Oppo F31 vs Vivo iQOO 15 Ultra
The Oppo F31 (2025) runs on the MediaTek Dimensity 6300, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 51/100 (a 38-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 7000); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 528,398); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Oppo F31 doesn't; the Oppo F31 is noticeably lighter (185g vs 227g).
Profile comparison
Category scores
Oppo F31
Vivo iQOO 15 Ultra
What makes Oppo F31 better?
- Lighter: 185g vs 227g
- Better portability (68/100 vs 35/100)
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 528398
- Better Geekbench Single: 3639 vs 771
- Better Geekbench Multi: 11047 vs 1980
- Bigger battery: 7400 vs 7000 mAh
- Faster charging: 120W vs 80W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (99/100 vs 43/100)
- Better camera (78/100 vs 32/100)
- Longer battery life (92/100 vs 68/100)
- Better display (99/100 vs 80/100)
Comparison verdict
Comparing the Oppo F31 vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 38 points higher (89/100 vs 51/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 43/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 32/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 68/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Oppo F31 (99/100 vs 43/100). In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Oppo F31 (99/100 vs 80/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Oppo F31 (78/100 vs 32/100). In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Oppo F31 (92/100 vs 68/100). In the "portability" category, the Oppo F31 significantly outperforms the Vivo iQOO 15 Ultra (68/100 vs 35/100).
Specs comparison
| Specification | Oppo F31 | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 6300 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 528398 | 4602290 | |
| Geekbench Single | 771 | 3639 | |
| Geekbench Multi | 1980 | 11047 | |
| Display | 6.6" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 1080x2372 | 1440x3168 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 7000 mAh | 7400 mAh | |
| Charging | 80W | 120W | |
| Wireless charging | 0W | 50W | |
| 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 / 16GB / 24GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 15, ColorOS 15 | Android 16 | |
| Brightness (peak) | 1400 nits | 8000 nits | |
| NFC | no | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 158.2×75.0×8.0 mm | 163.7×76.8×8.7 mm | |
| Weight | 185 g | 227 g | |
| Launch price | — | $799 |
Camera comparison
Oppo F31
- Main: 50MP f/1.8
- Front: 16MP
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Oppo F31
- 6.6" AMOLED
- Resolution: 1080x2372
- Refresh rate: 120 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
Oppo F31
- 7000 mAh
- Wired: 80W
- No wireless charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Overall performance score
We compared Oppo F31 and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Oppo F31 by 88.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Oppo F31
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Oppo F31 (99/100 vs 43/100).
display
In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Oppo F31 (99/100 vs 80/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Oppo F31 (78/100 vs 32/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Oppo F31 (92/100 vs 68/100).
portability
In the "portability" category, the Oppo F31 significantly outperforms the Vivo iQOO 15 Ultra (68/100 vs 35/100).
Frequently asked questions
Which is better: the Oppo F31 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the Oppo F31 by 38 points (89/100 vs 51/100).
What is the rating of the Oppo F31 and the Vivo iQOO 15 Ultra?
The Oppo F31 has a MobileRank rating of 51/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Oppo F31 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 32/100).
Which is more powerful: the Oppo F31 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 43/100).
Should you choose the Oppo F31 over the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.