Redmi K90 vs Vivo T4 Ultra
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo T4 Ultra (2025) runs on the MediaTek Dimensity 9300+; launch prices were $401 and $449. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 75/100 (a 1-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 5500); the Redmi K90 is faster in AnTuTu (3,077,585 vs 2,286,808).
Profile comparison
Category scores
Redmi K90
Vivo T4 Ultra
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 2286808
- Better Geekbench Single: 3013 vs 2249
- Better Geekbench Multi: 9287 vs 7352
- Bigger battery: 7100 vs 5500 mAh
- Faster charging: 100W vs 90W
- Cheaper at launch: $401 vs $449
- Higher performance (91/100 vs 83/100)
What makes Vivo T4 Ultra better?
- Lighter: 192g vs 206g
- Better camera (61/100 vs 58/100)
- Longer battery life (75/100 vs 72/100)
- Better display (85/100 vs 82/100)
- Better portability (68/100 vs 55/100)
Comparison verdict
Comparing the Redmi K90 vs the Vivo T4 Ultra, the Redmi K90 scores 1 points higher (76/100 vs 75/100). Value score: Redmi K90 — 80/100, Vivo T4 Ultra — 74/100; 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 is a bit better (91/100 vs 83/100). In the "display" category, the Vivo T4 Ultra and the Redmi K90 are nearly equal (85/100 vs 82/100). In the "camera" category, the Vivo T4 Ultra and the Redmi K90 are nearly equal (61/100 vs 58/100). In the "battery" category, the Vivo T4 Ultra and the Redmi K90 are nearly equal (75/100 vs 72/100). In the "portability" category, the Vivo T4 Ultra is a bit better (68/100 vs 55/100).
Specs comparison
| Specification | Redmi K90 | Vivo T4 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Dimensity 9300+ | |
| AnTuTu | 3077585 | 2286808 | |
| Geekbench Single | 3013 | 2249 | |
| Geekbench Multi | 9287 | 7352 | |
| Display | 6.6" AMOLED | 6.7" AMOLED | |
| Resolution | 2510x1156 | 2800x1260 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 7100 mAh | 5500 mAh | |
| Charging | 100W | 90W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB | 256GB / 512GB | |
| OS | Android 16 | Android 15 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | — | |
| Protection | IP68 | — | |
| Dimensions | 157.5×75.3×8.0 mm | — | |
| Weight | 206 g | 192 g | |
| Launch price | $401 | $449 |
Camera comparison
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Vivo T4 Ultra
- Main: 50MP f/1.88
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Vivo T4 Ultra
- 6.7" AMOLED
- Resolution: 2800x1260
- Refresh rate: 120 Hz
Battery and charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Vivo T4 Ultra
- 5500 mAh
- Wired: 90W
- Wireless charging: no data
Overall performance score
We compared Redmi K90 and Vivo T4 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 leads Vivo T4 Ultra by 34.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $48. Redmi K90 was $48 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 is a bit better (91/100 vs 83/100).
display
In the "display" category, the Vivo T4 Ultra and the Redmi K90 are nearly equal (85/100 vs 82/100).
camera
In the "camera" category, the Vivo T4 Ultra and the Redmi K90 are nearly equal (61/100 vs 58/100).
battery
In the "battery" category, the Vivo T4 Ultra and the Redmi K90 are nearly equal (75/100 vs 72/100).
portability
In the "portability" category, the Vivo T4 Ultra is a bit better (68/100 vs 55/100).
Frequently asked questions
Which is better: the Redmi K90 or the Vivo T4 Ultra?
The Redmi K90 edges out the Vivo T4 Ultra by just 1 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 and the Vivo T4 Ultra?
The Redmi K90 has a MobileRank rating of 76/100, the Vivo T4 Ultra — 75/100.
Which is more powerful: the Redmi K90 or the Vivo T4 Ultra?
The Redmi K90 leads on performance (91/100 vs 83/100).
Should you choose the Redmi K90 over the Vivo T4 Ultra?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers. The Vivo T4 Ultra is a better fit for gamers and power users, those who care about battery life.