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; estimated prices are $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 (3,119,308 vs 1,752,044); the Redmi K70 is noticeably lighter (209g vs 227g).
Redmi K70
Redmi K90 Ultra
- Faster charging: 120W vs 100W
- Lighter: 209g vs 227g
- Cheaper: $320 vs $420
- Better portability (51/100 vs 40/100)
- Higher AnTuTu: 3119308 vs 1752044
- Better Geekbench Single: 3041 vs 2004
- Better Geekbench Multi: 9494 vs 5311
- Bigger battery: 8550 vs 5000 mAh
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 75/100)
- Better camera (37/100 vs 35/100)
- Longer battery life (78/100 vs 64/100)
- Better display (94/100 vs 90/100)
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 75/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 64/100). In the "performance" category, the Redmi K90 Ultra notably outperforms the Redmi K70 (92/100 vs 75/100). 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).
| Specification | Redmi K70 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Gen 2 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1752044 | 3119308 | |
| Geekbench Single | 2004 | 3041 | |
| Geekbench Multi | 5311 | 9494 | |
| 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 | |
| Price | $320 | $420 |
Redmi K70
- Main: 50MP f/1.6
- Ultrawide: 8MP
- Front: 16MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Redmi K70
- 6.7" AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Redmi K70
- 5000 mAh
- Wired: 120W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
We compared Redmi K70 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Redmi K70 by 43.8% in our overall performance rating.
Price difference: $100. Redmi K70 is cheaper by $100.
performance
In the "performance" category, the Redmi K90 Ultra notably outperforms the Redmi K70 (92/100 vs 75/100).
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).
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 75/100).
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.