Oppo K13x vs Vivo Y31 Pro
The Oppo K13x (2025) runs on the MediaTek Dimensity 6300, while the Vivo Y31 Pro (2025) runs on the MediaTek Dimensity 7300; launch prices were $165 and $195. By overall MobileRank rating, the Vivo Y31 Pro leads — 50/100 vs 44/100 (a 6-point difference). Key differences: the Vivo Y31 Pro has the bigger battery (6500 mAh vs 6000); the Vivo Y31 Pro is faster in AnTuTu (879,714 vs 528,398); the Oppo K13x has NFC for contactless payments, the Vivo Y31 Pro doesn't.
Profile comparison
Category scores
Oppo K13x
Vivo Y31 Pro
What makes Oppo K13x better?
- Faster charging: 45W vs 44W
- Lighter: 194g vs 204g
- Cheaper at launch: $165 vs $195
- Better portability (63/100 vs 56/100)
What makes Vivo Y31 Pro better?
- Higher AnTuTu: 879714 vs 528398
- Better Geekbench Single: 1011 vs 771
- Better Geekbench Multi: 2813 vs 1980
- Bigger battery: 6500 vs 6000 mAh
- Higher performance (55/100 vs 43/100)
- Longer battery life (58/100 vs 56/100)
- Better display (66/100 vs 55/100)
Comparison verdict
Comparing the Oppo K13x vs the Vivo Y31 Pro, the Vivo Y31 Pro scores 6 points higher (50/100 vs 44/100). In the "performance" category, the Vivo Y31 Pro leads (55/100 vs 43/100). Value score: Oppo K13x — 58/100, Vivo Y31 Pro — 62/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Vivo Y31 Pro is a bit better (55/100 vs 43/100). In the "display" category, the Vivo Y31 Pro is a bit better (66/100 vs 55/100). In the "camera" category, both devices are on the same level — 30/100. In the "battery" category, the Vivo Y31 Pro and the Oppo K13x are nearly equal (58/100 vs 56/100). In the "portability" category, the Oppo K13x is a bit better (63/100 vs 56/100).
Specs comparison
| Specification | Oppo K13x | Vivo Y31 Pro | |
|---|---|---|---|
| Processor | MediaTek Dimensity 6300 | MediaTek Dimensity 7300 | |
| AnTuTu | 528398 | 879714 | |
| Geekbench Single | 771 | 1011 | |
| Geekbench Multi | 1980 | 2813 | |
| Display | 6.7" IPS LCD | 6.7" IPS LCD | |
| Resolution | 720x1604 | 1080x2408 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6000 mAh | 6500 mAh | |
| Charging | 45W | 44W | |
| Main camera | 50 MP | 50 MP | |
| Front camera | 8 MP | 8 MP | |
| RAM | 4GB / 6GB / 8GB | 8GB | |
| Storage | 128GB / 256GB | 128GB / 256GB | |
| OS | Android 15, ColorOS 15 | Android 15, Funtouch 15 | |
| Brightness (peak) | 1000 nits | 1050 nits | |
| NFC | yes | no | |
| Protection | IP65 | IP64 | |
| Dimensions | 165.7×76.2×7.9 mm | 165.7×76.3×8.1 mm | |
| Weight | 194 g | 204 g | |
| Launch price | $165 | $195 |
Camera comparison
Oppo K13x
- Main: 50MP f/1.8
- Front: 8MP
Vivo Y31 Pro
- Main: 50MP f/1.8
- Front: 8MP
Display comparison
Oppo K13x
- 6.7" IPS LCD
- Resolution: 720x1604
- Refresh rate: 120 Hz
Vivo Y31 Pro
- 6.7" IPS LCD
- Resolution: 1080x2408
- Refresh rate: 120 Hz
Battery and charging
Oppo K13x
- 6000 mAh
- Wired: 45W
- No wireless charging
Vivo Y31 Pro
- 6500 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Oppo K13x and Vivo Y31 Pro, covering their specs and all relevant benchmarks.
Vivo Y31 Pro leads Oppo K13x by 39.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $30. Oppo K13x was $30 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo Y31 Pro is a bit better (55/100 vs 43/100).
display
In the "display" category, the Vivo Y31 Pro is a bit better (66/100 vs 55/100).
camera
In the "camera" category, both devices are on the same level — 30/100.
battery
In the "battery" category, the Vivo Y31 Pro and the Oppo K13x are nearly equal (58/100 vs 56/100).
portability
In the "portability" category, the Oppo K13x is a bit better (63/100 vs 56/100).
Frequently asked questions
Which is better: the Oppo K13x or the Vivo Y31 Pro?
The Vivo Y31 Pro edges out the Oppo K13x by just 6 points — the two devices are very close in overall level.
What is the rating of the Oppo K13x and the Vivo Y31 Pro?
The Oppo K13x has a MobileRank rating of 44/100, the Vivo Y31 Pro — 50/100.
Which is more powerful: the Oppo K13x or the Vivo Y31 Pro?
The Vivo Y31 Pro leads on performance (55/100 vs 43/100).
Should you choose the Oppo K13x over the Vivo Y31 Pro?
Neither model stands out enough to recommend it for a specific use case: the clearest difference is performance — better on the Vivo Y31 Pro (55/100 vs 43/100).