Vivo iQOO 15 vs Vivo S21 Pro
The Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo S21 Pro (2024) runs on the MediaTek Dimensity 9300+. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 79/100 (a 7-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 5500); the Vivo iQOO 15 is faster in AnTuTu (3,740,528 vs 2,351,914).
Vivo iQOO 15
Vivo S21 Pro
- Higher AnTuTu: 3740528 vs 2351914
- Better Geekbench Single: 3041 vs 2250
- Better Geekbench Multi: 9494 vs 7315
- Bigger battery: 7000 vs 5500 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (94/100 vs 83/100)
- Longer battery life (85/100 vs 64/100)
- Better display (99/100 vs 85/100)
- Better camera (81/100 vs 78/100)
Comparing the Vivo iQOO 15 vs the Vivo S21 Pro, the Vivo iQOO 15 scores 7 points higher (86/100 vs 79/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 83/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 64/100). In the "performance" category, the Vivo iQOO 15 is a bit better (94/100 vs 83/100). In the "display" category, the Vivo iQOO 15 is a bit better (99/100 vs 85/100). In the "camera" category, the Vivo S21 Pro and the Vivo iQOO 15 are nearly equal (81/100 vs 78/100). In the "battery" category, the Vivo iQOO 15 notably outperforms the Vivo S21 Pro (85/100 vs 64/100).
| Specification | Vivo iQOO 15 | Vivo S21 Pro | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Dimensity 9300+ | |
| AnTuTu | 3740528 | 2351914 | |
| Geekbench Single | 3041 | 2250 | |
| Geekbench Multi | 9494 | 7315 | |
| Display | 6.8" LTPO AMOLED | 6.7" AMOLED | |
| Resolution | 1440x3168 | 1260x2800 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7000 mAh | 5500 mAh | |
| Charging | 100W | 90W | |
| Wireless charging | 40W | 0W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 32 MP | 50 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 256GB / 512GB / 1TB | 512GB | |
| OS | Android 16 | Android 15, OriginOS 5 | |
| Brightness (peak) | 6000 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 163.7×76.8×8.1 mm | — | |
| Weight | 215 g | — | |
| Price | $599 | — |
Vivo iQOO 15
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo S21 Pro
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 50MP
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo S21 Pro
- 6.7" AMOLED
- Resolution: 1260x2800
- Refresh rate: 120 Hz
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
Vivo S21 Pro
- 5500 mAh
- Wired: 90W
- No wireless charging
We compared Vivo iQOO 15 and Vivo S21 Pro, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Vivo S21 Pro by 59.0% in our overall performance rating.
Vivo S21 Pro
Price unknownperformance
In the "performance" category, the Vivo iQOO 15 is a bit better (94/100 vs 83/100).
display
In the "display" category, the Vivo iQOO 15 is a bit better (99/100 vs 85/100).
camera
In the "camera" category, the Vivo S21 Pro and the Vivo iQOO 15 are nearly equal (81/100 vs 78/100).
battery
In the "battery" category, the Vivo iQOO 15 notably outperforms the Vivo S21 Pro (85/100 vs 64/100).
Which is better: the Vivo iQOO 15 or the Vivo S21 Pro?
The Vivo iQOO 15 edges out the Vivo S21 Pro by just 7 points — the two devices are very close in overall level.
What is the rating of the Vivo iQOO 15 and the Vivo S21 Pro?
The Vivo iQOO 15 has a MobileRank rating of 86/100, the Vivo S21 Pro — 79/100.
Which is more powerful: the Vivo iQOO 15 or the Vivo S21 Pro?
The Vivo iQOO 15 leads on performance (94/100 vs 83/100).
Should you choose the Vivo iQOO 15 over the Vivo S21 Pro?
The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life. The Vivo S21 Pro is a better fit for gamers and power users, mobile photography enthusiasts.