Samsung Galaxy S21 vs Xiaomi 17 Pro
The Samsung Galaxy S21 (2021) runs on the Samsung Exynos 2100, while the Xiaomi 17 Pro (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $799 and $825. By overall MobileRank rating, the Xiaomi 17 Pro leads — 86/100 vs 55/100 (a 31-point difference). Key differences: the Xiaomi 17 Pro has the bigger battery (6300 mAh vs 4000); the main camera is 12 MP vs 50 MP; the Xiaomi 17 Pro is faster in AnTuTu (3,569,354 vs 1,081,778); the Samsung Galaxy S21 is noticeably lighter (169g vs 192g).
Profile comparison
Category scores
Samsung Galaxy S21
Xiaomi 17 Pro
What makes Samsung Galaxy S21 better?
- Lighter: 169g vs 192g
- Cheaper at launch: $799 vs $825
- Better portability (79/100 vs 64/100)
What makes Xiaomi 17 Pro better?
- Higher AnTuTu: 3569354 vs 1081778
- Better Geekbench Single: 3310 vs 1435
- Better Geekbench Multi: 10070 vs 3555
- Bigger battery: 6300 vs 4000 mAh
- Faster charging: 100W vs 25W
- Better main camera: 50MP vs 12MP
- Faster wireless charging: 50W vs 15W
- Higher performance (95/100 vs 63/100)
- Better camera (81/100 vs 42/100)
- Longer battery life (84/100 vs 31/100)
- Better display (85/100 vs 82/100)
Comparison verdict
Comparing the Samsung Galaxy S21 vs the Xiaomi 17 Pro, the Xiaomi 17 Pro scores 31 points higher (86/100 vs 55/100). In the "performance" category, the Xiaomi 17 Pro leads (95/100 vs 63/100). In the "camera" category, the Xiaomi 17 Pro leads (81/100 vs 42/100). In the "battery" category, the Xiaomi 17 Pro leads (84/100 vs 31/100). Value score: Samsung Galaxy S21 — 24/100, Xiaomi 17 Pro — 86/100; 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 Xiaomi 17 Pro significantly outperforms the Samsung Galaxy S21 (95/100 vs 63/100). In the "display" category, the Xiaomi 17 Pro and the Samsung Galaxy S21 are nearly equal (85/100 vs 82/100). In the "camera" category, the Xiaomi 17 Pro significantly outperforms the Samsung Galaxy S21 (81/100 vs 42/100). In the "battery" category, the Xiaomi 17 Pro significantly outperforms the Samsung Galaxy S21 (84/100 vs 31/100). In the "portability" category, the Samsung Galaxy S21 notably outperforms the Xiaomi 17 Pro (79/100 vs 64/100).
Specs comparison
| Specification | Samsung Galaxy S21 | Xiaomi 17 Pro | |
|---|---|---|---|
| Processor | Samsung Exynos 2100 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 1081778 | 3569354 | |
| Geekbench Single | 1435 | 3310 | |
| Geekbench Multi | 3555 | 10070 | |
| Display | 6.2" AMOLED | 6.3" LTPO AMOLED | |
| Resolution | 1080x2400 | 2656x1220 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 4000 mAh | 6300 mAh | |
| Charging | 25W | 100W | |
| Wireless charging | 15W | 50W | |
| Main camera | 12 MP | 50 MP | |
| Ultrawide | 12 MP | 50 MP | |
| Telephoto | 64 MP | 50 MP | |
| Front camera | 10 MP | 50 MP | |
| RAM | 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 11, One UI 3.1 | Android 16 / HyperOS 3 | |
| Brightness (peak) | 1300 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 161.5×75.6×7.8 mm | 151.1×71.8×8.0 mm | |
| Weight | 169 g | 192 g | |
| Launch price | $799 | $825 |
Camera comparison
Samsung Galaxy S21
- Main: 12MP f/1.8
- Ultrawide: 12MP
- Telephoto: 64MP
- Front: 10MP
Xiaomi 17 Pro
- Main: 50MP f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 50MP
Display comparison
Samsung Galaxy S21
- 6.2" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Xiaomi 17 Pro
- 6.3" LTPO AMOLED
- Resolution: 2656x1220
- Refresh rate: 120 Hz
Battery and charging
Samsung Galaxy S21
- 4000 mAh
- Wired: 25W
- Wireless: 15W
Xiaomi 17 Pro
- 6300 mAh
- Wired: 100W
- Wireless: 50W
Overall performance score
We compared Samsung Galaxy S21 and Xiaomi 17 Pro, covering their specs and all relevant benchmarks.
Xiaomi 17 Pro leads Samsung Galaxy S21 by 69.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $26. Samsung Galaxy S21 was $26 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Xiaomi 17 Pro significantly outperforms the Samsung Galaxy S21 (95/100 vs 63/100).
display
In the "display" category, the Xiaomi 17 Pro and the Samsung Galaxy S21 are nearly equal (85/100 vs 82/100).
camera
In the "camera" category, the Xiaomi 17 Pro significantly outperforms the Samsung Galaxy S21 (81/100 vs 42/100).
battery
In the "battery" category, the Xiaomi 17 Pro significantly outperforms the Samsung Galaxy S21 (84/100 vs 31/100).
portability
In the "portability" category, the Samsung Galaxy S21 notably outperforms the Xiaomi 17 Pro (79/100 vs 64/100).
Frequently asked questions
Which is better: the Samsung Galaxy S21 or the Xiaomi 17 Pro?
The Xiaomi 17 Pro significantly outperforms the Samsung Galaxy S21 by 31 points (86/100 vs 55/100).
What is the rating of the Samsung Galaxy S21 and the Xiaomi 17 Pro?
The Samsung Galaxy S21 has a MobileRank rating of 55/100, the Xiaomi 17 Pro — 86/100.
Which has the better camera: the Samsung Galaxy S21 or the Xiaomi 17 Pro?
The Xiaomi 17 Pro leads on camera score (81/100 vs 42/100).
Which is more powerful: the Samsung Galaxy S21 or the Xiaomi 17 Pro?
The Xiaomi 17 Pro leads on performance (95/100 vs 63/100).
Should you choose the Samsung Galaxy S21 over the Xiaomi 17 Pro?
The Samsung Galaxy S21 is a better fit for active users. The Xiaomi 17 Pro is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.