) | — | 874,340Top 14% |
| AnTuTu 11 (GPU) | — | 1,069,991Top 17% |
| AnTuTu 11 (Memory) | — | 379,667Top 20% |
| AnTuTu 11 (UX) | — | 590,102Top 20% |
| Geekbench 6 (single) | 3,730+26%Top 3% | 2,972Top 15% |
| Geekbench 6 (multi) | 11,494+23%Top 3% | 9,330Top 12% |
| Wild Life Extreme stability | — | 89 %Top 50% |
| RAM (max) | 16 GB+33% | 12 GB |
| Storage options | 256/512GB/1TB | 256/512GB |
| Storage type | UFS 4.1 | UFS 4.0 |
Camera
| Spec | Vivo X300 Ultra | Xiaomi 15 |
|---|---|---|
| Main camera | 200 MP+300% | 50 MP |
| Main aperture | f/1.9 | f/1.62 |
| Ultra-wide | 50 MP | 50 MP |
| Telephoto | 200 MP+300% | 50 MP |
| Optical zoom | 3.7 x+42% | 2.6 x |
| Max video | 8K@30fps | 8K@30fps |
| Front camera | 50 MP+56% | 32 MP |
| OIS | Yes | Yes |
Battery
| Spec | Vivo X300 Ultra | Xiaomi 15 |
|---|---|---|
| Capacity | 6,600 mAh+26% | 5,240 mAh |
| Wired charging | 100 W+11% | 90 W |
| Wireless charging | 40 W | 50 W+25% |
| Active use endurance | 16 h | 16.5 h+3% |
Design
| Spec | Vivo X300 Ultra | Xiaomi 15 |
|---|---|---|
| Weight | 232 g | 191 g+18% |
| Thickness | 8.2 mm | 8.1 mm+1% |
| IP rating | IP68/IP69 | IP68 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | Vivo X300 Ultra | Xiaomi 15 |
|---|---|---|
| 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 |
|---|---|---|
| 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 |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |