Samsung Galaxy S21+ vs Vivo iQOO 15
The Samsung Galaxy S21+ (2021) runs on the Samsung Exynos 2100, while the Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $999 and $599. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 57/100 (a 29-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 4800); the main camera is 12 MP vs 50 MP; the Vivo iQOO 15 is faster in AnTuTu (3,740,528 vs 1,017,773); the Samsung Galaxy S21+ is noticeably lighter (200g vs 215g).
Samsung Galaxy S21+
Vivo iQOO 15
- Lighter: 200g vs 215g
- Better portability (60/100 vs 48/100)
- Higher AnTuTu: 3740528 vs 1017773
- Better Geekbench Single: 3041 vs 1435
- Better Geekbench Multi: 9494 vs 3555
- Bigger battery: 7000 vs 4800 mAh
- Faster charging: 100W vs 25W
- Better main camera: 50MP vs 12MP
- Higher refresh rate: 144Hz vs 120Hz
- Faster wireless charging: 40W vs 15W
- Cheaper at launch: $599 vs $999
- Higher performance (94/100 vs 62/100)
- Better camera (78/100 vs 42/100)
- Longer battery life (85/100 vs 48/100)
- Better display (99/100 vs 79/100)
- Better value for money (84/100 vs 26/100)
Comparing the Samsung Galaxy S21+ vs the Vivo iQOO 15, the Vivo iQOO 15 scores 29 points higher (86/100 vs 57/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 62/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 42/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 48/100). In the "value for money" category, the Vivo iQOO 15 leads (84/100 vs 26/100). In the "performance" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy S21+ (94/100 vs 62/100). In the "display" category, the Vivo iQOO 15 notably outperforms the Samsung Galaxy S21+ (99/100 vs 79/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy S21+ (78/100 vs 42/100). In the "battery" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy S21+ (85/100 vs 48/100). In the "portability" category, the Samsung Galaxy S21+ is a bit better (60/100 vs 48/100). In the "value for money" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy S21+ (84/100 vs 26/100).
| Specification | Samsung Galaxy S21+ | Vivo iQOO 15 | |
|---|---|---|---|
| Processor | Samsung Exynos 2100 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1017773 | 3740528 | |
| Geekbench Single | 1435 | 3041 | |
| Geekbench Multi | 3555 | 9494 | |
| Display | 6.7" Dynamic AMOLED 2X | 6.8" LTPO AMOLED | |
| Resolution | 2400x1080 | 1440x3168 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 4800 mAh | 7000 mAh | |
| Charging | 25W | 100W | |
| Wireless charging | 15W | 40W | |
| Main camera | 12 MP | 50 MP | |
| Ultrawide | 12 MP | 50 MP | |
| Telephoto | 64 MP | 50 MP | |
| Front camera | 10 MP | 32 MP | |
| RAM | 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 11 | Android 16 | |
| Brightness (peak) | — | 6000 nits | |
| NFC | — | yes | |
| Protection | — | IP68 | |
| Dimensions | — | 163.7×76.8×8.1 mm | |
| Weight | 200 g | 215 g | |
| Launch price | $999 | $599 |
Samsung Galaxy S21+
- Main: 12MP f/1.8
- Ultrawide: 12MP
- Telephoto: 64MP
- Front: 10MP
Vivo iQOO 15
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Samsung Galaxy S21+
- 6.7" Dynamic AMOLED 2X
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Samsung Galaxy S21+
- 4800 mAh
- Wired: 25W
- Wireless: 15W
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
We compared Samsung Galaxy S21+ and Vivo iQOO 15, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Samsung Galaxy S21+ by 72.8% in our overall performance rating.
Launch price difference: $400. Vivo iQOO 15 was $400 cheaper at launch.
performance
In the "performance" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy S21+ (94/100 vs 62/100).
display
In the "display" category, the Vivo iQOO 15 notably outperforms the Samsung Galaxy S21+ (99/100 vs 79/100).
camera
In the "camera" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy S21+ (78/100 vs 42/100).
battery
In the "battery" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy S21+ (85/100 vs 48/100).
portability
In the "portability" category, the Samsung Galaxy S21+ is a bit better (60/100 vs 48/100).
value for money
In the "value for money" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy S21+ (84/100 vs 26/100).
Which is better: the Samsung Galaxy S21+ or the Vivo iQOO 15?
The Vivo iQOO 15 significantly outperforms the Samsung Galaxy S21+ by 29 points (86/100 vs 57/100).
What is the rating of the Samsung Galaxy S21+ and the Vivo iQOO 15?
The Samsung Galaxy S21+ has a MobileRank rating of 57/100, the Vivo iQOO 15 — 86/100.
Which has the better camera: the Samsung Galaxy S21+ or the Vivo iQOO 15?
The Vivo iQOO 15 leads on camera score (78/100 vs 42/100).
Which is more powerful: the Samsung Galaxy S21+ or the Vivo iQOO 15?
The Vivo iQOO 15 leads on performance (94/100 vs 62/100).
Should you choose the Samsung Galaxy S21+ over the Vivo iQOO 15?
The Samsung Galaxy S21+ is a better fit for active users. The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.