Samsung Galaxy A21s vs Xiaomi 17 Ultra (China)
The Samsung Galaxy A21s (2020) runs on the Exynos 850, while the Xiaomi 17 Ultra (China) (2025) runs on the Snapdragon 8 Elite Gen 5; launch prices were $215 and $892. By overall MobileRank rating, the Xiaomi 17 Ultra (China) leads — 87/100 vs 29/100 (a 58-point difference). Key differences: the Xiaomi 17 Ultra (China) has the bigger battery (6800 mAh vs 5000); the main camera is 48 MP vs 50 MP; the Xiaomi 17 Ultra (China) is faster in AnTuTu (3,942,923 vs 234,339); the Samsung Galaxy A21s is noticeably lighter (192g vs 224g).
Samsung Galaxy A21s
Xiaomi 17 Ultra (China)
- Lighter: 192g vs 224g
- Cheaper at launch: $215 vs $892
- Better portability (55/100 vs 42/100)
- Higher AnTuTu: 3942923 vs 234339
- Better Geekbench Single: 3640 vs 300
- Better Geekbench Multi: 11033 vs 836
- Bigger battery: 6800 vs 5000 mAh
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 120Hz vs 60Hz
- Higher performance (98/100 vs 16/100)
- Better camera (87/100 vs 30/100)
- Longer battery life (83/100 vs 52/100)
- Better display (81/100 vs 32/100)
Comparing the Samsung Galaxy A21s vs the Xiaomi 17 Ultra (China), the Xiaomi 17 Ultra (China) scores 58 points higher (87/100 vs 29/100). In the "performance" category, the Xiaomi 17 Ultra (China) leads (98/100 vs 16/100). In the "camera" category, the Xiaomi 17 Ultra (China) leads (87/100 vs 30/100). In the "battery" category, the Xiaomi 17 Ultra (China) leads (83/100 vs 52/100). Value score: Samsung Galaxy A21s — 18/100, Xiaomi 17 Ultra (China) — 86/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Xiaomi 17 Ultra (China) significantly outperforms the Samsung Galaxy A21s (98/100 vs 16/100). In the "display" category, the Xiaomi 17 Ultra (China) significantly outperforms the Samsung Galaxy A21s (81/100 vs 32/100). In the "camera" category, the Xiaomi 17 Ultra (China) significantly outperforms the Samsung Galaxy A21s (87/100 vs 30/100). In the "battery" category, the Xiaomi 17 Ultra (China) significantly outperforms the Samsung Galaxy A21s (83/100 vs 52/100). In the "portability" category, the Samsung Galaxy A21s is a bit better (55/100 vs 42/100).
| Specification | Samsung Galaxy A21s | Xiaomi 17 Ultra (China) | |
|---|---|---|---|
| Processor | Exynos 850 | Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 234339 | 3942923 | |
| Geekbench Single | 300 | 3640 | |
| Geekbench Multi | 836 | 11033 | |
| Display | 6.5" IPS LCD | 6.9" LTPO AMOLED | |
| Resolution | — | 1200x2608 | |
| Refresh rate | 60 Hz | 120 Hz | |
| Battery | 5000 mAh | 6800 mAh | |
| Charging | — | 90W | |
| Wireless charging | 0W | 50W | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 13 MP | 50 MP | |
| RAM | 3GB / 4GB / 6GB | 12GB / 16GB | |
| Storage | 32GB / 64GB | 512GB / 1TB | |
| OS | — | Android 16 | |
| NFC | yes | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 163.7×75.3×8.9 mm | 162.9×77.6×8.3 mm | |
| Weight | 192 g | 224 g | |
| Launch price | $215 | $892 |
Samsung Galaxy A21s
- Main: 48MP
- Front: 13MP
Xiaomi 17 Ultra (China)
- Main: 50MP f/f/1.7
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 50MP
Samsung Galaxy A21s
- 6.5" IPS LCD
- Refresh rate: 60 Hz
Xiaomi 17 Ultra (China)
- 6.9" LTPO AMOLED
- Resolution: 1200x2608
- Refresh rate: 120 Hz
Samsung Galaxy A21s
- 5000 mAh
- No wireless charging
Xiaomi 17 Ultra (China)
- 6800 mAh
- Wired: 90W
- Wireless: 50W
We compared Samsung Galaxy A21s and Xiaomi 17 Ultra (China), covering their specs and all relevant benchmarks.
Xiaomi 17 Ultra (China) leads Samsung Galaxy A21s by 94.1% in our overall performance rating.
Launch price difference: $677. Samsung Galaxy A21s was $677 cheaper at launch.
performance
In the "performance" category, the Xiaomi 17 Ultra (China) significantly outperforms the Samsung Galaxy A21s (98/100 vs 16/100).
display
In the "display" category, the Xiaomi 17 Ultra (China) significantly outperforms the Samsung Galaxy A21s (81/100 vs 32/100).
camera
In the "camera" category, the Xiaomi 17 Ultra (China) significantly outperforms the Samsung Galaxy A21s (87/100 vs 30/100).
battery
In the "battery" category, the Xiaomi 17 Ultra (China) significantly outperforms the Samsung Galaxy A21s (83/100 vs 52/100).
portability
In the "portability" category, the Samsung Galaxy A21s is a bit better (55/100 vs 42/100).
Which is better: the Samsung Galaxy A21s or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) significantly outperforms the Samsung Galaxy A21s by 58 points (87/100 vs 29/100).
What is the rating of the Samsung Galaxy A21s and the Xiaomi 17 Ultra (China)?
The Samsung Galaxy A21s has a MobileRank rating of 29/100, the Xiaomi 17 Ultra (China) — 87/100.
Which has the better camera: the Samsung Galaxy A21s or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) leads on camera score (87/100 vs 30/100).
Which is more powerful: the Samsung Galaxy A21s or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) leads on performance (98/100 vs 16/100).
Should you choose the Samsung Galaxy A21s over the Xiaomi 17 Ultra (China)?
The Samsung Galaxy A21s is a better fit for everyday use. The Xiaomi 17 Ultra (China) is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.