Redmi K90 Ultra vs Vivo Y28 4G
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo Y28 4G (2024) runs on the MediaTek Helio G85. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 37/100 (a 36-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6000); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 348,562); the Redmi K90 Ultra has NFC for contactless payments, the Vivo Y28 4G doesn't; the Vivo Y28 4G is noticeably lighter (199g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
Vivo Y28 4G
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 348562
- Better Geekbench Single: 3013 vs 419
- Better Geekbench Multi: 9287 vs 1461
- Bigger battery: 8550 vs 6000 mAh
- Faster charging: 100W vs 44W
- Higher refresh rate: 165Hz vs 90Hz
- Higher performance (92/100 vs 29/100)
- Better camera (37/100 vs 30/100)
- Longer battery life (78/100 vs 56/100)
- Better display (94/100 vs 43/100)
What makes Vivo Y28 4G better?
- Lighter: 199g vs 227g
- Better portability (60/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Vivo Y28 4G, the Redmi K90 Ultra scores 36 points higher (73/100 vs 37/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 29/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 56/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo Y28 4G (92/100 vs 29/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Vivo Y28 4G (94/100 vs 43/100). In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 30/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Vivo Y28 4G (78/100 vs 56/100). In the "portability" category, the Vivo Y28 4G notably outperforms the Redmi K90 Ultra (60/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | Vivo Y28 4G | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Helio G85 | |
| AnTuTu | 3233695 | 348562 | |
| Geekbench Single | 3013 | 419 | |
| Geekbench Multi | 9287 | 1461 | |
| Display | 6.8" AMOLED | 6.7" IPS LCD | |
| Resolution | 1280x2772 | 720x1608 | |
| Refresh rate | 165 Hz | 90 Hz | |
| Battery | 8550 mAh | 6000 mAh | |
| Charging | 100W | 44W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 8 MP | |
| RAM | 12GB / 16GB | 4GB / 6GB / 8GB | |
| Storage | 256GB / 512GB | 128GB / 256GB | |
| OS | Android 16 | Android 14, Funtouch 14 | |
| Brightness (peak) | 3500 nits | 1000 nits | |
| NFC | yes | no | |
| Protection | IP68/IP69 | IP64 | |
| Dimensions | 162.9×77.9×8.2 mm | 165.7×76.0×8.0 mm | |
| Weight | 227 g | 199 g | |
| Launch price | $420 | — |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo Y28 4G
- Main: 50MP f/1.8
- Front: 8MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo Y28 4G
- 6.7" IPS LCD
- Resolution: 720x1608
- Refresh rate: 90 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo Y28 4G
- 6000 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Redmi K90 Ultra and Vivo Y28 4G, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo Y28 4G by 827.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo Y28 4G
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo Y28 4G (92/100 vs 29/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Vivo Y28 4G (94/100 vs 43/100).
camera
In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 30/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Vivo Y28 4G (78/100 vs 56/100).
portability
In the "portability" category, the Vivo Y28 4G notably outperforms the Redmi K90 Ultra (60/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Vivo Y28 4G?
The Redmi K90 Ultra significantly outperforms the Vivo Y28 4G by 36 points (73/100 vs 37/100).
What is the rating of the Redmi K90 Ultra and the Vivo Y28 4G?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo Y28 4G — 37/100.
Which has the better camera: the Redmi K90 Ultra or the Vivo Y28 4G?
The Redmi K90 Ultra leads on camera score (37/100 vs 30/100).
Which is more powerful: the Redmi K90 Ultra or the Vivo Y28 4G?
The Redmi K90 Ultra leads on performance (92/100 vs 29/100).
Should you choose the Redmi K90 Ultra over the Vivo Y28 4G?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.