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Signature 27 vs 18 Pro Max

Motorola Signature 27 vs Xiaomi 18 Pro Max

What Signature 27 does better (9) and where 18 Pro Max wins (6) — every spec side by side.

Motorola · 2026Signature 27

9.7Score

9 advantages

Higher score

Xiaomi · 202618 Pro Max

9.7Score

6 advantages≈ $990

9.6Display9.6

9.8Performance9.8

9.8Camera9.8

9.7Battery9.7

9.4Features8.8

Dimensions

Size comparison

Signature 2718 Pro Max

	Signature 27	18 Pro Max	Difference
Height	162.1 mm	163.4 mm	−1.3 mm
Width	76.4 mm	77.6 mm	−1.2 mm
Thickness	7.2 mm	8.4 mm	−1.2 mm
Weight	191 g	235 g	−44 g

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

Why is Signature 27 better than 18 Pro Max?

AnTuTu score5,153,294 vs 5,001,234+3%
Optical zoom5× vs 3.2×+56%
Peak brightness6,200 nits vs 4,000 nits+55%
Geekbench 6 (multi-core)12,703 vs 11,459+11%
Refresh rate165 Hz vs 160 Hz+3%
Weight191 g vs 235 g+23%
Pixel density449 ppi vs 418 ppi+7%
Thickness7.2 mm vs 8.4 mm+17%
Resolution (width)1,264 px vs 1,208 px+5%

Why is 18 Pro Max better than Signature 27?

Main camera50 MP vs 200 MP4×
Battery capacity7,000 mAh vs 8,500 mAh+21%
Wired charging90 W vs 100 W+11%
4K video frame rate60 fps vs 120 fps2×
Main camera aperturef/1.9 vs f/1.7+12%
USB version3.1 vs 3.2+3%

Specifications

Side by side

Only differences	Motorola Signature 279.7	Xiaomi 18 Pro Max≈ $9909.7
Design
Weight	191 g	235 g
Thickness	7.2 mm	8.4 mm
Height	162.1 mm	163.4 mm
Width	76.4 mm	77.6 mm
Frame	Aluminium	Aluminium
Back	—	Plastic
Ingress protection	IP68	IP68
Water resistance (IPx)	IPx8	IPx8
Glass protection	Corning Gorilla Glass Victus 2	Xiaomi Dragon Crystal Glass 3
Colours	Pantone: Coal Smoke, Capulet Olive	Black, White, Pink, Red, Blue
Display
Screen size	6.8″	6.9″
Panel	LTPO AMOLED	LTPO AMOLED
OLED panel	Yes	Yes
LTPO (adaptive 1–120 Hz)	Yes	Yes
Resolution (width)	1,264 px	1,208 px
Resolution (height)	2,780 px	2,624 px
Pixel density	449 ppi	418 ppi
Refresh rate	165 Hz	160 Hz
Peak brightness	6,200 nits	4,000 nits
Screen-to-body ratio	90.2%	91.6%
HDR	Yes	Yes
Performance
Chipset	Qualcomm SM8975 Snapdragon 8 Elite Extreme Gen 6	Qualcomm SM8975 Snapdragon 8 Elite Extreme Gen 6
Chip maker	Qualcomm	Qualcomm
Process	2 nm	2 nm
CPU cores	8	8
CPU frequency	5.01 GHz	5.01 GHz
GPU	Adreno 850	Adreno 850
AnTuTu score	5,153,294	5,001,234
Geekbench 6 (multi-core)	12,703	11,459
Memory
RAM	16 GB	16 GB
Storage (max)	1,024 GB	1,024 GB
Storage (base)	256 GB	256 GB
Storage type	UFS 4.1	UFS 4.1
Memory card slot	No	No
Camera
Main camera	50 MP	200 MP
Main camera aperture	f/1.9	f/1.7
Main sensor size	1/1.28"	1/1.28"
Rear cameras	3	3
Optical stabilisation	Yes	Yes
Ultra-wide camera	Yes	Yes
Telephoto camera	Yes	Yes
Optical zoom	5×	3.2×
Max video	8K	8K
4K video frame rate	60 fps	120 fps
Selfie camera	50 MP	50 MP
4K selfie video	Yes	Yes
Battery
Battery capacity	7,000 mAh	8,500 mAh
Battery type	Si/C	Si/C
Wired charging	90 W	100 W
Wireless charging	Yes	Yes
Wireless charging power	50 W	50 W
Reverse wireless charging	Yes	Yes
Connectivity
5G	Yes	Yes
eSIM	No	No
Dual SIM	Yes	Yes
Wi-Fi standard	Wi-Fi 7	Wi-Fi 7
Bluetooth	6	6
NFC	Yes	Yes
USB	USB Type-C 3.1 Gen2	USB Type-C 3.2
USB version	3.1	3.2
Video output	Yes	Yes
Ultra Wideband	Yes	Yes
Infrared port	—	Yes
Dual-band GPS	—	Yes
Satellite navigation	GLONASS, GALILEO, BDS, NavIC	GLONASS, GALILEO, BDS, QZSS, NavIC
Features
Stereo speakers	Yes	Yes
3.5 mm headphone jack	No	No
Fingerprint sensor	Under display, ultrasonic	Under display, ultrasonic
Barometer	—	Yes
Sensors	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass	Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
Software
OS at launch	Android 17	Android 17
Platform	Android	Android
Interface	—	HyperOS 4
Major OS updates promised	7	—