Motorola Signature vs Redmi K90
The Motorola Signature (2026) runs on the Qualcomm Snapdragon 8 Gen 5, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $699 and $401. By overall MobileRank rating, the Motorola Signature leads — 86/100 vs 76/100 (a 10-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 5200); the Redmi K90 is faster in AnTuTu (3,077,585 vs 3,057,215); the Motorola Signature is noticeably lighter (186g vs 206g).
Profile comparison
Category scores
Motorola Signature
Redmi K90
What makes Motorola Signature better?
- Lighter: 186g vs 206g
- Better camera (91/100 vs 58/100)
- Longer battery life (77/100 vs 72/100)
- Better display (84/100 vs 82/100)
- Better portability (78/100 vs 55/100)
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 3057215
- Better Geekbench Single: 3013 vs 2833
- Better Geekbench Multi: 9287 vs 9119
- Bigger battery: 7100 vs 5200 mAh
- Faster charging: 100W vs 90W
- Cheaper at launch: $401 vs $699
- Higher performance (91/100 vs 90/100)
Comparison verdict
Comparing the Motorola Signature vs the Redmi K90, the Motorola Signature scores 10 points higher (86/100 vs 76/100). In the "camera" category, the Motorola Signature leads (91/100 vs 58/100). Value score: Motorola Signature — 86/100, 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 and the Motorola Signature are nearly equal (91/100 vs 90/100). In the "display" category, the Motorola Signature and the Redmi K90 are nearly equal (84/100 vs 82/100). In the "camera" category, the Motorola Signature significantly outperforms the Redmi K90 (91/100 vs 58/100). In the "battery" category, the Motorola Signature is a bit better (77/100 vs 72/100). In the "portability" category, the Motorola Signature notably outperforms the Redmi K90 (78/100 vs 55/100).
Specs comparison
| Specification | Motorola Signature | Redmi K90 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Gen 5 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3057215 | 3077585 | |
| Geekbench Single | 2833 | 3013 | |
| Geekbench Multi | 9119 | 9287 | |
| Display | 6.8" AMOLED | 6.6" AMOLED | |
| Resolution | 1264x2780 | 2510x1156 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5200 mAh | 7100 mAh | |
| Charging | 90W | 100W | |
| Wireless charging | 50W | 0W | |
| DXOMark (camera) | 164 | — | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 13 MP | 8 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 6200 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 162.1×76.4×7.0 mm | 157.5×75.3×8.0 mm | |
| Weight | 186 g | 206 g | |
| Launch price | $699 | $401 |
Camera comparison
Motorola Signature
- Main: 50MP f/1.8
- Ultrawide: 13MP
- Telephoto: 50MP
- Front: 32MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
Motorola Signature
- 6.8" AMOLED
- Resolution: 1264x2780
- Refresh rate: 120 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
Motorola Signature
- 5200 mAh
- Wired: 90W
- Wireless: 50W
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Motorola Signature and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Motorola Signature by 0.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $298. Redmi K90 was $298 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 and the Motorola Signature are nearly equal (91/100 vs 90/100).
display
In the "display" category, the Motorola Signature and the Redmi K90 are nearly equal (84/100 vs 82/100).
camera
In the "camera" category, the Motorola Signature significantly outperforms the Redmi K90 (91/100 vs 58/100).
battery
In the "battery" category, the Motorola Signature is a bit better (77/100 vs 72/100).
portability
In the "portability" category, the Motorola Signature notably outperforms the Redmi K90 (78/100 vs 55/100).
Frequently asked questions
Which is better: the Motorola Signature or the Redmi K90?
The Motorola Signature is noticeably better than the Redmi K90 — the overall rating gap is 10 points.
What is the rating of the Motorola Signature and the Redmi K90?
The Motorola Signature has a MobileRank rating of 86/100, the Redmi K90 — 76/100.
Which has the better camera: the Motorola Signature or the Redmi K90?
The Motorola Signature leads on camera score (91/100 vs 58/100).
Should you choose the Motorola Signature over the Redmi K90?
The Motorola Signature is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers. The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.