iQOO 15 Ultra vs Vivo X300 Pro
99.6Performance86.2
90.4Display74.3
65.5Camera75.8
90.2Battery83.3
86.7Features84
12 spec wins — iQOO 15 Ultra6 spec wins — Vivo X300 Pro
InnoReviews verdict
iQOO 15 Ultra wins this phone face-off, 87.8 to 81, pulling ahead mainly in display (+16) and performance (+13). Vivo X300 Pro still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the iQOO 15 Ultra
- Stronger performance score: 100 vs 86
- Stronger display score: 90 vs 74
- Stronger battery score: 90 vs 83
- 78% higher Peak brightness: 8,000 nits vs 4,500 nits
- 63% higher AnTuTu 11 (Memory): 547,676 vs 335,239
Reasons to pick the Vivo X300 Pro
- Stronger camera score: 76 vs 66
- 300% higher telephoto: 200 MP vs 50 MP
- 56% higher Front camera: 50 MP vs 32 MP
- 23% higher Optical zoom: 3.7 x vs 3 x
- Has eSIM — the other doesn't
Display
| Spec | iQOO 15 Ultra | Vivo X300 Pro |
|---|---|---|
| Screen size | 6.85 ″+1% | 6.78 ″ |
| Panel type | AMOLED | LTPO AMOLED |
| Resolution | 1440x3168 | 1260x2800 |
| Pixel density | 508 ppi+12% | 452 ppi |
| Refresh rate | 144 Hz+20% | 120 Hz |
| Peak brightness | 8,000 nits+78% | 4,500 nits |
| Screen-to-body | — | 91.6 % |
Performance
| Spec | iQOO 15 Ultra | Vivo X300 Pro |
|---|---|---|
| Chipset | Snapdragon 8 Elite Gen 5 | MediaTek Dimensity 9500 |
| AnTuTu 11 | 4,118,578+24%Top 1% | 3,326,259Top 11% |
| AnTuTu 11 (CPU) | 1,124,295+14%Top 2% | 988,622Top 10% |
| AnTuTu 11 (GPU) | 1,528,317+18%Top 1% | 1,298,581Top 11% |
| AnTuTu 11 (Memory) | 547,676+63%Top 1% | 335,239Top 39% |
| AnTuTu 11 (UX) | 918,290+30%Top 1% | 703,817Top 14% |
| Geekbench 6 (single) | — | 3,473Top 6% |
| Geekbench 6 (multi) | — | 10,264Top 6% |
| Wild Life Extreme stability | — | 59 %Bottom 21% |
| RAM (max) | 24 GB+50% | 16 GB |
| Storage options | 256GB/512GB/1TB | 256/512GB/1TB |
| Storage type | UFS 4.1 | UFS 4.1 |
Camera
| Spec | iQOO 15 Ultra | Vivo X300 Pro |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.88 | f/1.57 |
| Ultra-wide | 50 MP | 50 MP |
| Telephoto | 50 MP | 200 MP+300% |
| Optical zoom | 3 x | 3.7 x+23% |
| Max video | 8K@30fps | 8K@30fps |
| Front camera | 32 MP | 50 MP+56% |
| OIS | Yes | Yes |
Battery
| Spec | iQOO 15 Ultra | Vivo X300 Pro |
|---|---|---|
| Capacity | 7,400 mAh+14% | 6,510 mAh |
| Wired charging | 100 W+11% | 90 W |
| Wireless charging | 40 W | 40 W |
| Active use endurance | — | 12.8 h |
Design
| Spec | iQOO 15 Ultra | Vivo X300 Pro |
|---|---|---|
| Weight | 227 g | 226 g |
| Thickness | 8.7 mm | 8 mm+8% |
| IP rating | IP68/IP69 | IP68/IP69 |
| Frame material | — | Aluminum |
Connectivity
| Spec | iQOO 15 Ultra | Vivo X300 Pro |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 6.0 | 5.4 |
| NFC | Yes | Yes |
| USB | USB-C 3.2 Gen 1 | USB-C 3.2 |
| eSIM | No | Yes |
Software
| Spec | iQOO 15 Ultra | Vivo X300 Pro |
|---|---|---|
| OS at launch | Android 16 (OriginOS 6) | Android 16 (OriginOS 6) |
| OS update pledge | — | 5 years |
Audio
| Spec | iQOO 15 Ultra | Vivo X300 Pro |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |