Samsung Galaxy S21 vs Vivo iQOO 15T
The Samsung Galaxy S21 (2021) runs on the Samsung Exynos 2100, while the Vivo iQOO 15T (2026) runs on the MediaTek Dimensity 9500; launch prices were $799 and $499. By overall MobileRank rating, the Vivo iQOO 15T leads — 82/100 vs 55/100 (a 27-point difference). Key differences: the Vivo iQOO 15T has the bigger battery (8000 mAh vs 4000); the main camera is 12 MP vs 200 MP; the Vivo iQOO 15T is faster in AnTuTu (3,815,522 vs 1,074,811); the Samsung Galaxy S21 is noticeably lighter (169g vs 216g).
Samsung Galaxy S21
Vivo iQOO 15T
- Lighter: 169g vs 216g
- Better portability (79/100 vs 44/100)
- Higher AnTuTu: 3815522 vs 1074811
- Better Geekbench Single: 3228 vs 1435
- Better Geekbench Multi: 9553 vs 3555
- Bigger battery: 8000 vs 4000 mAh
- Faster charging: 100W vs 25W
- Better main camera: 200MP vs 12MP
- Higher refresh rate: 144Hz vs 120Hz
- Cheaper at launch: $499 vs $799
- Higher performance (95/100 vs 63/100)
- Better camera (65/100 vs 42/100)
- Longer battery life (75/100 vs 31/100)
- Better display (99/100 vs 82/100)
Comparing the Samsung Galaxy S21 vs the Vivo iQOO 15T, the Vivo iQOO 15T scores 27 points higher (82/100 vs 55/100). In the "performance" category, the Vivo iQOO 15T leads (95/100 vs 63/100). In the "camera" category, the Vivo iQOO 15T leads (65/100 vs 42/100). In the "battery" category, the Vivo iQOO 15T leads (75/100 vs 31/100). Value score: Samsung Galaxy S21 — 22/100, Vivo iQOO 15T — 90/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo iQOO 15T significantly outperforms the Samsung Galaxy S21 (95/100 vs 63/100). In the "display" category, the Vivo iQOO 15T notably outperforms the Samsung Galaxy S21 (99/100 vs 82/100). In the "camera" category, the Vivo iQOO 15T notably outperforms the Samsung Galaxy S21 (65/100 vs 42/100). In the "battery" category, the Vivo iQOO 15T significantly outperforms the Samsung Galaxy S21 (75/100 vs 31/100). In the "portability" category, the Samsung Galaxy S21 significantly outperforms the Vivo iQOO 15T (79/100 vs 44/100).
| Specification | Samsung Galaxy S21 | Vivo iQOO 15T | |
|---|---|---|---|
| Processor | Samsung Exynos 2100 | MediaTek Dimensity 9500 | |
| AnTuTu | 1074811 | 3815522 | |
| Geekbench Single | 1435 | 3228 | |
| Geekbench Multi | 3555 | 9553 | |
| Display | 6.2" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 1080x2400 | 1440x3168 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 4000 mAh | 8000 mAh | |
| Charging | 25W | 100W | |
| Wireless charging | 15W | 0W | |
| Main camera | 12 MP | 200 MP | |
| Ultrawide | 12 MP | 50 MP | |
| Telephoto | 64 MP | 0 MP | |
| Front camera | 10 MP | 16 MP | |
| RAM | 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 11, One UI 3.1 | Android 16 | |
| Brightness (peak) | 1300 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 161.5×75.6×7.8 mm | — | |
| Weight | 169 g | 216 g | |
| Launch price | $799 | $499 |
Samsung Galaxy S21
- Main: 12MP
- Ultrawide: 12MP
- Telephoto: 64MP
- Front: 10MP
Vivo iQOO 15T
- Main: 200MP f/f/1.8
- Ultrawide: 50MP
- Front: 16MP
Samsung Galaxy S21
- 6.2" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Vivo iQOO 15T
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Samsung Galaxy S21
- 4000 mAh
- Wired: 25W
- Wireless: 15W
Vivo iQOO 15T
- 8000 mAh
- Wired: 100W
- No wireless charging
We compared Samsung Galaxy S21 and Vivo iQOO 15T, covering their specs and all relevant benchmarks.
Vivo iQOO 15T leads Samsung Galaxy S21 by 71.8% in our overall performance rating.
Launch price difference: $300. Vivo iQOO 15T was $300 cheaper at launch.
performance
In the "performance" category, the Vivo iQOO 15T significantly outperforms the Samsung Galaxy S21 (95/100 vs 63/100).
display
In the "display" category, the Vivo iQOO 15T notably outperforms the Samsung Galaxy S21 (99/100 vs 82/100).
camera
In the "camera" category, the Vivo iQOO 15T notably outperforms the Samsung Galaxy S21 (65/100 vs 42/100).
battery
In the "battery" category, the Vivo iQOO 15T significantly outperforms the Samsung Galaxy S21 (75/100 vs 31/100).
portability
In the "portability" category, the Samsung Galaxy S21 significantly outperforms the Vivo iQOO 15T (79/100 vs 44/100).
Which is better: the Samsung Galaxy S21 or the Vivo iQOO 15T?
The Vivo iQOO 15T significantly outperforms the Samsung Galaxy S21 by 27 points (82/100 vs 55/100).
What is the rating of the Samsung Galaxy S21 and the Vivo iQOO 15T?
The Samsung Galaxy S21 has a MobileRank rating of 55/100, the Vivo iQOO 15T — 82/100.
Which has the better camera: the Samsung Galaxy S21 or the Vivo iQOO 15T?
The Vivo iQOO 15T leads on camera score (65/100 vs 42/100).
Which is more powerful: the Samsung Galaxy S21 or the Vivo iQOO 15T?
The Vivo iQOO 15T leads on performance (95/100 vs 63/100).
Should you choose the Samsung Galaxy S21 over the Vivo iQOO 15T?
The Samsung Galaxy S21 is a better fit for active users. The Vivo iQOO 15T is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.