Oppo F31 vs Vivo iQOO Z7
The Oppo F31 (2025) runs on the MediaTek Dimensity 6300, while the Vivo iQOO Z7 (2023) runs on the MediaTek Dimensity 920. By overall MobileRank rating, the Oppo F31 leads — 51/100 vs 50/100 (a 1-point difference). Key differences: the Oppo F31 has the bigger battery (7000 mAh vs 4500); the main camera is 50 MP vs 64 MP; the Vivo iQOO Z7 is faster in AnTuTu (750,481 vs 528,398).
Profile comparison
Category scores
Oppo F31
Vivo iQOO Z7
What makes Oppo F31 better?
- Bigger battery: 7000 vs 4500 mAh
- Faster charging: 80W vs 44W
- Higher refresh rate: 120Hz vs 90Hz
- Longer battery life (68/100 vs 38/100)
- Better display (80/100 vs 69/100)
What makes Vivo iQOO Z7 better?
- Higher AnTuTu: 750481 vs 528398
- Better Geekbench Single: 936 vs 771
- Better Geekbench Multi: 2318 vs 1980
- Better main camera: 64MP vs 50MP
- Lighter: 173g vs 185g
- Higher performance (51/100 vs 43/100)
- Better camera (40/100 vs 32/100)
- Better portability (77/100 vs 68/100)
Comparison verdict
Comparing the Oppo F31 vs the Vivo iQOO Z7, the Oppo F31 scores 1 points higher (51/100 vs 50/100). In the "battery" category, the Oppo F31 leads (68/100 vs 38/100). In the "performance" category, the Vivo iQOO Z7 is a bit better (51/100 vs 43/100). In the "display" category, the Oppo F31 is a bit better (80/100 vs 69/100). In the "camera" category, the Vivo iQOO Z7 is a bit better (40/100 vs 32/100). In the "battery" category, the Oppo F31 significantly outperforms the Vivo iQOO Z7 (68/100 vs 38/100). In the "portability" category, the Vivo iQOO Z7 is a bit better (77/100 vs 68/100).
Specs comparison
| Specification | Oppo F31 | Vivo iQOO Z7 | |
|---|---|---|---|
| Processor | MediaTek Dimensity 6300 | MediaTek Dimensity 920 | |
| AnTuTu | 528398 | 750481 | |
| Geekbench Single | 771 | 936 | |
| Geekbench Multi | 1980 | 2318 | |
| Display | 6.6" AMOLED | 6.4" AMOLED | |
| Resolution | 1080x2372 | 1080x2400 | |
| Refresh rate | 120 Hz | 90 Hz | |
| Battery | 7000 mAh | 4500 mAh | |
| Charging | 80W | 44W | |
| Main camera | 50 MP | 64 MP | |
| Front camera | 16 MP | 16 MP | |
| RAM | 8GB | 6GB / 8GB | |
| Storage | 128GB / 256GB | 128GB | |
| OS | Android 15, ColorOS 15 | Android 13, Funtouch 13 | |
| Brightness (peak) | 1400 nits | 1300 nits | |
| NFC | no | no | |
| Protection | IP68 | IP54 | |
| Dimensions | 158.2×75.0×8.0 mm | 158.9×73.5×7.8 mm | |
| Weight | 185 g | 173 g | |
| Launch price | — | — |
Camera comparison
Oppo F31
- Main: 50MP f/1.8
- Front: 16MP
Vivo iQOO Z7
- Main: 64MP
- Front: 16MP
Display comparison
Oppo F31
- 6.6" AMOLED
- Resolution: 1080x2372
- Refresh rate: 120 Hz
Vivo iQOO Z7
- 6.4" AMOLED
- Resolution: 1080x2400
- Refresh rate: 90 Hz
Battery and charging
Oppo F31
- 7000 mAh
- Wired: 80W
- No wireless charging
Vivo iQOO Z7
- 4500 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Oppo F31 and Vivo iQOO Z7, covering their specs and all relevant benchmarks.
Vivo iQOO Z7 leads Oppo F31 by 29.6% in our overall performance rating.
Benchmarks
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO Z7 is a bit better (51/100 vs 43/100).
display
In the "display" category, the Oppo F31 is a bit better (80/100 vs 69/100).
camera
In the "camera" category, the Vivo iQOO Z7 is a bit better (40/100 vs 32/100).
battery
In the "battery" category, the Oppo F31 significantly outperforms the Vivo iQOO Z7 (68/100 vs 38/100).
portability
In the "portability" category, the Vivo iQOO Z7 is a bit better (77/100 vs 68/100).
Frequently asked questions
Which is better: the Oppo F31 or the Vivo iQOO Z7?
The Oppo F31 edges out the Vivo iQOO Z7 by just 1 points — the two devices are very close in overall level.
What is the rating of the Oppo F31 and the Vivo iQOO Z7?
The Oppo F31 has a MobileRank rating of 51/100, the Vivo iQOO Z7 — 50/100.
Which has the better camera: the Oppo F31 or the Vivo iQOO Z7?
The Vivo iQOO Z7 leads on camera score (40/100 vs 32/100).
Which is more powerful: the Oppo F31 or the Vivo iQOO Z7?
The Vivo iQOO Z7 leads on performance (51/100 vs 43/100).
Should you choose the Oppo F31 over the Vivo iQOO Z7?
Neither model stands out enough to recommend it for a specific use case: the clearest difference is battery life — better on the Oppo F31 (68/100 vs 38/100).