Motorola Signature vs Xiaomi 15 Ultra
The Motorola Signature (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $699 and $999. By overall MobileRank rating, the Motorola Signature leads — 89/100 vs 85/100 (a 4-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 5200); the Motorola Signature is faster in AnTuTu (3,942,923 vs 3,030,376); per DXOMark lab testing, the Motorola Signature has the stronger camera (164 vs 159); the Motorola Signature is noticeably lighter (186g vs 225g).
Motorola Signature
Xiaomi 15 Ultra
- Higher AnTuTu: 3942923 vs 3030376
- Better Geekbench Single: 3640 vs 3050
- Better Geekbench Multi: 11033 vs 10200
- Lighter: 186g vs 225g
- Cheaper: $699 vs $999
- Higher performance (98/100 vs 92/100)
- Better camera (91/100 vs 87/100)
- Better portability (78/100 vs 29/100)
- Better value for money (90/100 vs 82/100)
- Bigger battery: 6000 vs 5200 mAh
- Longer battery life (80/100 vs 77/100)
- Better display (90/100 vs 84/100)
Comparing the Motorola Signature vs the Xiaomi 15 Ultra, the Motorola Signature scores 4 points higher (89/100 vs 85/100). In the "performance" category, the Motorola Signature is a bit better (98/100 vs 92/100). In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 84/100). In the "camera" category, the Motorola Signature and the Xiaomi 15 Ultra are nearly equal (91/100 vs 87/100). In the "battery" category, the Xiaomi 15 Ultra and the Motorola Signature are nearly equal (80/100 vs 77/100). In the "portability" category, the Motorola Signature significantly outperforms the Xiaomi 15 Ultra (78/100 vs 29/100). In the "value for money" category, the Motorola Signature is a bit better (90/100 vs 82/100).
| Specification | Motorola Signature | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3942923 | 3030376 | |
| Geekbench Single | 3640 | 3050 | |
| Geekbench Multi | 11033 | 10200 | |
| Display | 6.8" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1264x2780 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5200 mAh | 6000 mAh | |
| Charging | 90W | 90W | |
| Wireless charging | 50W | 50W | |
| DXOMark (camera) | 164 | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 13 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 6200 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 162.1×76.4×7.0 mm | 161.3×75.3×9.4 mm | |
| Weight | 186 g | 225 g | |
| Price | $699 | $999 |
Motorola Signature
- Main: 50MP f/f/1.8
- Ultrawide: 13MP
- Front: 32MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Motorola Signature
- 6.8" AMOLED
- Resolution: 1264x2780
- Refresh rate: 120 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Motorola Signature
- 5200 mAh
- Wired: 90W
- Wireless: 50W
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
We compared Motorola Signature and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Motorola Signature leads Xiaomi 15 Ultra by 30.1% in our overall performance rating.
Price difference: $300. Motorola Signature is cheaper by $300.
performance
In the "performance" category, the Motorola Signature is a bit better (98/100 vs 92/100).
display
In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 84/100).
camera
In the "camera" category, the Motorola Signature and the Xiaomi 15 Ultra are nearly equal (91/100 vs 87/100).
battery
In the "battery" category, the Xiaomi 15 Ultra and the Motorola Signature are nearly equal (80/100 vs 77/100).
portability
In the "portability" category, the Motorola Signature significantly outperforms the Xiaomi 15 Ultra (78/100 vs 29/100).
value for money
In the "value for money" category, the Motorola Signature is a bit better (90/100 vs 82/100).
Which is better: the Motorola Signature or the Xiaomi 15 Ultra?
The Motorola Signature edges out the Xiaomi 15 Ultra by just 4 points — the two devices are very close in overall level.
What is the rating of the Motorola Signature and the Xiaomi 15 Ultra?
The Motorola Signature has a MobileRank rating of 89/100, the Xiaomi 15 Ultra — 85/100.
Which is more powerful: the Motorola Signature or the Xiaomi 15 Ultra?
The Motorola Signature leads on performance (98/100 vs 92/100).
Should you choose the Motorola Signature over the Xiaomi 15 Ultra?
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 Xiaomi 15 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.