realme C63 vs Xiaomi 15 Ultra
28.9Performance79.1
32.7Display69.1
29Camera73.2
52.5Battery79
33.3Features78.7
4 spec wins — realme C6312 spec wins — Xiaomi 15 Ultra
InnoReviews verdict
Xiaomi 15 Ultra wins this phone face-off, 75.9 to 34.8, pulling ahead mainly in performance (+50) and features (+45). realme C63 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the realme C63
- 17% lower thickness: 7.7 mm vs 9.4 mm
- 16% lower weight: 189 g vs 226 g
- Has 3.5mm jack — the other doesn't
Reasons to pick the Xiaomi 15 Ultra
- Stronger performance score: 79 vs 29
- Stronger display score: 69 vs 33
- Stronger camera score: 73 vs 29
- Stronger battery score: 79 vs 53
- Stronger features score: 79 vs 33
Display
| Spec | realme C63 | Xiaomi 15 Ultra |
|---|---|---|
| Screen size | 6.74 ″ | 6.73 ″ |
| Panel type | IPS LCD | LTPO AMOLED |
| Resolution | 720x1600 | 1440x3200 |
| Pixel density | 260 ppi | 522 ppi+101% |
| Refresh rate | 90 Hz | 120 Hz+33% |
| Peak brightness | 560 nits | 3,200 nits+471% |
| Screen-to-body | 85.7 % | 90 %+5% |
Performance
| Spec | realme C63 | Xiaomi 15 Ultra |
|---|---|---|
| Chipset | Unisoc T612 | Snapdragon 8 Elite |
| AnTuTu | — | 2,650,000 |
| Geekbench 6 (single) | — | 3,050Top 13% |
| Geekbench 6 (multi) | — | 9,600Top 11% |
| RAM (max) | 8 GB | 16 GB+100% |
| Storage options | 64/128/256GB | 256/512GB/1TB |
| Storage type | — | UFS 4.1 |
Camera
| Spec | realme C63 | Xiaomi 15 Ultra |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.8 | f/1.63 |
| Ultra-wide | — | 50 MP |
| Telephoto | — | 200 MP |
| Optical zoom | — | 4.3 x |
| Max video | 1080p@30fps | 8K@30fps |
| Front camera | 8 MP | 32 MP+300% |
| OIS | No | Yes |
Battery
| Spec | realme C63 | Xiaomi 15 Ultra |
|---|---|---|
| Capacity | 5,000 mAh | 5,410 mAh+8% |
| Wired charging | 45 W | 90 W+100% |
| Wireless charging | 0 W | 80 W |
| Active use endurance | — | 12 h |
Design
| Spec | realme C63 | Xiaomi 15 Ultra |
|---|---|---|
| Weight | 189 g+16% | 226 g |
| Thickness | 7.7 mm+17% | 9.4 mm |
| IP rating | IP54 | IP68 |
| Frame material | Plastic | Aluminum |
Connectivity
| Spec | realme C63 | Xiaomi 15 Ultra |
|---|---|---|
| 5G | No | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 7 |
| Bluetooth | 5.0 | 6.0 |
| NFC | Yes | Yes |
| USB | USB Type-C 2.0 | USB-C 3.2 |
| eSIM | — | Yes |
Software
| Spec | realme C63 | Xiaomi 15 Ultra |
|---|---|---|
| OS at launch | Android 14 | Android 15 (HyperOS 2) |
| OS update pledge | — | 4 years |
Audio
| Spec | realme C63 | Xiaomi 15 Ultra |
|---|---|---|
| Stereo speakers | No | Yes |
| 3.5mm jack | Yes | No |