Redmi K70 vs Redmi K90 Ultra
The Redmi K70 (2023) runs on the Qualcomm Snapdragon 8 Gen 2, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $320 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 64/100 (a 9-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 1,757,044); the Redmi K70 is noticeably lighter (209g vs 227g).
Profile comparison
Category scores
Redmi K70
Redmi K90 Ultra
What makes Redmi K70 better?
- Faster charging: 120W vs 100W
- Lighter: 209g vs 227g
- Cheaper at launch: $320 vs $420
- Better portability (51/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 1757044
- Better Geekbench Single: 3013 vs 2004
- Better Geekbench Multi: 9287 vs 5311
- Bigger battery: 8550 vs 5000 mAh
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 76/100)
- Better camera (37/100 vs 35/100)
- Longer battery life (78/100 vs 64/100)
- Better display (94/100 vs 90/100)
Comparison verdict
Comparing the Redmi K70 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 9 points higher (73/100 vs 64/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 76/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 64/100). Value score: Redmi K70 — 64/100, 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 notably outperforms the Redmi K70 (92/100 vs 76/100). In the "display" category, the Redmi K90 Ultra and the Redmi K70 are nearly equal (94/100 vs 90/100). In the "camera" category, the Redmi K90 Ultra and the Redmi K70 are nearly equal (37/100 vs 35/100). In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 64/100). In the "portability" category, the Redmi K70 is a bit better (51/100 vs 40/100).
Specs comparison
| Specification | Redmi K70 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Gen 2 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1757044 | 3233695 | |
| Geekbench Single | 2004 | 3013 | |
| Geekbench Multi | 5311 | 9287 | |
| Display | 6.7" AMOLED | 6.8" AMOLED | |
| Resolution | 3200x1440 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 5000 mAh | 8550 mAh | |
| Charging | 120W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 14 | Android 16 | |
| Brightness (peak) | 4000 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 160.9×75.0×8.2 mm | 162.9×77.9×8.2 mm | |
| Weight | 209 g | 227 g | |
| Launch price | $320 | $420 |
Camera comparison
Redmi K70
- Main: 50MP f/1.6
- Ultrawide: 8MP
- Front: 16MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Redmi K70
- 6.7" AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Redmi K70
- 5000 mAh
- Wired: 120W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Redmi K70 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Redmi K70 by 45.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $100. Redmi K70 was $100 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra notably outperforms the Redmi K70 (92/100 vs 76/100).
display
In the "display" category, the Redmi K90 Ultra and the Redmi K70 are nearly equal (94/100 vs 90/100).
camera
In the "camera" category, the Redmi K90 Ultra and the Redmi K70 are nearly equal (37/100 vs 35/100).
battery
In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 64/100).
portability
In the "portability" category, the Redmi K70 is a bit better (51/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K70 or the Redmi K90 Ultra?
The Redmi K90 Ultra edges out the Redmi K70 by just 9 points — the two devices are very close in overall level.
What is the rating of the Redmi K70 and the Redmi K90 Ultra?
The Redmi K70 has a MobileRank rating of 64/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the Redmi K70 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 76/100).
Should you choose the Redmi K70 over the Redmi K90 Ultra?
The Redmi K70 is a better fit for active users. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.