iQOO 15 vs Vivo X300 Ultra
90.8Performance93.3
90.4Display82.3
65.5Camera84.6
90.2Battery91.5
86.7Features84
6 spec wins — iQOO 158 spec wins — Vivo X300 Ultra
InnoReviews verdict
Vivo X300 Ultra wins this phone face-off, 88.1 to 85.1, pulling ahead mainly in camera (+19) and performance (+3). iQOO 15 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
- Stronger display score: 90 vs 82
- 40% higher OS update pledge: 7 years vs 5 years
- 33% higher Peak brightness: 6,000 nits vs 4,500 nits
Reasons to pick the Vivo X300 Ultra
- Stronger camera score: 85 vs 66
- 300% higher Main camera: 200 MP vs 50 MP
- 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
Display
| Spec | iQOO 15 | Vivo X300 Ultra |
|---|---|---|
| Screen size | 6.85 ″ | 6.82 ″ |
| Panel type | LTPO AMOLED | LTPO AMOLED |
| Resolution | 3168x1440 | 1440x3168 |
| Pixel density | 508 ppi | 510 ppi |
| Refresh rate | 144 Hz | 144 Hz |
| Peak brightness | 6,000 nits+33% | 4,500 nits |
| Screen-to-body | — | 90.3 % |
Performance
| Spec | iQOO 15 | Vivo X300 Ultra |
|---|---|---|
| Chipset | Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite Gen 5 |
| AnTuTuDifferent AnTuTu versions — not compared | 3,758,268Top 3% | 4,085,695 |
| AnTuTu 11 (CPU) | 1,061,124Top 7% | — |
| AnTuTu 11 (GPU) | 1,415,886Top 5% | — |
| AnTuTu 11 (Memory) | 418,830Top 18% | — |
| AnTuTu 11 (UX) | 862,428Top 3% | — |
| Geekbench 6 (single) | 3,613Top 8% | 3,730+3%Top 5% |
| Geekbench 6 (multi) | 11,178Top 5% | 11,494+3%Top 5% |
| Wild Life Extreme stability | 66 %Top 44% | — |
| RAM (max) | 16 GB | 16 GB |
| Storage options | 256GB / 512GB | 256/512GB/1TB |
| Storage type | UFS 4.1 | UFS 4.1 |
Camera
| Spec | iQOO 15 | Vivo X300 Ultra |
|---|---|---|
| Main camera | 50 MP | 200 MP+300% |
| Main aperture | f/1.88 | f/1.9 |
| Ultra-wide | 50 MP | 50 MP |
| Telephoto | 50 MP | 200 MP+300% |
| Optical zoom | 3 x | 3.7 x+23% |
| Max video | — | 8K@30fps |
| Front camera | 32 MP | 50 MP+56% |
| OIS | Yes | Yes |
Battery
| Spec | iQOO 15 | Vivo X300 Ultra |
|---|---|---|
| Capacity | 7,000 mAh+6% | 6,600 mAh |
| Wired charging | 100 W | 100 W |
| Wireless charging | 40 W | 40 W |
| Active use endurance | — | 16 h |
Design
| Spec | iQOO 15 | Vivo X300 Ultra |
|---|---|---|
| Weight | 220 g+5% | 232 g |
| Thickness | 8.2 mm | 8.2 mm |
| IP rating | IP68/IP69 | IP68/IP69 |
| Frame material | Matte metal | Aluminum |
Connectivity
| Spec | iQOO 15 | Vivo X300 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 6.0 | 5.4 |
| NFC | Yes | Yes |
| USB | USB-C | USB-C 3.2 |
| eSIM | No | Yes |
Software
| Spec | iQOO 15 | Vivo X300 Ultra |
|---|---|---|
| OS at launch | Android 16 (OriginOS 6) | Android 16 (OriginOS 6) |
| OS update pledge | 7 years+40% | 5 years |
Audio
| Spec | iQOO 15 | Vivo X300 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |