Motorola Signature 27 vs Xiaomi 15 Ultra
The Motorola Signature 27 (2026) runs on the Qualcomm Snapdragon 8 Elite Extreme Gen 6, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Motorola Signature 27 leads — 92/100 vs 85/100 (a 7-point difference). Key differences: the Motorola Signature 27 is faster in AnTuTu (5,153,294 vs 3,030,376).
Profile comparison
Category scores
Motorola Signature 27
Xiaomi 15 Ultra
What makes Motorola Signature 27 better?
- Higher AnTuTu: 5153294 vs 3030376
- Better Geekbench Single: 4327 vs 3050
- Better Geekbench Multi: 12873 vs 10200
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (100/100 vs 92/100)
- Better display (94/100 vs 90/100)
What makes Xiaomi 15 Ultra better?
- Overall rating 85/100
Comparison verdict
Comparing the Motorola Signature 27 vs the Xiaomi 15 Ultra, the Motorola Signature 27 scores 7 points higher (92/100 vs 85/100). In the "performance" category, the Motorola Signature 27 is a bit better (100/100 vs 92/100). In the "display" category, the Motorola Signature 27 and the Xiaomi 15 Ultra are nearly equal (94/100 vs 90/100). In the "camera" category, both devices are on the same level — 87/100. In the "battery" category, both devices are on the same level — 80/100.
Specs comparison
| Specification | Motorola Signature 27 | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Extreme Gen 6 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 5153294 | 3030376 | |
| Geekbench Single | 4327 | 3050 | |
| Geekbench Multi | 12873 | 10200 | |
| Display | 6.8" LTPO AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1264x2780 | 3200x1440 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 6000 mAh | 6000 mAh | |
| Charging | 90W | 90W | |
| Wireless charging | 50W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 200 MP | 50 MP | |
| Front camera | 50 MP | 32 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 17 | Android 15 / HyperOS 2 | |
| Brightness (peak) | — | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | IP68 | |
| Dimensions | — | 161.3×75.3×9.4 mm | |
| Weight | — | 225 g | |
| Launch price | — | $999 |
Camera comparison
Motorola Signature 27
- Main: 50MP f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 50MP
Xiaomi 15 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Motorola Signature 27
- 6.8" LTPO AMOLED
- Resolution: 1264x2780
- Refresh rate: 165 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
Motorola Signature 27
- 6000 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
Overall performance score
We compared Motorola Signature 27 and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Motorola Signature 27 leads Xiaomi 15 Ultra by 70.1% 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, the Motorola Signature 27 and the Xiaomi 15 Ultra are nearly equal (94/100 vs 90/100).
camera
In the "camera" category, both devices are on the same level — 87/100.
battery
In the "battery" category, both devices are on the same level — 80/100.
Frequently asked questions
Which is better: the Motorola Signature 27 or the Xiaomi 15 Ultra?
The Motorola Signature 27 edges out the Xiaomi 15 Ultra by just 7 points — the two devices are very close in overall level.
What is the rating of the Motorola Signature 27 and the Xiaomi 15 Ultra?
The Motorola Signature 27 has a MobileRank rating of 92/100, the Xiaomi 15 Ultra — 85/100.
Which is more powerful: the Motorola Signature 27 or the Xiaomi 15 Ultra?
The Motorola Signature 27 leads on performance (100/100 vs 92/100).
Should you choose the Motorola Signature 27 over the Xiaomi 15 Ultra?
The Motorola Signature 27 is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life. 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.