Redmi K70 Ultra vs Redmi K90
The Redmi K70 Ultra (2024) runs on the MediaTek Dimensity 9300+, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $375 and $401. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 68/100 (a 8-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 2,384,849).
Profile comparison
Category scores
Redmi K70 Ultra
Redmi K90
What makes Redmi K70 Ultra better?
- Faster charging: 120W vs 100W
- Higher refresh rate: 144Hz vs 120Hz
- Cheaper at launch: $375 vs $401
- Better display (93/100 vs 82/100)
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 2384849
- Better Geekbench Single: 3013 vs 2249
- Better Geekbench Multi: 9287 vs 7352
- Bigger battery: 7100 vs 5500 mAh
- Lighter: 206g vs 213g
- Higher performance (91/100 vs 83/100)
- Better camera (58/100 vs 37/100)
- Longer battery life (72/100 vs 70/100)
- Better portability (55/100 vs 46/100)
Comparison verdict
Comparing the Redmi K70 Ultra vs the Redmi K90, the Redmi K90 scores 8 points higher (76/100 vs 68/100). In the "camera" category, the Redmi K90 leads (58/100 vs 37/100). Value score: Redmi K70 Ultra — 66/100, Redmi K90 — 80/100; 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 Redmi K70 Ultra is a bit better (93/100 vs 82/100). In the "camera" category, the Redmi K90 notably outperforms the Redmi K70 Ultra (58/100 vs 37/100). In the "battery" category, the Redmi K90 and the Redmi K70 Ultra are nearly equal (72/100 vs 70/100). In the "portability" category, the Redmi K90 is a bit better (55/100 vs 46/100).
Specs comparison
| Specification | Redmi K70 Ultra | Redmi K90 | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9300+ | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 2384849 | 3077585 | |
| Geekbench Single | 2249 | 3013 | |
| Geekbench Multi | 7352 | 9287 | |
| Display | 6.7" OLED | 6.6" AMOLED | |
| Resolution | 1220x2712 | 2510x1156 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 5500 mAh | 7100 mAh | |
| Charging | 120W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Telephoto | 0 MP | 50 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 | |
| Dimensions | 160.4×75.1×8.4 mm | 157.5×75.3×8.0 mm | |
| Weight | 213 g | 206 g | |
| Launch price | $375 | $401 |
Camera comparison
Redmi K70 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
Redmi K70 Ultra
- 6.7" OLED
- Resolution: 1220x2712
- Refresh rate: 144 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
Redmi K70 Ultra
- 5500 mAh
- Wired: 120W
- No wireless charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Redmi K70 Ultra and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Redmi K70 Ultra by 22.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $26. Redmi K70 Ultra was $26 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 Redmi K70 Ultra is a bit better (93/100 vs 82/100).
camera
In the "camera" category, the Redmi K90 notably outperforms the Redmi K70 Ultra (58/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 and the Redmi K70 Ultra are nearly equal (72/100 vs 70/100).
portability
In the "portability" category, the Redmi K90 is a bit better (55/100 vs 46/100).
Frequently asked questions
Which is better: the Redmi K70 Ultra or the Redmi K90?
The Redmi K90 edges out the Redmi K70 Ultra by just 8 points — the two devices are very close in overall level.
What is the rating of the Redmi K70 Ultra and the Redmi K90?
The Redmi K70 Ultra has a MobileRank rating of 68/100, the Redmi K90 — 76/100.
Which has the better camera: the Redmi K70 Ultra or the Redmi K90?
The Redmi K90 leads on camera score (58/100 vs 37/100).
Which is more powerful: the Redmi K70 Ultra or the Redmi K90?
The Redmi K90 leads on performance (91/100 vs 83/100).
Should you choose the Redmi K70 Ultra over the Redmi K90?
The Redmi K70 Ultra is a better fit for gamers and power users. The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.