OPPO Find X8 Ultra vs Vivo X21i
The OPPO Find X8 Ultra (2025) runs on the Snapdragon 8 Elite, while the Vivo X21i (2018) runs on the MediaTek Helio P60. By overall MobileRank rating, the OPPO Find X8 Ultra leads — 86/100 vs 29/100 (a 57-point difference). Key differences: the OPPO Find X8 Ultra has the bigger battery (6100 mAh vs 3425); the main camera is 50 MP vs 12 MP; the OPPO Find X8 Ultra is faster in AnTuTu (3,183,101 vs 232,802); the OPPO Find X8 Ultra has NFC for contactless payments, the Vivo X21i doesn't; the Vivo X21i is noticeably lighter (159g vs 226g).
OPPO Find X8 Ultra
Vivo X21i
- Higher AnTuTu: 3183101 vs 232802
- Better Geekbench Single: 3041 vs 341
- Better Geekbench Multi: 9494 vs 779
- Bigger battery: 6100 vs 3425 mAh
- Better main camera: 50MP vs 12MP
- Higher performance (92/100 vs 17/100)
- Better camera (94/100 vs 15/100)
- Longer battery life (78/100 vs 15/100)
- Better display (89/100 vs 82/100)
- Lighter: 159g vs 226g
- Better portability (94/100 vs 35/100)
Comparing the OPPO Find X8 Ultra vs the Vivo X21i, the OPPO Find X8 Ultra scores 57 points higher (86/100 vs 29/100). In the "performance" category, the OPPO Find X8 Ultra leads (92/100 vs 17/100). In the "camera" category, the OPPO Find X8 Ultra leads (94/100 vs 15/100). In the "battery" category, the OPPO Find X8 Ultra leads (78/100 vs 15/100). In the "performance" category, the OPPO Find X8 Ultra significantly outperforms the Vivo X21i (92/100 vs 17/100). In the "display" category, the OPPO Find X8 Ultra is a bit better (89/100 vs 82/100). In the "camera" category, the OPPO Find X8 Ultra significantly outperforms the Vivo X21i (94/100 vs 15/100). In the "battery" category, the OPPO Find X8 Ultra significantly outperforms the Vivo X21i (78/100 vs 15/100). In the "portability" category, the Vivo X21i significantly outperforms the OPPO Find X8 Ultra (94/100 vs 35/100).
| Specification | OPPO Find X8 Ultra | Vivo X21i | |
|---|---|---|---|
| Processor | Snapdragon 8 Elite | MediaTek Helio P60 | |
| AnTuTu | 3183101 | 232802 | |
| Geekbench Single | 3041 | 341 | |
| Geekbench Multi | 9494 | 779 | |
| Display | 6.8" LTPO AMOLED | 6.3" Super AMOLED | |
| Resolution | 3168x1440 | 1080x2280 | |
| Refresh rate | 120 Hz | — | |
| Battery | 6100 mAh | 3425 mAh | |
| Charging | 80W | — | |
| Wireless charging | 50W | — | |
| DXOMark (camera) | 168 | — | |
| Main camera | 50 MP | 12 MP | |
| Ultrawide | 50 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 24 MP | |
| RAM | 12GB / 16GB | 4GB / 6GB | |
| Storage | 256GB / 512GB / 1TB | 64GB / 128GB | |
| OS | Android 15 | Android 8.1 (Oreo); Funtouch 4 | |
| Brightness (peak) | 2500 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 163.1×76.8×8.8 mm | 154.4×75.0×7.0 mm | |
| Weight | 226 g | 159 g | |
| Launch price | $999 | — |
OPPO Find X8 Ultra
- Main: 50MP f/f/1.8
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo X21i
- Main: 12MP f/f/1.8
- Front: 24MP
OPPO Find X8 Ultra
- 6.8" LTPO AMOLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Vivo X21i
- 6.3" Super AMOLED
- Resolution: 1080x2280
- Refresh rate: —
OPPO Find X8 Ultra
- 6100 mAh
- NanoReview test: web browsing 13:45 hrs, total 28:25 hrs
- Wired: 80W
- Wireless: 50W
Vivo X21i
- 3425 mAh
- Wireless charging: no data
We compared OPPO Find X8 Ultra and Vivo X21i, covering their specs and all relevant benchmarks.
OPPO Find X8 Ultra leads Vivo X21i by 1267.3% in our overall performance rating.
Vivo X21i
Price unknownperformance
In the "performance" category, the OPPO Find X8 Ultra significantly outperforms the Vivo X21i (92/100 vs 17/100).
display
In the "display" category, the OPPO Find X8 Ultra is a bit better (89/100 vs 82/100).
camera
In the "camera" category, the OPPO Find X8 Ultra significantly outperforms the Vivo X21i (94/100 vs 15/100).
battery
In the "battery" category, the OPPO Find X8 Ultra significantly outperforms the Vivo X21i (78/100 vs 15/100).
portability
In the "portability" category, the Vivo X21i significantly outperforms the OPPO Find X8 Ultra (94/100 vs 35/100).
Which is better: the OPPO Find X8 Ultra or the Vivo X21i?
The OPPO Find X8 Ultra significantly outperforms the Vivo X21i by 57 points (86/100 vs 29/100).
What is the rating of the OPPO Find X8 Ultra and the Vivo X21i?
The OPPO Find X8 Ultra has a MobileRank rating of 86/100, the Vivo X21i — 29/100.
Which has the better camera: the OPPO Find X8 Ultra or the Vivo X21i?
The OPPO Find X8 Ultra leads on camera score (94/100 vs 15/100).
Which is more powerful: the OPPO Find X8 Ultra or the Vivo X21i?
The OPPO Find X8 Ultra leads on performance (92/100 vs 17/100).
Should you choose the OPPO Find X8 Ultra over the Vivo X21i?
The OPPO Find X8 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers. The Vivo X21i is a better fit for everyday use.