Redmi K20 vs Vivo iQOO 15
The Redmi K20 (2019) runs on the Qualcomm Snapdragon 730, while the Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $250 and $599. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 42/100 (a 44-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 4000); the main camera is 48 MP vs 50 MP; the Vivo iQOO 15 is faster in AnTuTu (3,740,528 vs 496,392); the Redmi K20 is noticeably lighter (191g vs 215g).
Redmi K20
Vivo iQOO 15
- Lighter: 191g vs 215g
- Cheaper at launch: $250 vs $599
- Better portability (68/100 vs 48/100)
- Higher AnTuTu: 3740528 vs 496392
- Better Geekbench Single: 3041 vs 724
- Better Geekbench Multi: 9494 vs 1836
- Bigger battery: 7000 vs 4000 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 144Hz vs 60Hz
- Higher performance (94/100 vs 41/100)
- Better camera (78/100 vs 41/100)
- Longer battery life (85/100 vs 27/100)
- Better display (99/100 vs 56/100)
Comparing the Redmi K20 vs the Vivo iQOO 15, the Vivo iQOO 15 scores 44 points higher (86/100 vs 42/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 41/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 41/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 27/100). Value score: Redmi K20 — 36/100, Vivo iQOO 15 — 84/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo iQOO 15 significantly outperforms the Redmi K20 (94/100 vs 41/100). In the "display" category, the Vivo iQOO 15 significantly outperforms the Redmi K20 (99/100 vs 56/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Redmi K20 (78/100 vs 41/100). In the "battery" category, the Vivo iQOO 15 significantly outperforms the Redmi K20 (85/100 vs 27/100). In the "portability" category, the Redmi K20 notably outperforms the Vivo iQOO 15 (68/100 vs 48/100).
| Specification | Redmi K20 | Vivo iQOO 15 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 730 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 496392 | 3740528 | |
| Geekbench Single | 724 | 3041 | |
| Geekbench Multi | 1836 | 9494 | |
| Display | 6.4" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 2340x1080 | 1440x3168 | |
| Refresh rate | 60 Hz | 144 Hz | |
| Battery | 4000 mAh | 7000 mAh | |
| Charging | 18W | 100W | |
| Wireless charging | — | 40W | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 13 MP | 50 MP | |
| Telephoto | 8 MP | 50 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB | |
| Storage | 64GB / 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 9 | Android 16 | |
| Brightness (peak) | — | 6000 nits | |
| NFC | — | yes | |
| Protection | — | IP68 | |
| Dimensions | — | 163.7×76.8×8.1 mm | |
| Weight | 191 g | 215 g | |
| Launch price | $250 | $599 |
Redmi K20
- Main: 48MP f/f/1.75
- Ultrawide: 13MP
- Telephoto: 8MP
- Front: 20MP
Vivo iQOO 15
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Redmi K20
- 6.4" AMOLED
- Resolution: 2340x1080
- Refresh rate: 60 Hz
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Redmi K20
- 4000 mAh
- Wired: 18W
- Wireless charging: no data
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
We compared Redmi K20 and Vivo iQOO 15, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Redmi K20 by 86.7% in our overall performance rating.
Launch price difference: $349. Redmi K20 was $349 cheaper at launch.
performance
In the "performance" category, the Vivo iQOO 15 significantly outperforms the Redmi K20 (94/100 vs 41/100).
display
In the "display" category, the Vivo iQOO 15 significantly outperforms the Redmi K20 (99/100 vs 56/100).
camera
In the "camera" category, the Vivo iQOO 15 significantly outperforms the Redmi K20 (78/100 vs 41/100).
battery
In the "battery" category, the Vivo iQOO 15 significantly outperforms the Redmi K20 (85/100 vs 27/100).
portability
In the "portability" category, the Redmi K20 notably outperforms the Vivo iQOO 15 (68/100 vs 48/100).
Which is better: the Redmi K20 or the Vivo iQOO 15?
The Vivo iQOO 15 significantly outperforms the Redmi K20 by 44 points (86/100 vs 42/100).
What is the rating of the Redmi K20 and the Vivo iQOO 15?
The Redmi K20 has a MobileRank rating of 42/100, the Vivo iQOO 15 — 86/100.
Which has the better camera: the Redmi K20 or the Vivo iQOO 15?
The Vivo iQOO 15 leads on camera score (78/100 vs 41/100).
Which is more powerful: the Redmi K20 or the Vivo iQOO 15?
The Vivo iQOO 15 leads on performance (94/100 vs 41/100).
Should you choose the Redmi K20 over the Vivo iQOO 15?
The Redmi K20 is a better fit for everyday use. The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.