Samsung Galaxy S21 Ultra vs Vivo X300 Pro
The Samsung Galaxy S21 Ultra (2021) runs on the Samsung Exynos 2100, while the Vivo X300 Pro (2025) runs on the Dimensity 9500; launch prices were $1199 and $899. By overall MobileRank rating, the Vivo X300 Pro leads — 87/100 vs 61/100 (a 26-point difference). Key differences: the Vivo X300 Pro has the bigger battery (6510 mAh vs 5000); the main camera is 108 MP vs 200 MP; the Vivo X300 Pro is faster in AnTuTu (3,269,794 vs 1,074,182); per DXOMark lab testing, the Vivo X300 Pro has the stronger camera (171 vs 117).
Samsung Galaxy S21 Ultra
Vivo X300 Pro
- Better display (89/100 vs 84/100)
- Higher AnTuTu: 3269794 vs 1074182
- Better Geekbench Single: 3228 vs 1435
- Better Geekbench Multi: 9553 vs 3555
- Bigger battery: 6510 vs 5000 mAh
- Faster charging: 90W vs 25W
- Better main camera: 200MP vs 108MP
- Faster wireless charging: 40W vs 15W
- Lighter: 226g vs 228g
- Cheaper at launch: $899 vs $1199
- Higher performance (93/100 vs 63/100)
- Better camera (96/100 vs 55/100)
- Longer battery life (81/100 vs 52/100)
- Better portability (43/100 vs 33/100)
Comparing the Samsung Galaxy S21 Ultra vs the Vivo X300 Pro, the Vivo X300 Pro scores 26 points higher (87/100 vs 61/100). In the "performance" category, the Vivo X300 Pro leads (93/100 vs 63/100). In the "camera" category, the Vivo X300 Pro leads (96/100 vs 55/100). In the "battery" category, the Vivo X300 Pro leads (81/100 vs 52/100). Value score: Samsung Galaxy S21 Ultra — 32/100, Vivo X300 Pro — 86/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo X300 Pro significantly outperforms the Samsung Galaxy S21 Ultra (93/100 vs 63/100). In the "display" category, the Samsung Galaxy S21 Ultra is a bit better (89/100 vs 84/100). In the "camera" category, the Vivo X300 Pro significantly outperforms the Samsung Galaxy S21 Ultra (96/100 vs 55/100). In the "battery" category, the Vivo X300 Pro notably outperforms the Samsung Galaxy S21 Ultra (81/100 vs 52/100). In the "portability" category, the Vivo X300 Pro is a bit better (43/100 vs 33/100).
| Specification | Samsung Galaxy S21 Ultra | Vivo X300 Pro | |
|---|---|---|---|
| Processor | Samsung Exynos 2100 | Dimensity 9500 | |
| AnTuTu | 1074182 | 3269794 | |
| Geekbench Single | 1435 | 3228 | |
| Geekbench Multi | 3555 | 9553 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 3200x1440 | 1260x2800 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5000 mAh | 6510 mAh | |
| Charging | 25W | 90W | |
| Wireless charging | 15W | 40W | |
| DXOMark (camera) | 117 | 171 | |
| Main camera | 108 MP | 200 MP | |
| Ultrawide | 12 MP | 50 MP | |
| Telephoto | 10 MP | 50 MP | |
| Front camera | 40 MP | 32 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 128GB / 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 11 | Android 16 | |
| Brightness (peak) | 1500 nits | 4500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 165.1×75.6×8.9 mm | 161.2×75.5×8.0 mm | |
| Weight | 228 g | 226 g | |
| Launch price | $1199 | $899 |
Samsung Galaxy S21 Ultra
- Main: 108MP f/1.8
- Ultrawide: 12MP
- Telephoto: 10MP
- Front: 40MP
Vivo X300 Pro
- Main: 200MP f/f/1.57
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Samsung Galaxy S21 Ultra
- 6.8" AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Vivo X300 Pro
- 6.8" AMOLED
- Resolution: 1260x2800
- Refresh rate: 120 Hz
Samsung Galaxy S21 Ultra
- 5000 mAh
- Wired: 25W
- Wireless: 15W
Vivo X300 Pro
- 6510 mAh
- NanoReview test: web browsing 13:30 hrs, total 24:37 hrs
- Wired: 90W
- Wireless: 40W
We compared Samsung Galaxy S21 Ultra and Vivo X300 Pro, covering their specs and all relevant benchmarks.
Vivo X300 Pro leads Samsung Galaxy S21 Ultra by 67.1% in our overall performance rating.
Launch price difference: $300. Vivo X300 Pro was $300 cheaper at launch.
performance
In the "performance" category, the Vivo X300 Pro significantly outperforms the Samsung Galaxy S21 Ultra (93/100 vs 63/100).
display
In the "display" category, the Samsung Galaxy S21 Ultra is a bit better (89/100 vs 84/100).
camera
In the "camera" category, the Vivo X300 Pro significantly outperforms the Samsung Galaxy S21 Ultra (96/100 vs 55/100).
battery
In the "battery" category, the Vivo X300 Pro notably outperforms the Samsung Galaxy S21 Ultra (81/100 vs 52/100).
portability
In the "portability" category, the Vivo X300 Pro is a bit better (43/100 vs 33/100).
Which is better: the Samsung Galaxy S21 Ultra or the Vivo X300 Pro?
The Vivo X300 Pro significantly outperforms the Samsung Galaxy S21 Ultra by 26 points (87/100 vs 61/100).
What is the rating of the Samsung Galaxy S21 Ultra and the Vivo X300 Pro?
The Samsung Galaxy S21 Ultra has a MobileRank rating of 61/100, the Vivo X300 Pro — 87/100.
Which has the better camera: the Samsung Galaxy S21 Ultra or the Vivo X300 Pro?
The Vivo X300 Pro leads on camera score (96/100 vs 55/100).
Which is more powerful: the Samsung Galaxy S21 Ultra or the Vivo X300 Pro?
The Vivo X300 Pro leads on performance (93/100 vs 63/100).
Should you choose the Samsung Galaxy S21 Ultra over the Vivo X300 Pro?
The Samsung Galaxy S21 Ultra is a better fit for active users. The Vivo X300 Pro is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.