Redmi K40 Pro vs Xiaomi 17 Ultra (China)
The Redmi K40 Pro (2021) runs on the Qualcomm Snapdragon 888, while the Xiaomi 17 Ultra (China) (2025) runs on the Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Xiaomi 17 Ultra (China) leads — 87/100 vs 56/100 (a 31-point difference). Key differences: the Xiaomi 17 Ultra (China) has the bigger battery (6800 mAh vs 4520); the main camera is 64 MP vs 50 MP; the Xiaomi 17 Ultra (China) is faster in AnTuTu (3,950,082 vs 1,135,878); the Redmi K40 Pro is noticeably lighter (196g vs 224g).
Profile comparison
Category scores
Redmi K40 Pro
Xiaomi 17 Ultra (China)
What makes Redmi K40 Pro better?
- Better main camera: 64MP vs 50MP
- Lighter: 196g vs 224g
- Better portability (64/100 vs 42/100)
What makes Xiaomi 17 Ultra (China) better?
- Higher AnTuTu: 3950082 vs 1135878
- Better Geekbench Single: 3639 vs 1500
- Better Geekbench Multi: 11047 vs 3537
- Bigger battery: 6800 vs 4520 mAh
- Faster charging: 90W vs 33W
- Higher performance (98/100 vs 64/100)
- Better camera (87/100 vs 44/100)
- Longer battery life (83/100 vs 36/100)
- Better display (81/100 vs 79/100)
Comparison verdict
Comparing the Redmi K40 Pro vs the Xiaomi 17 Ultra (China), the Xiaomi 17 Ultra (China) scores 31 points higher (87/100 vs 56/100). In the "performance" category, the Xiaomi 17 Ultra (China) leads (98/100 vs 64/100). In the "camera" category, the Xiaomi 17 Ultra (China) leads (87/100 vs 44/100). In the "battery" category, the Xiaomi 17 Ultra (China) leads (83/100 vs 36/100). In the "performance" category, the Xiaomi 17 Ultra (China) significantly outperforms the Redmi K40 Pro (98/100 vs 64/100). In the "display" category, the Xiaomi 17 Ultra (China) and the Redmi K40 Pro are nearly equal (81/100 vs 79/100). In the "camera" category, the Xiaomi 17 Ultra (China) significantly outperforms the Redmi K40 Pro (87/100 vs 44/100). In the "battery" category, the Xiaomi 17 Ultra (China) significantly outperforms the Redmi K40 Pro (83/100 vs 36/100). In the "portability" category, the Redmi K40 Pro notably outperforms the Xiaomi 17 Ultra (China) (64/100 vs 42/100).
Specs comparison
| Specification | Redmi K40 Pro | Xiaomi 17 Ultra (China) | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 888 | Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 1135878 | 3950082 | |
| Geekbench Single | 1500 | 3639 | |
| Geekbench Multi | 3537 | 11047 | |
| Display | 6.7" Super AMOLED | 6.9" LTPO AMOLED | |
| Resolution | 1080x2400 | 1200x2608 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 4520 mAh | 6800 mAh | |
| Charging | 33W | 90W | |
| Wireless charging | 0W | 50W | |
| Main camera | 64 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 20 MP | 50 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 512GB / 1TB | |
| OS | Android 11, MIUI 12 | Android 16 | |
| Brightness (peak) | 1300 nits | — | |
| NFC | yes | yes | |
| Protection | IP53 | IP68/IP69 | |
| Dimensions | 163.7×76.4×7.8 mm | 162.9×77.6×8.3 mm | |
| Weight | 196 g | 224 g | |
| Launch price | — | $892 |
Camera comparison
Redmi K40 Pro
- Main: 64MP f/1.9
- Ultrawide: 8MP
- Front: 20MP
Xiaomi 17 Ultra (China)
- Main: 50MP f/1.7
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 50MP
Display comparison
Redmi K40 Pro
- 6.7" Super AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Xiaomi 17 Ultra (China)
- 6.9" LTPO AMOLED
- Resolution: 1200x2608
- Refresh rate: 120 Hz
Battery and charging
Redmi K40 Pro
- 4520 mAh
- Wired: 33W
- No wireless charging
Xiaomi 17 Ultra (China)
- 6800 mAh
- Wired: 90W
- Wireless: 50W
Overall performance score
We compared Redmi K40 Pro and Xiaomi 17 Ultra (China), covering their specs and all relevant benchmarks.
Xiaomi 17 Ultra (China) leads Redmi K40 Pro by 71.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Redmi K40 Pro
Price unknownDetailed category analysis
performance
In the "performance" category, the Xiaomi 17 Ultra (China) significantly outperforms the Redmi K40 Pro (98/100 vs 64/100).
display
In the "display" category, the Xiaomi 17 Ultra (China) and the Redmi K40 Pro are nearly equal (81/100 vs 79/100).
camera
In the "camera" category, the Xiaomi 17 Ultra (China) significantly outperforms the Redmi K40 Pro (87/100 vs 44/100).
battery
In the "battery" category, the Xiaomi 17 Ultra (China) significantly outperforms the Redmi K40 Pro (83/100 vs 36/100).
portability
In the "portability" category, the Redmi K40 Pro notably outperforms the Xiaomi 17 Ultra (China) (64/100 vs 42/100).
Frequently asked questions
Which is better: the Redmi K40 Pro or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) significantly outperforms the Redmi K40 Pro by 31 points (87/100 vs 56/100).
What is the rating of the Redmi K40 Pro and the Xiaomi 17 Ultra (China)?
The Redmi K40 Pro has a MobileRank rating of 56/100, the Xiaomi 17 Ultra (China) — 87/100.
Which has the better camera: the Redmi K40 Pro or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) leads on camera score (87/100 vs 44/100).
Which is more powerful: the Redmi K40 Pro or the Xiaomi 17 Ultra (China)?
The Xiaomi 17 Ultra (China) leads on performance (98/100 vs 64/100).
Should you choose the Redmi K40 Pro over the Xiaomi 17 Ultra (China)?
The Redmi K40 Pro is a better fit for active users. 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.