Xiaomi 15 Ultra vs Motorola Signature Specs Comparison

Availability

Officially announced
Feb 27, 2025	Jan 07, 2026
Prices (MSRP)
12GB/256GB - €1599	16GB/512 - €1000

Design

Dimensions
6.35 x 2.96 x 0.37 inches (~0.42 inches with camera bump) 161.3 x 75.3 x 9.4 mm (~10.7 mm with camera bump)	6.38 x 3.01 x 0.28 inches 162.1 x 76.4 x 6.99 mm
Weight
	6.56 oz / 186.0 g
Materials
	Frame: Aluminum
Resistance
Water, Dust; IP68	Water, Splash, Dust; IP69; MIL-STD 810H
Biometrics
Ultrasonic in-screen fingerprint	Ultrasonic in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, White, Silver Chrome, Green	Carbon, Martini Olive

Display

Size
6.7-inch, 90.18% screen-to-body	6.8-inch, 90.72% screen-to-body
Type
AMOLED, 120Hz, HDR, 3000 nits	AMOLED, 165Hz, 6200 nits
Resolution
3200x1440px, 20:9 ratio, 521 PPI	2780x1264px, 449 PPI
Protection
Xiaomi Shield Glass 2.0	Corning Gorilla Glass Victus 2
Features
HDR support, Dolby Vision, Scratch-resistant glass, Ambient light sensor, Proximity sensor	HDR support, Dolby Vision

PhoneArena Display Test

Bright Max (20% APL)
3287 (Excellent)	1572 (Good)
Bright Min
1.8 (Good)	1.8 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 8 Elite SM8750-AB (4 nm)	Snapdragon 8 Gen 5 SM8845 (3 nm)
Processor
Octa-core 2x4.32GHz Oryon V2 PhoenixL 6x3.53GH​z Oryon V2 PhoenixM	Octa-core 2x3.8GHz Oryon V3 Phoenix L 6x3.32GHz Oryon V3 Phoenix M
GPU
Adreno 830	Adreno 840
Memory
12GB (LPDDR5X)/256GB (UFS 4.1) 16GB/512GB 16GB/1024GB	16GB (LPDDR5X)/512GB (UFS 4.1)
Storage expansion
not expandable	not expandable
OS
Android (15)	Android (16)

PhoneArena Performance Test

GeekBench 6 Single
2962	2870
GeekBench 6 Multi
8965	8341
3D Mark High
5826	5425
3D Mark Low
4771	2644

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
6000 mAh, Si - Carbon	5200 mAh, Si - Carbon
Charging
Fast charging Qi wireless charging, Reverse wireless charging	Reverse wireless charging
Charge speed
Wired: 90.0W Wireless: 80.0W	Wired: 90.0W Wireless: 50.0W

PhoneArena Battery Tests

Battery Life Estimate

7h 33min

Browsing

16h 39min

Video

10h 11min

Gaming

13h 29min

Battery Life Estimate

5h 31min

Browsing

11h 7min

Video

8h 44min

Gaming

8h 16min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Quad camera	Triple camera
Main camera
50 MP (Autofocus, Laser and PDAF) Aperture size: F1.6 Focal length: 23 mm Sensor size: 1" Pixel size: 1.6 μm	50 MP (OIS, PDAF) Aperture size: F1.6 Sensor size: 1/1.28" Pixel size: 1.22 μm
Second camera
50 MP (Ultra-wide, PDAF) Aperture size: F2.2 Focal Length: 14 mm Sensor size: 1/2.76" Pixel size: 0.64 μm	50 MP (Ultra-wide) Aperture size: F2.0 Focal Length: 12 mm Sensor size: 1/2.76" Pixel size: 0.64 μm
Third camera
50 MP (Telephoto) Optical zoom: 3.2x Aperture size: F1.8 Focal Length: 75 mm Sensor size: 1/2.51" Pixel size: 0.7 μm	50 MP (Telephoto, Periscope, OIS) Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 71 mm Sensor size: 1/1.95" Pixel size: 0.8 μm
Fourth camera
200 MP (Telephoto, Periscope, OIS, PDAF) Optical zoom: 4.3x Aperture size: F2.6 Focal Length: 100 mm Sensor size: 1/1.4" Pixel size: 0.56 μm
Fifth camera
ToF 3D depth sensing
Flash
Dual LED
Video recording
8K UHD (30 fps), 4K UHD (120 fps), 1080p (1920 fps)	8K UHD (30 fps), 4K UHD (120 fps), 1080p (240 fps)
Front
32 MP Video capture: 4K UHD (60 fps)	50 MP (Autofocus)

PhoneArena Camera Tests

158

Overall

165

Photo

150

Video

N/A

Overall

N/A

Photo

N/A

Video

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
6.0	6.0
WLAN
Wi-Fi 6,Wi-Fi 6E,Wi-Fi 7,tri-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	Wi-Fi 6,Wi-Fi 7 Wi-Fi Direct, Hotspot
USB
Type-C, USB 3.2	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning, Emergency SOS via satellite (SMS sending/receiving)	GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning
Other
NFC, Infrared	NFC

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers

Cellular

5G Bands
n1, n2, n3, n5, n7, n8, n12, n20, n25, n26, n28, n34, n38, n39, n40, n41, n48, n66, n71, n75, n77, n78, n79, SA, NSA, Sub-6	n1, n2, n3, n4, n5, n7, n8, n20, n25, n26, n28, n38, n40, n41, n66, n70, n71, n77, n78, n80, n84
LTE Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66, 71	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66, 71
TDD Bands
38, 39, 40, 41, 42, 48	34, 38, 39, 40, 41, 42, 43, 46
3G Bands
1, 2, 4, 5, 6, 8	1, 2, 4, 5, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s
SIM type
Dual Nano SIM + eSIM	Nano SIM, eSIM

Discover more

Full Specs Xiaomi 15 Ultra Specs PA Review Xiaomi 15 Ultra Review

Full Specs Motorola Signature Specs