Samsung Galaxy M21s vs Vivo iQOO 15 Ultra
The Samsung Galaxy M21s (2020) runs on the Exynos 9611, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 45/100 (a 44-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 6000); the main camera is 64 MP vs 50 MP; the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 355,351); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Samsung Galaxy M21s doesn't; the Samsung Galaxy M21s is noticeably lighter (191g vs 227g).
Profile comparison
Category scores
Samsung Galaxy M21s
Vivo iQOO 15 Ultra
What makes Samsung Galaxy M21s better?
- Better main camera: 64MP vs 50MP
- Lighter: 191g vs 227g
- Better portability (55/100 vs 35/100)
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 355351
- Better Geekbench Single: 3639 vs 365
- Better Geekbench Multi: 11047 vs 1107
- Bigger battery: 7400 vs 6000 mAh
- Faster charging: 120W vs 15W
- Higher performance (99/100 vs 25/100)
- Better camera (78/100 vs 48/100)
- Longer battery life (92/100 vs 51/100)
- Better display (99/100 vs 83/100)
Comparison verdict
Comparing the Samsung Galaxy M21s vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 44 points higher (89/100 vs 45/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 25/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 48/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 51/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Samsung Galaxy M21s (99/100 vs 25/100). In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Samsung Galaxy M21s (99/100 vs 83/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Samsung Galaxy M21s (78/100 vs 48/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Samsung Galaxy M21s (92/100 vs 51/100). In the "portability" category, the Samsung Galaxy M21s notably outperforms the Vivo iQOO 15 Ultra (55/100 vs 35/100).
Specs comparison
| Specification | Samsung Galaxy M21s | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | Exynos 9611 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 355351 | 4602290 | |
| Geekbench Single | 365 | 3639 | |
| Geekbench Multi | 1107 | 11047 | |
| Display | 6.4" Super AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 1080x2340 | 1440x3168 | |
| Refresh rate | — | 144 Hz | |
| Battery | 6000 mAh | 7400 mAh | |
| Charging | 15W | 120W | |
| Wireless charging | 0W | 50W | |
| Main camera | 64 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 4GB / 6GB | 12GB / 16GB / 24GB | |
| Storage | 64GB / 128GB | 256GB / 512GB / 1TB | |
| OS | Android 10, One UI 2.5 | Android 16 | |
| Brightness (peak) | 420 nits | 8000 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 159.2×75.1×8.9 mm | 163.7×76.8×8.7 mm | |
| Weight | 191 g | 227 g | |
| Launch price | — | $799 |
Camera comparison
Samsung Galaxy M21s
- Main: 64MP f/1.8
- Ultrawide: 8MP
- Front: 32MP
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Samsung Galaxy M21s
- 6.4" Super AMOLED
- Resolution: 1080x2340
- Refresh rate: —
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
Samsung Galaxy M21s
- 6000 mAh
- Wired: 15W
- No wireless charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Overall performance score
We compared Samsung Galaxy M21s and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Samsung Galaxy M21s by 92.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Samsung Galaxy M21s
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Samsung Galaxy M21s (99/100 vs 25/100).
display
In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Samsung Galaxy M21s (99/100 vs 83/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Samsung Galaxy M21s (78/100 vs 48/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Samsung Galaxy M21s (92/100 vs 51/100).
portability
In the "portability" category, the Samsung Galaxy M21s notably outperforms the Vivo iQOO 15 Ultra (55/100 vs 35/100).
Frequently asked questions
Which is better: the Samsung Galaxy M21s or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the Samsung Galaxy M21s by 44 points (89/100 vs 45/100).
What is the rating of the Samsung Galaxy M21s and the Vivo iQOO 15 Ultra?
The Samsung Galaxy M21s has a MobileRank rating of 45/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Samsung Galaxy M21s or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 48/100).
Which is more powerful: the Samsung Galaxy M21s or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 25/100).
Should you choose the Samsung Galaxy M21s over the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.