Redmi K40 Pro vs Vivo iQOO 15
The Redmi K40 Pro (2021) runs on the Qualcomm Snapdragon 888, while the Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 56/100 (a 30-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 4520); the main camera is 64 MP vs 50 MP; the Vivo iQOO 15 is faster in AnTuTu (3,740,528 vs 1,119,714); the Redmi K40 Pro is noticeably lighter (196g vs 215g).
Redmi K40 Pro
Vivo iQOO 15
- Better main camera: 64MP vs 50MP
- Lighter: 196g vs 215g
- Better portability (64/100 vs 48/100)
- Higher AnTuTu: 3740528 vs 1119714
- Better Geekbench Single: 3041 vs 1488
- Better Geekbench Multi: 9494 vs 3373
- Bigger battery: 7000 vs 4520 mAh
- Faster charging: 100W vs 33W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (94/100 vs 63/100)
- Better camera (78/100 vs 44/100)
- Longer battery life (85/100 vs 36/100)
- Better display (99/100 vs 79/100)
Comparing the Redmi K40 Pro vs the Vivo iQOO 15, the Vivo iQOO 15 scores 30 points higher (86/100 vs 56/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 63/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 44/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 36/100). In the "performance" category, the Vivo iQOO 15 significantly outperforms the Redmi K40 Pro (94/100 vs 63/100). In the "display" category, the Vivo iQOO 15 notably outperforms the Redmi K40 Pro (99/100 vs 79/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Redmi K40 Pro (78/100 vs 44/100). In the "battery" category, the Vivo iQOO 15 significantly outperforms the Redmi K40 Pro (85/100 vs 36/100). In the "portability" category, the Redmi K40 Pro notably outperforms the Vivo iQOO 15 (64/100 vs 48/100).
| Specification | Redmi K40 Pro | Vivo iQOO 15 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 888 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1119714 | 3740528 | |
| Geekbench Single | 1488 | 3041 | |
| Geekbench Multi | 3373 | 9494 | |
| Display | 6.7" Super AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 1080x2400 | 1440x3168 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 4520 mAh | 7000 mAh | |
| Charging | 33W | 100W | |
| Wireless charging | 0W | 40W | |
| Main camera | 64 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 11, MIUI 12 | Android 16 | |
| Brightness (peak) | 1300 nits | 6000 nits | |
| NFC | yes | yes | |
| Protection | IP53 | IP68 | |
| Dimensions | 163.7×76.4×7.8 mm | 163.7×76.8×8.1 mm | |
| Weight | 196 g | 215 g | |
| Launch price | — | $599 |
Redmi K40 Pro
- Main: 64MP f/f/1.9
- Ultrawide: 8MP
- Front: 20MP
Vivo iQOO 15
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Redmi K40 Pro
- 6.7" Super AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Redmi K40 Pro
- 4520 mAh
- Wired: 33W
- No wireless charging
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
We compared Redmi K40 Pro and Vivo iQOO 15, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Redmi K40 Pro by 70.1% in our overall performance rating.
Redmi K40 Pro
Price unknownperformance
In the "performance" category, the Vivo iQOO 15 significantly outperforms the Redmi K40 Pro (94/100 vs 63/100).
display
In the "display" category, the Vivo iQOO 15 notably outperforms the Redmi K40 Pro (99/100 vs 79/100).
camera
In the "camera" category, the Vivo iQOO 15 significantly outperforms the Redmi K40 Pro (78/100 vs 44/100).
battery
In the "battery" category, the Vivo iQOO 15 significantly outperforms the Redmi K40 Pro (85/100 vs 36/100).
portability
In the "portability" category, the Redmi K40 Pro notably outperforms the Vivo iQOO 15 (64/100 vs 48/100).
Which is better: the Redmi K40 Pro or the Vivo iQOO 15?
The Vivo iQOO 15 significantly outperforms the Redmi K40 Pro by 30 points (86/100 vs 56/100).
What is the rating of the Redmi K40 Pro and the Vivo iQOO 15?
The Redmi K40 Pro has a MobileRank rating of 56/100, the Vivo iQOO 15 — 86/100.
Which has the better camera: the Redmi K40 Pro or the Vivo iQOO 15?
The Vivo iQOO 15 leads on camera score (78/100 vs 44/100).
Which is more powerful: the Redmi K40 Pro or the Vivo iQOO 15?
The Vivo iQOO 15 leads on performance (94/100 vs 63/100).
Should you choose the Redmi K40 Pro over the Vivo iQOO 15?
The Redmi K40 Pro is a better fit for active users. The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.