Redmi K70 Ultra vs Redmi K90 Ultra
The Redmi K70 Ultra (2024) runs on the MediaTek Dimensity 9300+, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $375 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 68/100 (a 5-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5500); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 2,384,849).
Profile comparison
Category scores
Redmi K70 Ultra
Redmi K90 Ultra
What makes Redmi K70 Ultra better?
- Faster charging: 120W vs 100W
- Lighter: 213g vs 227g
- Cheaper at launch: $375 vs $420
- Better portability (46/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 2384849
- Better Geekbench Single: 3013 vs 2249
- Better Geekbench Multi: 9287 vs 7352
- Bigger battery: 8550 vs 5500 mAh
- Higher refresh rate: 165Hz vs 144Hz
- Higher performance (92/100 vs 83/100)
- Longer battery life (78/100 vs 70/100)
- Better display (94/100 vs 93/100)
Comparison verdict
Comparing the Redmi K70 Ultra vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 5 points higher (73/100 vs 68/100). Value score: Redmi K70 Ultra — 66/100, Redmi K90 Ultra — 72/100; 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 Ultra is a bit better (92/100 vs 83/100). In the "display" category, the Redmi K90 Ultra and the Redmi K70 Ultra are nearly equal (94/100 vs 93/100). In the "camera" category, both devices are on the same level — 37/100. In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 70/100). In the "portability" category, the Redmi K70 Ultra is a bit better (46/100 vs 40/100).
Specs comparison
| Specification | Redmi K70 Ultra | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9300+ | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 2384849 | 3233695 | |
| Geekbench Single | 2249 | 3013 | |
| Geekbench Multi | 7352 | 9287 | |
| Display | 6.7" OLED | 6.8" AMOLED | |
| Resolution | 1220x2712 | 1280x2772 | |
| Refresh rate | 144 Hz | 165 Hz | |
| Battery | 5500 mAh | 8550 mAh | |
| Charging | 120W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 20 MP | 20 MP | |
| RAM | 12GB / 16GB / 24GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 14 | Android 16 | |
| Brightness (peak) | 4000 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 160.4×75.1×8.4 mm | 162.9×77.9×8.2 mm | |
| Weight | 213 g | 227 g | |
| Launch price | $375 | $420 |
Camera comparison
Redmi K70 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Redmi K70 Ultra
- 6.7" OLED
- Resolution: 1220x2712
- Refresh rate: 144 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Redmi K70 Ultra
- 5500 mAh
- Wired: 120W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Redmi K70 Ultra and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Redmi K70 Ultra by 26.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $45. Redmi K70 Ultra was $45 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra is a bit better (92/100 vs 83/100).
display
In the "display" category, the Redmi K90 Ultra and the Redmi K70 Ultra are nearly equal (94/100 vs 93/100).
camera
In the "camera" category, both devices are on the same level — 37/100.
battery
In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 70/100).
portability
In the "portability" category, the Redmi K70 Ultra is a bit better (46/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K70 Ultra or the Redmi K90 Ultra?
The Redmi K90 Ultra edges out the Redmi K70 Ultra by just 5 points — the two devices are very close in overall level.
What is the rating of the Redmi K70 Ultra and the Redmi K90 Ultra?
The Redmi K70 Ultra has a MobileRank rating of 68/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the Redmi K70 Ultra or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 83/100).
Should you choose the Redmi K70 Ultra over the Redmi K90 Ultra?
The Redmi K70 Ultra is a better fit for gamers and power users. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.