realme 15 5G vs Vivo X300 Ultra
46.7Performance93.3
88.3Display82.3
49.8Camera84.6
79.8Battery91.5
73.3Features84
5 spec wins — realme 15 5G6 spec wins — Vivo X300 Ultra
InnoReviews verdict
Vivo X300 Ultra wins this phone face-off, 88.1 to 64.9, pulling ahead mainly in performance (+47) and camera (+35). realme 15 5G still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the realme 15 5G
- Stronger display score: 88 vs 82
- 44% higher Peak brightness: 6,500 nits vs 4,500 nits
- 19% lower weight: 187 g vs 232 g
Reasons to pick the Vivo X300 Ultra
- Stronger performance score: 93 vs 47
- Stronger camera score: 85 vs 50
- Stronger battery score: 92 vs 80
- Stronger features score: 84 vs 73
- 525% higher ultra-wide: 50 MP vs 8 MP
Display
| Spec | realme 15 5G | Vivo X300 Ultra |
|---|---|---|
| Screen size | 6.8 ″ | 6.82 ″ |
| Panel type | AMOLED | LTPO AMOLED |
| Resolution | 1280x2800 | 1440x3168 |
| Pixel density | 453 ppi | 510 ppi+13% |
| Refresh rate | 144 Hz | 144 Hz |
| Peak brightness | 6,500 nits+44% | 4,500 nits |
| Screen-to-body | 94 %+4% | 90.3 % |
Performance
| Spec | realme 15 5G | Vivo X300 Ultra |
|---|---|---|
| Chipset | MediaTek Dimensity 7300+ | Qualcomm Snapdragon 8 Elite Gen 5 |
| AnTuTu | — | 4,085,695 |
| Geekbench 6 (single) | — | 3,730Top 3% |
| Geekbench 6 (multi) | — | 11,494Top 3% |
| RAM (max) | 12 GB | 16 GB+33% |
| Storage options | 128/256GB | 256/512GB/1TB |
| Storage type | UFS 3.1 | UFS 4.1 |
Camera
| Spec | realme 15 5G | Vivo X300 Ultra |
|---|---|---|
| Main camera | 50 MP | 200 MP+300% |
| Main aperture | f/1.8 | f/1.9 |
| Ultra-wide | 8 MP | 50 MP+525% |
| Telephoto | — | 200 MP |
| Optical zoom | — | 3.7 x |
| Max video | 4K@30fps | 8K@30fps |
| Front camera | 50 MP | 50 MP |
| OIS | Yes | Yes |
Battery
| Spec | realme 15 5G | Vivo X300 Ultra |
|---|---|---|
| Capacity | 7,000 mAh+6% | 6,600 mAh |
| Wired charging | 80 W | 100 W+25% |
| Wireless charging | — | 40 W |
| Active use endurance | — | 16 h |
Design
| Spec | realme 15 5G | Vivo X300 Ultra |
|---|---|---|
| Weight | 187 g+19% | 232 g |
| Thickness | 7.7 mm+6% | 8.2 mm |
| IP rating | IP68/IP69 | IP68/IP69 |
| Frame material | — | Aluminum |
Connectivity
| Spec | realme 15 5G | Vivo X300 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 5/6 | Wi-Fi 7 |
| Bluetooth | 5.4 | 5.4 |
| NFC | — | Yes |
| USB | USB Type-C | USB-C 3.2 |
| eSIM | — | Yes |
Software
| Spec | realme 15 5G | Vivo X300 Ultra |
|---|---|---|
| OS at launch | Android 15 (realme UI 6.0) | Android 16 (OriginOS 6) |
| OS update pledge | — | 5 years |
Audio
| Spec | realme 15 5G | Vivo X300 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |