Samsung Galaxy A91 vs Vivo iQOO 15
The Samsung Galaxy A91 (2021) runs on the Qualcomm Snapdragon 855, while the Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 51/100 (a 35-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 4500); the main camera is 48 MP vs 50 MP; the Vivo iQOO 15 is faster in AnTuTu (3,758,268 vs 824,513); the Vivo iQOO 15 has NFC for contactless payments, the Samsung Galaxy A91 doesn't.
Profile comparison
Category scores
Samsung Galaxy A91
Vivo iQOO 15
What makes Samsung Galaxy A91 better?
- Overall rating 51/100
What makes Vivo iQOO 15 better?
- Higher AnTuTu: 3758268 vs 824513
- Better Geekbench Single: 3013 vs 968
- Better Geekbench Multi: 9287 vs 2731
- Bigger battery: 7000 vs 4500 mAh
- Faster charging: 100W vs 45W
- Better main camera: 50MP vs 48MP
- Higher performance (94/100 vs 54/100)
- Better camera (78/100 vs 41/100)
- Longer battery life (85/100 vs 38/100)
- Better display (99/100 vs 81/100)
Comparison verdict
Comparing the Samsung Galaxy A91 vs the Vivo iQOO 15, the Vivo iQOO 15 scores 35 points higher (86/100 vs 51/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 54/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 41/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 38/100). In the "performance" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy A91 (94/100 vs 54/100). In the "display" category, the Vivo iQOO 15 notably outperforms the Samsung Galaxy A91 (99/100 vs 81/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy A91 (78/100 vs 41/100). In the "battery" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy A91 (85/100 vs 38/100).
Specs comparison
| Specification | Samsung Galaxy A91 | Vivo iQOO 15 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 855 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 824513 | 3758268 | |
| Geekbench Single | 968 | 3013 | |
| Geekbench Multi | 2731 | 9287 | |
| Display | 6.7" Super AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 1080x2400 | 1440x3168 | |
| Refresh rate | — | 144 Hz | |
| Battery | 4500 mAh | 7000 mAh | |
| Charging | 45W | 100W | |
| Wireless charging | 0W | 40W | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 12 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 8GB | 12GB / 16GB | |
| Storage | 128GB | 256GB / 512GB / 1TB | |
| OS | Android 10, One UI | Android 16 | |
| Brightness (peak) | — | 6000 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | — | 163.7×76.8×8.1 mm | |
| Weight | — | 215 g | |
| Launch price | — | $599 |
Camera comparison
Samsung Galaxy A91
- Main: 48MP f/2.0
- Ultrawide: 12MP
- Front: 32MP
Vivo iQOO 15
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Samsung Galaxy A91
- 6.7" Super AMOLED
- Resolution: 1080x2400
- Refresh rate: —
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
Samsung Galaxy A91
- 4500 mAh
- Wired: 45W
- No wireless charging
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
Overall performance score
We compared Samsung Galaxy A91 and Vivo iQOO 15, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Samsung Galaxy A91 by 78.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Samsung Galaxy A91
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy A91 (94/100 vs 54/100).
display
In the "display" category, the Vivo iQOO 15 notably outperforms the Samsung Galaxy A91 (99/100 vs 81/100).
camera
In the "camera" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy A91 (78/100 vs 41/100).
battery
In the "battery" category, the Vivo iQOO 15 significantly outperforms the Samsung Galaxy A91 (85/100 vs 38/100).
Frequently asked questions
Which is better: the Samsung Galaxy A91 or the Vivo iQOO 15?
The Vivo iQOO 15 significantly outperforms the Samsung Galaxy A91 by 35 points (86/100 vs 51/100).
What is the rating of the Samsung Galaxy A91 and the Vivo iQOO 15?
The Samsung Galaxy A91 has a MobileRank rating of 51/100, the Vivo iQOO 15 — 86/100.
Which has the better camera: the Samsung Galaxy A91 or the Vivo iQOO 15?
The Vivo iQOO 15 leads on camera score (78/100 vs 41/100).
Which is more powerful: the Samsung Galaxy A91 or the Vivo iQOO 15?
The Vivo iQOO 15 leads on performance (94/100 vs 54/100).
Should you choose the Samsung Galaxy A91 over the Vivo iQOO 15?
The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.