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Motorola Signature vs Xiaomi 17 Ultra

What Signature does better (10) and where 17 Ultra wins (10) — every spec side by side.

Motorola Signature
Motorola · 2026Signature
9.6Score
10 advantages≈ $1,050
vs
Xiaomi 17 Ultra
Xiaomi · 202617 Ultra
9.7Score
10 advantages≈ $1,250
Higher score
9.6Display9.1
9.1Performance9.5
9.5Camera9.8
9.1Battery9.6
9.8Features9.7
Dimensions

Size comparison

Signature17 Ultra
76.4 × 162.1777.6 × 162.98.3
Signature17 UltraDifference
Height162.1 mm162.9 mm−0.8 mm
Width76.4 mm77.6 mm−1.2 mm
Thickness7 mm8.3 mm−1.3 mm
Weight186 g218 g−32 g

Drawn to the same scale from the official dimensions (front and side).

Why is Signature better than 17 Ultra?

  1. Refresh rate165 Hz vs 120 Hz+38%
  2. Peak brightness6,200 nits vs 3,500 nits+77%
  3. Measured brightness1,518 nits vs 1,132 nits+34%
  4. Weight186 g vs 218 g+17%
  5. Pixel density446 ppi vs 416 ppi+7%
  6. Charged in 30 min100% vs 72%+39%
  7. Thickness7 mm vs 8.3 mm+19%
  8. Main camera aperturef/1.6 vs f/1.7+6%
  9. Loudspeaker loudness-22.8 LUFS vs -24.1 LUFS+-5%
  10. Resolution (width)1,264 px vs 1,200 px+5%

Why is 17 Ultra better than Signature?

  1. AnTuTu score2,381,753 vs 2,777,490+17%
  2. Battery capacity5,200 mAh vs 6,000 mAh+15%
  3. Geekbench 6 (multi-core)8,755 vs 10,896+24%
  4. Active use (test)16.2 h vs 19.1 h+18%
  5. Optical zoom3× vs 4.2×+40%
  6. 3DMark Wild Life Extreme5,589 vs 6,948+24%
  7. CPU frequency3.8 GHz vs 4.6 GHz+21%
  8. Storage (base)256 GB vs 512 GB2×
  9. 4K video frame rate60 fps vs 120 fps2×
  10. USB version3.1 vs 3.2+3%
Specifications

Side by side

Motorola SignatureMotorola Signature≈ $1,0509.6
Xiaomi 17 UltraXiaomi 17 Ultra≈ $1,2509.7
Design
Weight186 g218 g
Thickness7 mm8.3 mm
Height162.1 mm162.9 mm
Width76.4 mm77.6 mm
FrameAluminiumAluminium
Back—Silicone polymer
Ingress protectionIP68IP68
Water resistance (IPx)IPx8IPx8
Glass protectionCorning Gorilla Glass Victus 2Xiaomi Shield Glass 3.0
ColoursPantone: Carbon, Martini OliveBlack, White, Starlit Green
Display
Screen size6.8″6.9″
PanelLTPO AMOLEDLTPO AMOLED
OLED panelYesYes
LTPO (adaptive 1–120 Hz)YesYes
Resolution (width)1,264 px1,200 px
Resolution (height)2,780 px2,608 px
Pixel density446 ppi416 ppi
Refresh rate165 Hz120 Hz
Peak brightness6,200 nits3,500 nits
Measured brightness1,518 nits1,132 nits
Screen-to-body ratio92%92.3%
HDRYesYes
Performance
ChipsetQualcomm SM8845 Snapdragon 8 Gen 5Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5
Chip makerQualcommQualcomm
Process3 nm3 nm
CPU cores88
CPU frequency3.8 GHz4.6 GHz
GPUAdreno 829Adreno 840
AnTuTu score2,381,7532,777,490
Geekbench 6 (multi-core)8,75510,896
3DMark Wild Life Extreme5,5896,948
Memory
RAM16 GB16 GB
Storage (max)1,024 GB1,024 GB
Storage (base)256 GB512 GB
Storage typeUFS 4.1UFS 4.1
Memory card slotNoNo
Camera
Main camera50 MP50 MP
Main camera aperturef/1.6f/1.7
Main sensor size1/1.28"1"
Rear cameras33
Optical stabilisationYesYes
Ultra-wide cameraYesYes
Telephoto cameraYesYes
Optical zoom3×4.2×
Max video8K8K
4K video frame rate60 fps120 fps
Selfie camera50 MP50 MP
4K selfie videoYesYes
Battery
Battery capacity5,200 mAh6,000 mAh
Battery typeSi/CSi/C
Active use (test)16.2 h19.1 h
Wired charging90 W90 W
Charged in 30 min100%72%
Wireless chargingYesYes
Wireless charging power50 W50 W
Reverse wireless chargingYesYes
Connectivity
5GYesYes
eSIMYesYes
Dual SIMYesYes
Wi-Fi standardWi-Fi 7Wi-Fi 7
Bluetooth66
NFCYesYes
USBUSB Type-C 3.1 Gen2USB Type-C 3.2 Gen 2
USB version3.13.2
Video outputYesYes
Ultra WidebandYes—
Infrared port—Yes
Dual-band GPS—Yes
Satellite navigationGLONASS, GALILEO, BDS, NavICGLONASS, GALILEO, BDS, QZSS, NavIC
Features
Stereo speakersYesYes
3.5 mm headphone jackNoNo
Loudspeaker loudness-22.8 LUFS-24.1 LUFS
Fingerprint sensorUnder display, ultrasonicUnder display, ultrasonic
Barometer—Yes
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compassFingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
Software
OS at launchAndroid 16Android 16
PlatformAndroidAndroid
Interface—HyperOS 3
Major OS updates promised7—
EU label
Energy classA—
Battery charge cycles1,200—
Endurance per cycle52 h—
Repairability classB—
Drop resistance classB—
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