Motorola Signature 27 vs Redmi K90 Ultra
The Motorola Signature 27 (2026) runs on the Qualcomm Snapdragon 8 Elite Extreme Gen 6, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Motorola Signature 27 leads — 92/100 vs 73/100 (a 19-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6000); the Motorola Signature 27 is faster in AnTuTu (5,153,294 vs 3,233,695).
Profile comparison
Category scores
Motorola Signature 27
Redmi K90 Ultra
What makes Motorola Signature 27 better?
- Higher AnTuTu: 5153294 vs 3233695
- Better Geekbench Single: 4327 vs 3013
- Better Geekbench Multi: 12873 vs 9287
- Higher performance (100/100 vs 92/100)
- Better camera (87/100 vs 37/100)
- Longer battery life (80/100 vs 78/100)
What makes Redmi K90 Ultra better?
- Bigger battery: 8550 vs 6000 mAh
- Faster charging: 100W vs 90W
- Overall rating 73/100
Comparison verdict
Comparing the Motorola Signature 27 vs the Redmi K90 Ultra, the Motorola Signature 27 scores 19 points higher (92/100 vs 73/100). In the "camera" category, the Motorola Signature 27 leads (87/100 vs 37/100). In the "performance" category, the Motorola Signature 27 is a bit better (100/100 vs 92/100). In the "display" category, both devices are on the same level — 94/100. In the "camera" category, the Motorola Signature 27 significantly outperforms the Redmi K90 Ultra (87/100 vs 37/100). In the "battery" category, the Motorola Signature 27 and the Redmi K90 Ultra are nearly equal (80/100 vs 78/100).
Specs comparison
| Specification | Motorola Signature 27 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Extreme Gen 6 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 5153294 | 3233695 | |
| Geekbench Single | 4327 | 3013 | |
| Geekbench Multi | 12873 | 9287 | |
| Display | 6.8" LTPO AMOLED | 6.8" AMOLED | |
| Resolution | 1264x2780 | 1280x2772 | |
| Refresh rate | 165 Hz | 165 Hz | |
| Battery | 6000 mAh | 8550 mAh | |
| Charging | 90W | 100W | |
| Wireless charging | 50W | 0W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Telephoto | 200 MP | 0 MP | |
| Front camera | 50 MP | 20 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 17 | Android 16 | |
| Brightness (peak) | — | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | IP68/IP69 | |
| Dimensions | — | 162.9×77.9×8.2 mm | |
| Weight | — | 227 g | |
| Launch price | — | $420 |
Camera comparison
Motorola Signature 27
- Main: 50MP f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 50MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Motorola Signature 27
- 6.8" LTPO AMOLED
- Resolution: 1264x2780
- Refresh rate: 165 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Motorola Signature 27
- 6000 mAh
- Wired: 90W
- Wireless: 50W
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Motorola Signature 27 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Motorola Signature 27 leads Redmi K90 Ultra by 59.4% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Motorola Signature 27
Price unknownDetailed category analysis
performance
In the "performance" category, the Motorola Signature 27 is a bit better (100/100 vs 92/100).
display
In the "display" category, both devices are on the same level — 94/100.
camera
In the "camera" category, the Motorola Signature 27 significantly outperforms the Redmi K90 Ultra (87/100 vs 37/100).
battery
In the "battery" category, the Motorola Signature 27 and the Redmi K90 Ultra are nearly equal (80/100 vs 78/100).
Frequently asked questions
Which is better: the Motorola Signature 27 or the Redmi K90 Ultra?
The Motorola Signature 27 is noticeably better than the Redmi K90 Ultra — the overall rating gap is 19 points.
What is the rating of the Motorola Signature 27 and the Redmi K90 Ultra?
The Motorola Signature 27 has a MobileRank rating of 92/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Motorola Signature 27 or the Redmi K90 Ultra?
The Motorola Signature 27 leads on camera score (87/100 vs 37/100).
Which is more powerful: the Motorola Signature 27 or the Redmi K90 Ultra?
The Motorola Signature 27 leads on performance (100/100 vs 92/100).
Should you choose the Motorola Signature 27 over the Redmi K90 Ultra?
The Motorola Signature 27 is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.