OPPO K13x 5G vs Xiaomi 15 Ultra
21.8Performance79.1
45.2Display69.1
29Camera73.2
61.9Battery79
36Features78.7
4 spec wins — OPPO K13x 5G11 spec wins — Xiaomi 15 Ultra
InnoReviews verdict
Xiaomi 15 Ultra wins this phone face-off, 75.9 to 37.3, pulling ahead mainly in performance (+57) and camera (+44). OPPO K13x 5G still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the OPPO K13x 5G
- 16% lower thickness: 7.9 mm vs 9.4 mm
- 14% lower weight: 194 g vs 226 g
- 11% higher capacity: 6,000 mAh vs 5,410 mAh
- Has 3.5mm jack — the other doesn't
Reasons to pick the Xiaomi 15 Ultra
- Stronger performance score: 79 vs 22
- Stronger display score: 69 vs 45
- Stronger camera score: 73 vs 29
- Stronger battery score: 79 vs 62
- Stronger features score: 79 vs 36
Display
| Spec | OPPO K13x 5G | Xiaomi 15 Ultra |
|---|---|---|
| Screen size | 6.67 ″ | 6.73 ″+1% |
| Panel type | IPS LCD | LTPO AMOLED |
| Resolution | 1604x720 | 1440x3200 |
| Pixel density | 264 ppi | 522 ppi+98% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,000 nits | 3,200 nits+220% |
| Screen-to-body | 89.9 % | 90 % |
Performance
| Spec | OPPO K13x 5G | Xiaomi 15 Ultra |
|---|---|---|
| Chipset | MediaTek Dimensity 6300 | Snapdragon 8 Elite |
| AnTuTu | — | 2,650,000 |
| Geekbench 6 (single) | 785Bottom 19% | 3,050+289%Top 12% |
| Geekbench 6 (multi) | 1,984Bottom 16% | 9,600+384%Top 11% |
| RAM (max) | 8 GB | 16 GB+100% |
| Storage options | 128GB | 256/512GB/1TB |
| Storage type | UFS 2.2 | UFS 4.1 |
Camera
| Spec | OPPO K13x 5G | 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@60fps | 8K@30fps |
| Front camera | 8 MP | 32 MP+300% |
| OIS | No | Yes |
Battery
| Spec | OPPO K13x 5G | Xiaomi 15 Ultra |
|---|---|---|
| Capacity | 6,000 mAh+11% | 5,410 mAh |
| Wired charging | 45 W | 90 W+100% |
| Wireless charging | — | 80 W |
| Active use endurance | — | 12 h |
Design
| Spec | OPPO K13x 5G | Xiaomi 15 Ultra |
|---|---|---|
| Weight | 194 g+14% | 226 g |
| Thickness | 7.9 mm+16% | 9.4 mm |
| IP rating | IP65 | IP68 |
| Frame material | Plastic | Aluminum |
Connectivity
| Spec | OPPO K13x 5G | Xiaomi 15 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 7 |
| Bluetooth | 5.4 | 6.0 |
| NFC | — | Yes |
| USB | USB-C | USB-C 3.2 |
| eSIM | — | Yes |
Software
| Spec | OPPO K13x 5G | Xiaomi 15 Ultra |
|---|---|---|
| OS at launch | Android 15 (ColorOS 15) | Android 15 (HyperOS 2) |
| OS update pledge | 2 years | 4 years+100% |
Audio
| Spec | OPPO K13x 5G | Xiaomi 15 Ultra |
|---|---|---|
| Stereo speakers | — | Yes |
| 3.5mm jack | Yes | No |