Redmi K100 Pro vs Vivo S21 Pro
The Redmi K100 Pro (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo S21 Pro (2024) runs on the MediaTek Dimensity 9300+. By overall MobileRank rating, the Redmi K100 Pro leads — 88/100 vs 63/100 (a 25-point difference). Key differences: the Redmi K100 Pro has the bigger battery (9000 mAh vs 5500); the main camera is 200 MP vs 50 MP; the Redmi K100 Pro is faster in AnTuTu (3,942,923 vs 2,351,914).
Redmi K100 Pro
Vivo S21 Pro
- Higher AnTuTu: 3942923 vs 2351914
- Better Geekbench Single: 3640 vs 2250
- Better Geekbench Multi: 11033 vs 7315
- Bigger battery: 9000 vs 5500 mAh
- Faster charging: 100W vs 90W
- Better main camera: 200MP vs 50MP
- Higher refresh rate: 2560Hz vs 120Hz
- Higher performance (92/100 vs 46/100)
- Better camera (90/100 vs 78/100)
- Longer battery life (89/100 vs 60/100)
- Overall rating 63/100
Comparing the Redmi K100 Pro vs the Vivo S21 Pro, the Redmi K100 Pro scores 25 points higher (88/100 vs 63/100). In the "performance" category, the Redmi K100 Pro leads (92/100 vs 46/100). In the "camera" category, the Redmi K100 Pro leads (90/100 vs 78/100). In the "battery" category, the Redmi K100 Pro leads (89/100 vs 60/100). In the "performance" category, the Redmi K100 Pro significantly outperforms the Vivo S21 Pro (92/100 vs 46/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Redmi K100 Pro is a bit better (90/100 vs 78/100). In the "battery" category, the Redmi K100 Pro notably outperforms the Vivo S21 Pro (89/100 vs 60/100). In the "design" category, both devices are on the same level — 50/100. In the "value for money" category, both devices are on the same level — 55/100.
| Specification | Redmi K100 Pro | Vivo S21 Pro | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | MediaTek Dimensity 9300+ | |
| AnTuTu | 3942923 | 2351914 | |
| Geekbench Single | 3640 | 2250 | |
| Geekbench Multi | 11033 | 7315 | |
| Display | 6.9" AMOLED | 6.7" AMOLED | |
| Resolution | 1200x2608 | 1260x2800 | |
| Refresh rate | 2560 Hz | 120 Hz | |
| Battery | 9000 mAh | 5500 mAh | |
| Charging | 100W | 90W | |
| Wireless charging | 50W | 0W | |
| Main camera | 200 MP | 50 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 32 MP | 50 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 256GB / 512GB / 1TB | 512GB | |
| OS | Android 16, HyperOS 3 | Android 15, OriginOS 5 | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Weight | — | — | |
| Price | — | — |
Redmi K100 Pro
- Main: 200MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo S21 Pro
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 50MP
Redmi K100 Pro
- 6.9" AMOLED
- Resolution: 1200x2608
- Refresh rate: 2560 Hz
Vivo S21 Pro
- 6.7" AMOLED
- Resolution: 1260x2800
- Refresh rate: 120 Hz
Redmi K100 Pro
- 9000 mAh
- Wired: 100W
- Wireless: 50W
Vivo S21 Pro
- 5500 mAh
- Wired: 90W
- No wireless charging
We compared Redmi K100 Pro and Vivo S21 Pro, covering their specs and all relevant benchmarks.
Redmi K100 Pro leads Vivo S21 Pro by 67.6% in our overall performance rating.
performance
In the "performance" category, the Redmi K100 Pro significantly outperforms the Vivo S21 Pro (92/100 vs 46/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Redmi K100 Pro is a bit better (90/100 vs 78/100).
battery
In the "battery" category, the Redmi K100 Pro notably outperforms the Vivo S21 Pro (89/100 vs 60/100).
design
In the "design" category, both devices are on the same level — 50/100.
value for money
In the "value for money" category, both devices are on the same level — 55/100.
Which is better: the Redmi K100 Pro or the Vivo S21 Pro?
The Redmi K100 Pro significantly outperforms the Vivo S21 Pro by 25 points (88/100 vs 63/100).
What is the rating of the Redmi K100 Pro and the Vivo S21 Pro?
The Redmi K100 Pro has a MobileRank rating of 88/100, the Vivo S21 Pro — 63/100.
Which has the better camera: the Redmi K100 Pro or the Vivo S21 Pro?
The Redmi K100 Pro leads on camera score (90/100 vs 78/100).
Which is more powerful: the Redmi K100 Pro or the Vivo S21 Pro?
The Redmi K100 Pro leads on performance (92/100 vs 46/100).
Should you choose the Redmi K100 Pro over the Vivo S21 Pro?
The Redmi K100 Pro is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life. The Vivo S21 Pro is a better fit for everyday use.