OnePlus Ace 6 Ultra vs Samsung Galaxy A21s
The OnePlus Ace 6 Ultra (2026) runs on the MediaTek Dimensity 9500, while the Samsung Galaxy A21s (2020) runs on the Exynos 850; launch prices were $555 and $215. By overall MobileRank rating, the OnePlus Ace 6 Ultra leads — 74/100 vs 29/100 (a 45-point difference). Key differences: the OnePlus Ace 6 Ultra has the bigger battery (8600 mAh vs 5000); the main camera is 50 MP vs 48 MP; the OnePlus Ace 6 Ultra is faster in AnTuTu (3,429,868 vs 234,339); the Samsung Galaxy A21s is noticeably lighter (192g vs 217g).
Profile comparison
Category scores
OnePlus Ace 6 Ultra
Samsung Galaxy A21s
What makes OnePlus Ace 6 Ultra better?
- Higher AnTuTu: 3429868 vs 234339
- Better Geekbench Single: 3293 vs 300
- Better Geekbench Multi: 10243 vs 836
- Bigger battery: 8600 vs 5000 mAh
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 165Hz vs 60Hz
- Higher performance (94/100 vs 16/100)
- Better camera (35/100 vs 30/100)
- Longer battery life (82/100 vs 52/100)
- Better display (94/100 vs 32/100)
What makes Samsung Galaxy A21s better?
- Lighter: 192g vs 217g
- Cheaper at launch: $215 vs $555
- Better portability (55/100 vs 43/100)
Comparison verdict
Comparing the OnePlus Ace 6 Ultra vs the Samsung Galaxy A21s, the OnePlus Ace 6 Ultra scores 45 points higher (74/100 vs 29/100). In the "performance" category, the OnePlus Ace 6 Ultra leads (94/100 vs 16/100). In the "battery" category, the OnePlus Ace 6 Ultra leads (82/100 vs 52/100). Value score: OnePlus Ace 6 Ultra — 66/100, Samsung Galaxy A21s — 16/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Samsung Galaxy A21s (94/100 vs 16/100). In the "display" category, the OnePlus Ace 6 Ultra significantly outperforms the Samsung Galaxy A21s (94/100 vs 32/100). In the "camera" category, the OnePlus Ace 6 Ultra is a bit better (35/100 vs 30/100). In the "battery" category, the OnePlus Ace 6 Ultra significantly outperforms the Samsung Galaxy A21s (82/100 vs 52/100). In the "portability" category, the Samsung Galaxy A21s is a bit better (55/100 vs 43/100).
Specs comparison
| Specification | OnePlus Ace 6 Ultra | Samsung Galaxy A21s | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Exynos 850 | |
| AnTuTu | 3429868 | 234339 | |
| Geekbench Single | 3293 | 300 | |
| Geekbench Multi | 10243 | 836 | |
| Display | 6.8" AMOLED | 6.5" IPS LCD | |
| Resolution | 1272x2772 | — | |
| Refresh rate | 165 Hz | 60 Hz | |
| Battery | 8600 mAh | 5000 mAh | |
| Charging | 120W | — | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 16 MP | 13 MP | |
| RAM | 12GB / 16GB | 3GB / 4GB / 6GB | |
| Storage | 256GB / 512GB / 1TB | 32GB / 64GB | |
| OS | Android 16 | — | |
| Brightness (peak) | 1800 nits | — | |
| NFC | yes | yes | |
| Protection | IP66 | — | |
| Dimensions | 162.5×77.5×8.5 mm | 163.7×75.3×8.9 mm | |
| Weight | 217 g | 192 g | |
| Launch price | $555 | $215 |
Camera comparison
OnePlus Ace 6 Ultra
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Samsung Galaxy A21s
- Main: 48MP
- Front: 13MP
Display comparison
OnePlus Ace 6 Ultra
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 165 Hz
Samsung Galaxy A21s
- 6.5" IPS LCD
- Refresh rate: 60 Hz
Battery and charging
OnePlus Ace 6 Ultra
- 8600 mAh
- Wired: 120W
- No wireless charging
Samsung Galaxy A21s
- 5000 mAh
- No wireless charging
Overall performance score
We compared OnePlus Ace 6 Ultra and Samsung Galaxy A21s, covering their specs and all relevant benchmarks.
OnePlus Ace 6 Ultra leads Samsung Galaxy A21s by 1363.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $340. Samsung Galaxy A21s was $340 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Samsung Galaxy A21s (94/100 vs 16/100).
display
In the "display" category, the OnePlus Ace 6 Ultra significantly outperforms the Samsung Galaxy A21s (94/100 vs 32/100).
camera
In the "camera" category, the OnePlus Ace 6 Ultra is a bit better (35/100 vs 30/100).
battery
In the "battery" category, the OnePlus Ace 6 Ultra significantly outperforms the Samsung Galaxy A21s (82/100 vs 52/100).
portability
In the "portability" category, the Samsung Galaxy A21s is a bit better (55/100 vs 43/100).
Frequently asked questions
Which is better: the OnePlus Ace 6 Ultra or the Samsung Galaxy A21s?
The OnePlus Ace 6 Ultra significantly outperforms the Samsung Galaxy A21s by 45 points (74/100 vs 29/100).
What is the rating of the OnePlus Ace 6 Ultra and the Samsung Galaxy A21s?
The OnePlus Ace 6 Ultra has a MobileRank rating of 74/100, the Samsung Galaxy A21s — 29/100.
Which has the better camera: the OnePlus Ace 6 Ultra or the Samsung Galaxy A21s?
The OnePlus Ace 6 Ultra leads on camera score (35/100 vs 30/100).
Which is more powerful: the OnePlus Ace 6 Ultra or the Samsung Galaxy A21s?
The OnePlus Ace 6 Ultra leads on performance (94/100 vs 16/100).
Should you choose the OnePlus Ace 6 Ultra over the Samsung Galaxy A21s?
The OnePlus Ace 6 Ultra is a better fit for gamers and power users, those who care about battery life.