Oppo K12x (China) vs Vivo iQOO 15
The Oppo K12x (China) (2024) runs on the Qualcomm Snapdragon 695 5G, while the Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 51/100 (a 35-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 5500); the Vivo iQOO 15 is faster in AnTuTu (3,740,528 vs 592,015); the Vivo iQOO 15 has NFC for contactless payments, the Oppo K12x (China) doesn't; the Oppo K12x (China) is noticeably lighter (191g vs 215g).
Oppo K12x (China)
Vivo iQOO 15
- Lighter: 191g vs 215g
- Better portability (63/100 vs 48/100)
- Higher AnTuTu: 3740528 vs 592015
- Better Geekbench Single: 3041 vs 905
- Better Geekbench Multi: 9494 vs 2003
- Bigger battery: 7000 vs 5500 mAh
- Faster charging: 100W vs 80W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (94/100 vs 46/100)
- Better camera (78/100 vs 32/100)
- Longer battery life (85/100 vs 62/100)
- Better display (99/100 vs 79/100)
Comparing the Oppo K12x (China) vs the Vivo iQOO 15, the Vivo iQOO 15 scores 35 points higher (86/100 vs 51/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 46/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 32/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 62/100). In the "performance" category, the Vivo iQOO 15 significantly outperforms the Oppo K12x (China) (94/100 vs 46/100). In the "display" category, the Vivo iQOO 15 notably outperforms the Oppo K12x (China) (99/100 vs 79/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Oppo K12x (China) (78/100 vs 32/100). In the "battery" category, the Vivo iQOO 15 notably outperforms the Oppo K12x (China) (85/100 vs 62/100). In the "portability" category, the Oppo K12x (China) notably outperforms the Vivo iQOO 15 (63/100 vs 48/100).
| Specification | Oppo K12x (China) | Vivo iQOO 15 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 695 5G | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 592015 | 3740528 | |
| Geekbench Single | 905 | 3041 | |
| Geekbench Multi | 2003 | 9494 | |
| Display | 6.7" OLED | 6.8" LTPO AMOLED | |
| Resolution | 1080x2400 | 1440x3168 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 5500 mAh | 7000 mAh | |
| Charging | 80W | 100W | |
| Wireless charging | 0W | 40W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 16 MP | 32 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 14, ColorOS 14 | Android 16 | |
| Brightness (peak) | 2100 nits | 6000 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 162.9×75.6×8.1 mm | 163.7×76.8×8.1 mm | |
| Weight | 191 g | 215 g | |
| Launch price | — | $599 |
Oppo K12x (China)
- Main: 50MP f/f/1.8
- Front: 16MP
Vivo iQOO 15
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Oppo K12x (China)
- 6.7" OLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Oppo K12x (China)
- 5500 mAh
- Wired: 80W
- No wireless charging
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
We compared Oppo K12x (China) and Vivo iQOO 15, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Oppo K12x (China) by 84.2% in our overall performance rating.
Oppo K12x (China)
Price unknownperformance
In the "performance" category, the Vivo iQOO 15 significantly outperforms the Oppo K12x (China) (94/100 vs 46/100).
display
In the "display" category, the Vivo iQOO 15 notably outperforms the Oppo K12x (China) (99/100 vs 79/100).
camera
In the "camera" category, the Vivo iQOO 15 significantly outperforms the Oppo K12x (China) (78/100 vs 32/100).
battery
In the "battery" category, the Vivo iQOO 15 notably outperforms the Oppo K12x (China) (85/100 vs 62/100).
portability
In the "portability" category, the Oppo K12x (China) notably outperforms the Vivo iQOO 15 (63/100 vs 48/100).
Which is better: the Oppo K12x (China) or the Vivo iQOO 15?
The Vivo iQOO 15 significantly outperforms the Oppo K12x (China) by 35 points (86/100 vs 51/100).
What is the rating of the Oppo K12x (China) and the Vivo iQOO 15?
The Oppo K12x (China) has a MobileRank rating of 51/100, the Vivo iQOO 15 — 86/100.
Which has the better camera: the Oppo K12x (China) or the Vivo iQOO 15?
The Vivo iQOO 15 leads on camera score (78/100 vs 32/100).
Which is more powerful: the Oppo K12x (China) or the Vivo iQOO 15?
The Vivo iQOO 15 leads on performance (94/100 vs 46/100).
Should you choose the Oppo K12x (China) over the Vivo iQOO 15?
The Oppo K12x (China) is a better fit for everyday use. The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.