Redmi K90 vs Vivo Y77 (China)
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo Y77 (China) (2022) runs on the MediaTek Dimensity 930. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 45/100 (a 31-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 4500); the Redmi K90 is faster in AnTuTu (3,077,585 vs 593,307); the Redmi K90 has NFC for contactless payments, the Vivo Y77 (China) doesn't.
Profile comparison
Category scores
Redmi K90
Vivo Y77 (China)
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 593307
- Better Geekbench Single: 3013 vs 915
- Better Geekbench Multi: 9287 vs 2299
- Bigger battery: 7100 vs 4500 mAh
- Faster charging: 100W vs 80W
- Higher performance (91/100 vs 47/100)
- Better camera (58/100 vs 30/100)
- Longer battery life (72/100 vs 45/100)
- Better display (82/100 vs 66/100)
What makes Vivo Y77 (China) better?
- Lighter: 194g vs 206g
- Better portability (56/100 vs 55/100)
Comparison verdict
Comparing the Redmi K90 vs the Vivo Y77 (China), the Redmi K90 scores 31 points higher (76/100 vs 45/100). In the "performance" category, the Redmi K90 leads (91/100 vs 47/100). In the "camera" category, the Redmi K90 leads (58/100 vs 30/100). In the "battery" category, the Redmi K90 leads (72/100 vs 45/100). In the "performance" category, the Redmi K90 significantly outperforms the Vivo Y77 (China) (91/100 vs 47/100). In the "display" category, the Redmi K90 notably outperforms the Vivo Y77 (China) (82/100 vs 66/100). In the "camera" category, the Redmi K90 notably outperforms the Vivo Y77 (China) (58/100 vs 30/100). In the "battery" category, the Redmi K90 notably outperforms the Vivo Y77 (China) (72/100 vs 45/100). In the "portability" category, the Vivo Y77 (China) and the Redmi K90 are nearly equal (56/100 vs 55/100).
Specs comparison
| Specification | Redmi K90 | Vivo Y77 (China) | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Dimensity 930 | |
| AnTuTu | 3077585 | 593307 | |
| Geekbench Single | 3013 | 915 | |
| Geekbench Multi | 9287 | 2299 | |
| Display | 6.6" AMOLED | 6.6" IPS LCD | |
| Resolution | 2510x1156 | 1080x2388 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 7100 mAh | 4500 mAh | |
| Charging | 100W | 80W | |
| 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 | 6GB / 8GB / 12GB | |
| Storage | 256GB / 512GB | 128GB / 256GB | |
| OS | Android 16 | Android 12, Origin OS Ocean | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 157.5×75.3×8.0 mm | 164.2×75.8×8.6 mm | |
| Weight | 206 g | 194 g | |
| Launch price | $401 | — |
Camera comparison
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Vivo Y77 (China)
- Main: 50MP f/1.8
- Front: 8MP
Display comparison
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Vivo Y77 (China)
- 6.6" IPS LCD
- Resolution: 1080x2388
- Refresh rate: 120 Hz
Battery and charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Vivo Y77 (China)
- 4500 mAh
- Wired: 80W
- No wireless charging
Overall performance score
We compared Redmi K90 and Vivo Y77 (China), covering their specs and all relevant benchmarks.
Redmi K90 leads Vivo Y77 (China) by 418.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo Y77 (China)
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 significantly outperforms the Vivo Y77 (China) (91/100 vs 47/100).
display
In the "display" category, the Redmi K90 notably outperforms the Vivo Y77 (China) (82/100 vs 66/100).
camera
In the "camera" category, the Redmi K90 notably outperforms the Vivo Y77 (China) (58/100 vs 30/100).
battery
In the "battery" category, the Redmi K90 notably outperforms the Vivo Y77 (China) (72/100 vs 45/100).
portability
In the "portability" category, the Vivo Y77 (China) and the Redmi K90 are nearly equal (56/100 vs 55/100).
Frequently asked questions
Which is better: the Redmi K90 or the Vivo Y77 (China)?
The Redmi K90 significantly outperforms the Vivo Y77 (China) by 31 points (76/100 vs 45/100).
What is the rating of the Redmi K90 and the Vivo Y77 (China)?
The Redmi K90 has a MobileRank rating of 76/100, the Vivo Y77 (China) — 45/100.
Which has the better camera: the Redmi K90 or the Vivo Y77 (China)?
The Redmi K90 leads on camera score (58/100 vs 30/100).
Which is more powerful: the Redmi K90 or the Vivo Y77 (China)?
The Redmi K90 leads on performance (91/100 vs 47/100).
Should you choose the Redmi K90 over the Vivo Y77 (China)?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.