itel S25 Ultra vs OPPO K13x 5G
28.9Performance21.8
55.9Display45.2
34.1Camera29
38.8Battery61.9
28Features36
7 spec wins — itel S25 Ultra4 spec wins — OPPO K13x 5G
InnoReviews verdict
This one is close to a dead heat: itel S25 Ultra scores 37.2 against 37.3 for OPPO K13x 5G. Pick by the categories that matter to you — OPPO K13x 5G edges ahead in battery and features, or by price.
Which would you pick?
Key differences
Reasons to pick the itel S25 Ultra
- Stronger performance score: 29 vs 22
- Stronger display score: 56 vs 45
- Stronger camera score: 34 vs 29
- 300% higher Front camera: 32 MP vs 8 MP
- 49% higher Pixel density: 393 ppi vs 264 ppi
Reasons to pick the OPPO K13x 5G
- Stronger battery score: 62 vs 39
- Stronger features score: 36 vs 28
- 150% higher Wired charging: 45 W vs 18 W
- 20% higher capacity: 6,000 mAh vs 5,000 mAh
- Has 5G — the other doesn't
Display
| Spec | itel S25 Ultra | OPPO K13x 5G |
|---|---|---|
| Screen size | 6.78 ″+2% | 6.67 ″ |
| Panel type | AMOLED | IPS LCD |
| Resolution | 1080x2436 | 1604x720 |
| Pixel density | 393 ppi+49% | 264 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,400 nits+40% | 1,000 nits |
| Screen-to-body | 94 %+5% | 89.9 % |
Performance
| Spec | itel S25 Ultra | OPPO K13x 5G |
|---|---|---|
| Chipset | Unisoc T620 | MediaTek Dimensity 6300 |
| Geekbench 6 (single) | — | 785Bottom 19% |
| Geekbench 6 (multi) | — | 1,984Bottom 16% |
| RAM (max) | 8 GB | 8 GB |
| Storage options | 128GB/256GB/512GB | 128GB |
| Storage type | UFS 2.2 | UFS 2.2 |
Camera
| Spec | itel S25 Ultra | OPPO K13x 5G |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.6 | f/1.8 |
| Max video | 1440p@30fps | 1080p@60fps |
| Front camera | 32 MP+300% | 8 MP |
| OIS | No | No |
Battery
| Spec | itel S25 Ultra | OPPO K13x 5G |
|---|---|---|
| Capacity | 5,000 mAh | 6,000 mAh+20% |
| Wired charging | 18 W | 45 W+150% |
| Wireless charging | 0 W | — |
Design
| Spec | itel S25 Ultra | OPPO K13x 5G |
|---|---|---|
| Weight | 163 g+16% | 194 g |
| Thickness | 6.9 mm+13% | 7.9 mm |
| IP rating | IP64 | IP65 |
| Frame material | — | Plastic |
Connectivity
| Spec | itel S25 Ultra | OPPO K13x 5G |
|---|---|---|
| 5G | No | Yes |
| Wi-Fi | — | Wi-Fi 5 |
| Bluetooth | — | 5.4 |
| NFC | Yes | — |
| USB | USB-C 2.0 | USB-C |
Software
| Spec | itel S25 Ultra | OPPO K13x 5G |
|---|---|---|
| OS at launch | Android 14 (itel OS 14.5) | Android 15 (ColorOS 15) |
| OS update pledge | 2 years | 2 years |
Audio
| Spec | itel S25 Ultra | OPPO K13x 5G |
|---|---|---|
| 3.5mm jack | No | Yes |