OPPO Find X8 Ultra vs Samsung Galaxy S21 Ultra
The OPPO Find X8 Ultra (2025) runs on the Snapdragon 8 Elite, while the Samsung Galaxy S21 Ultra (2021) runs on the Samsung Exynos 2100; launch prices were $999 and $1199. By overall MobileRank rating, the OPPO Find X8 Ultra leads — 86/100 vs 61/100 (a 25-point difference). Key differences: the OPPO Find X8 Ultra has the bigger battery (6100 mAh vs 5000); the main camera is 50 MP vs 108 MP; the OPPO Find X8 Ultra is faster in AnTuTu (3,183,101 vs 1,074,182); per DXOMark lab testing, the OPPO Find X8 Ultra has the stronger camera (168 vs 117).
Profile comparison
Category scores
OPPO Find X8 Ultra
Samsung Galaxy S21 Ultra
What makes OPPO Find X8 Ultra better?
- Higher AnTuTu: 3183101 vs 1074182
- Better Geekbench Single: 3013 vs 1435
- Better Geekbench Multi: 9287 vs 3555
- Bigger battery: 6100 vs 5000 mAh
- Faster charging: 80W vs 25W
- Faster wireless charging: 50W vs 15W
- Lighter: 226g vs 228g
- Cheaper at launch: $999 vs $1199
- Higher performance (91/100 vs 63/100)
- Better camera (94/100 vs 55/100)
- Longer battery life (78/100 vs 52/100)
- Better portability (35/100 vs 33/100)
What makes Samsung Galaxy S21 Ultra better?
- Better main camera: 108MP vs 50MP
- Overall rating 61/100
Comparison verdict
Comparing the OPPO Find X8 Ultra vs the Samsung Galaxy S21 Ultra, the OPPO Find X8 Ultra scores 25 points higher (86/100 vs 61/100). In the "performance" category, the OPPO Find X8 Ultra leads (91/100 vs 63/100). In the "camera" category, the OPPO Find X8 Ultra leads (94/100 vs 55/100). In the "battery" category, the OPPO Find X8 Ultra leads (78/100 vs 52/100). Value score: OPPO Find X8 Ultra — 82/100, Samsung Galaxy S21 Ultra — 32/100; 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 OPPO Find X8 Ultra notably outperforms the Samsung Galaxy S21 Ultra (91/100 vs 63/100). In the "display" category, both devices are on the same level — 89/100. In the "camera" category, the OPPO Find X8 Ultra significantly outperforms the Samsung Galaxy S21 Ultra (94/100 vs 55/100). In the "battery" category, the OPPO Find X8 Ultra notably outperforms the Samsung Galaxy S21 Ultra (78/100 vs 52/100). In the "portability" category, the OPPO Find X8 Ultra and the Samsung Galaxy S21 Ultra are nearly equal (35/100 vs 33/100).
Specs comparison
| Specification | OPPO Find X8 Ultra | Samsung Galaxy S21 Ultra | |
|---|---|---|---|
| Processor | Snapdragon 8 Elite | Samsung Exynos 2100 | |
| AnTuTu | 3183101 | 1074182 | |
| Geekbench Single | 3013 | 1435 | |
| Geekbench Multi | 9287 | 3555 | |
| Display | 6.8" LTPO AMOLED | 6.8" AMOLED | |
| Resolution | 3168x1440 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6100 mAh | 5000 mAh | |
| Charging | 80W | 25W | |
| Wireless charging | 50W | 15W | |
| DXOMark (camera) | 168 | 117 | |
| Main camera | 50 MP | 108 MP | |
| Ultrawide | 50 MP | 12 MP | |
| Telephoto | 50 MP | 10 MP | |
| Front camera | 32 MP | 40 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 128GB / 256GB / 512GB | |
| OS | Android 15 | Android 11 | |
| Brightness (peak) | 2500 nits | 1500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 163.1×76.8×8.8 mm | 165.1×75.6×8.9 mm | |
| Weight | 226 g | 228 g | |
| Launch price | $999 | $1199 |
Camera comparison
OPPO Find X8 Ultra
- Main: 50MP f/1.8
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Samsung Galaxy S21 Ultra
- Main: 108MP f/1.8
- Ultrawide: 12MP
- Telephoto: 10MP
- Front: 40MP
Display comparison
OPPO Find X8 Ultra
- 6.8" LTPO AMOLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Samsung Galaxy S21 Ultra
- 6.8" AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
OPPO Find X8 Ultra
- 6100 mAh
- NanoReview test: web browsing 13:45 hrs, total 28:25 hrs
- Wired: 80W
- Wireless: 50W
Samsung Galaxy S21 Ultra
- 5000 mAh
- Wired: 25W
- Wireless: 15W
Overall performance score
We compared OPPO Find X8 Ultra and Samsung Galaxy S21 Ultra, covering their specs and all relevant benchmarks.
OPPO Find X8 Ultra leads Samsung Galaxy S21 Ultra by 196.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $200. OPPO Find X8 Ultra was $200 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the OPPO Find X8 Ultra notably outperforms the Samsung Galaxy S21 Ultra (91/100 vs 63/100).
display
In the "display" category, both devices are on the same level — 89/100.
camera
In the "camera" category, the OPPO Find X8 Ultra significantly outperforms the Samsung Galaxy S21 Ultra (94/100 vs 55/100).
battery
In the "battery" category, the OPPO Find X8 Ultra notably outperforms the Samsung Galaxy S21 Ultra (78/100 vs 52/100).
portability
In the "portability" category, the OPPO Find X8 Ultra and the Samsung Galaxy S21 Ultra are nearly equal (35/100 vs 33/100).
Frequently asked questions
Which is better: the OPPO Find X8 Ultra or the Samsung Galaxy S21 Ultra?
The OPPO Find X8 Ultra significantly outperforms the Samsung Galaxy S21 Ultra by 25 points (86/100 vs 61/100).
What is the rating of the OPPO Find X8 Ultra and the Samsung Galaxy S21 Ultra?
The OPPO Find X8 Ultra has a MobileRank rating of 86/100, the Samsung Galaxy S21 Ultra — 61/100.
Which has the better camera: the OPPO Find X8 Ultra or the Samsung Galaxy S21 Ultra?
The OPPO Find X8 Ultra leads on camera score (94/100 vs 55/100).
Which is more powerful: the OPPO Find X8 Ultra or the Samsung Galaxy S21 Ultra?
The OPPO Find X8 Ultra leads on performance (91/100 vs 63/100).
Should you choose the OPPO Find X8 Ultra over the Samsung Galaxy S21 Ultra?
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 Samsung Galaxy S21 Ultra is a better fit for active users.