Vivo iQOO 15 vs Vivo S21 Pro
The Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo S21 Pro (2024) runs on the MediaTek Dimensity 9300+. By overall MobileRank rating, the Vivo iQOO 15 leads — 88/100 vs 79/100 (a 9-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 5500); the Vivo iQOO 15 is faster in AnTuTu (3,950,082 vs 2,348,248).
Profile comparison
Category scores
Vivo iQOO 15
Vivo S21 Pro
What makes Vivo iQOO 15 better?
- Higher AnTuTu: 3950082 vs 2348248
- Better Geekbench Single: 3639 vs 2249
- Better Geekbench Multi: 11047 vs 7352
- Bigger battery: 7000 vs 5500 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (98/100 vs 83/100)
- Longer battery life (85/100 vs 64/100)
- Better display (99/100 vs 85/100)
What makes Vivo S21 Pro better?
- Better camera (81/100 vs 78/100)
Comparison verdict
Comparing the Vivo iQOO 15 vs the Vivo S21 Pro, the Vivo iQOO 15 scores 9 points higher (88/100 vs 79/100). In the "performance" category, the Vivo iQOO 15 leads (98/100 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 notably outperforms the Vivo S21 Pro (98/100 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).
Specs comparison
| Specification | Vivo iQOO 15 | Vivo S21 Pro | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | MediaTek Dimensity 9300+ | |
| AnTuTu | 3950082 | 2348248 | |
| Geekbench Single | 3639 | 2249 | |
| Geekbench Multi | 11047 | 7352 | |
| 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 | — | |
| Launch price | $599 | — |
Camera comparison
Vivo iQOO 15
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo S21 Pro
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 50MP
Display comparison
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
Battery and charging
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
Overall performance score
We compared Vivo iQOO 15 and Vivo S21 Pro, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Vivo S21 Pro by 68.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo S21 Pro
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 notably outperforms the Vivo S21 Pro (98/100 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).
Frequently asked questions
Which is better: the Vivo iQOO 15 or the Vivo S21 Pro?
The Vivo iQOO 15 edges out the Vivo S21 Pro by just 9 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 88/100, 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 (98/100 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, budget-conscious buyers. The Vivo S21 Pro is a better fit for gamers and power users, mobile photography enthusiasts.