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 41/100 (a 45-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 (3,758,268 vs 502,844); the Redmi K20 is noticeably lighter (191g vs 215g).
Profile comparison
Category scores
Redmi K20
Vivo iQOO 15
What makes Redmi K20 better?
- Lighter: 191g vs 215g
- Cheaper at launch: $250 vs $599
- Better portability (56/100 vs 48/100)
What makes Vivo iQOO 15 better?
- Higher AnTuTu: 3758268 vs 502844
- Better Geekbench Single: 3013 vs 724
- Better Geekbench Multi: 9287 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)
Comparison verdict
Comparing the Redmi K20 vs the Vivo iQOO 15, the Vivo iQOO 15 scores 45 points higher (86/100 vs 41/100). 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 — 32/100, Vivo iQOO 15 — 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 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 is a bit better (56/100 vs 48/100).
Specs comparison
| Specification | Redmi K20 | Vivo iQOO 15 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 730 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 502844 | 3758268 | |
| Geekbench Single | 724 | 3013 | |
| Geekbench Multi | 1836 | 9287 | |
| 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 | yes | |
| Protection | — | IP68 | |
| Dimensions | 156.7×74.3×8.8 mm | 163.7×76.8×8.1 mm | |
| Weight | 191 g | 215 g | |
| Launch price | $250 | $599 |
Camera comparison
Redmi K20
- Main: 48MP f/1.75
- Ultrawide: 13MP
- Telephoto: 8MP
- Front: 20MP
Vivo iQOO 15
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Redmi K20
- 6.4" AMOLED
- Resolution: 2340x1080
- Refresh rate: 60 Hz
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
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
Overall performance score
We compared Redmi K20 and Vivo iQOO 15, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Redmi K20 by 86.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $349. Redmi K20 was $349 cheaper at launch.
Detailed category analysis
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 is a bit better (56/100 vs 48/100).
Frequently asked questions
Which is better: the Redmi K20 or the Vivo iQOO 15?
The Vivo iQOO 15 significantly outperforms the Redmi K20 by 45 points (86/100 vs 41/100).
What is the rating of the Redmi K20 and the Vivo iQOO 15?
The Redmi K20 has a MobileRank rating of 41/100, 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 Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.