Redmi K90 vs Vivo Y400 4G
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo Y400 4G (2025) runs on the Qualcomm Snapdragon 685; launch prices were $401 and $200. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 44/100 (a 32-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 6000); the Redmi K90 is faster in AnTuTu (3,077,585 vs 476,175).
Profile comparison
Category scores
Redmi K90
Vivo Y400 4G
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 476175
- Better Geekbench Single: 3013 vs 466
- Better Geekbench Multi: 9287 vs 1396
- Bigger battery: 7100 vs 6000 mAh
- Faster charging: 100W vs 44W
- Higher performance (91/100 vs 34/100)
- Better camera (58/100 vs 30/100)
- Longer battery life (72/100 vs 56/100)
- Better display (82/100 vs 79/100)
What makes Vivo Y400 4G better?
- Lighter: 197g vs 206g
- Cheaper at launch: $200 vs $401
- Better portability (62/100 vs 55/100)
Comparison verdict
Comparing the Redmi K90 vs the Vivo Y400 4G, the Redmi K90 scores 32 points higher (76/100 vs 44/100). In the "performance" category, the Redmi K90 leads (91/100 vs 34/100). In the "camera" category, the Redmi K90 leads (58/100 vs 30/100). In the "battery" category, the Redmi K90 leads (72/100 vs 56/100). Value score: Redmi K90 — 80/100, Vivo Y400 4G — 48/100; 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 Redmi K90 significantly outperforms the Vivo Y400 4G (91/100 vs 34/100). In the "display" category, the Redmi K90 and the Vivo Y400 4G are nearly equal (82/100 vs 79/100). In the "camera" category, the Redmi K90 notably outperforms the Vivo Y400 4G (58/100 vs 30/100). In the "battery" category, the Redmi K90 notably outperforms the Vivo Y400 4G (72/100 vs 56/100). In the "portability" category, the Vivo Y400 4G is a bit better (62/100 vs 55/100).
Specs comparison
| Specification | Redmi K90 | Vivo Y400 4G | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 685 | |
| AnTuTu | 3077585 | 476175 | |
| Geekbench Single | 3013 | 466 | |
| Geekbench Multi | 9287 | 1396 | |
| Display | 6.6" AMOLED | 6.7" AMOLED | |
| Resolution | 2510x1156 | 1080x2400 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 7100 mAh | 6000 mAh | |
| Charging | 100W | 44W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 20 MP | 8 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB | 128GB / 256GB | |
| OS | Android 16 | Android 15 | |
| Brightness (peak) | 3500 nits | 1800 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP69 | |
| Dimensions | 157.5×75.3×8.0 mm | 162.3×75.3×7.9 mm | |
| Weight | 206 g | 197 g | |
| Launch price | $401 | $200 |
Camera comparison
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Vivo Y400 4G
- Main: 50MP f/1.8
- Front: 8MP
Display comparison
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Vivo Y400 4G
- 6.7" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Battery and charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Vivo Y400 4G
- 6000 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Redmi K90 and Vivo Y400 4G, covering their specs and all relevant benchmarks.
Redmi K90 leads Vivo Y400 4G by 546.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $201. Vivo Y400 4G was $201 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 significantly outperforms the Vivo Y400 4G (91/100 vs 34/100).
display
In the "display" category, the Redmi K90 and the Vivo Y400 4G are nearly equal (82/100 vs 79/100).
camera
In the "camera" category, the Redmi K90 notably outperforms the Vivo Y400 4G (58/100 vs 30/100).
battery
In the "battery" category, the Redmi K90 notably outperforms the Vivo Y400 4G (72/100 vs 56/100).
portability
In the "portability" category, the Vivo Y400 4G is a bit better (62/100 vs 55/100).
Frequently asked questions
Which is better: the Redmi K90 or the Vivo Y400 4G?
The Redmi K90 significantly outperforms the Vivo Y400 4G by 32 points (76/100 vs 44/100).
What is the rating of the Redmi K90 and the Vivo Y400 4G?
The Redmi K90 has a MobileRank rating of 76/100, the Vivo Y400 4G — 44/100.
Which has the better camera: the Redmi K90 or the Vivo Y400 4G?
The Redmi K90 leads on camera score (58/100 vs 30/100).
Which is more powerful: the Redmi K90 or the Vivo Y400 4G?
The Redmi K90 leads on performance (91/100 vs 34/100).
Should you choose the Redmi K90 over the Vivo Y400 4G?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.