Home > Smartphone comparison > 18 Pro vs Signature 27 – which one to choose?

Xiaomi 18 Pro vs Motorola Signature 27

92 out of 100
Xiaomi 18 Pro
VS
93 out of 100
Motorola Signature 27
Xiaomi 18 Pro
Motorola Signature 27

Here we compared two flagship smartphones: the 6.4-inch Xiaomi 18 Pro (with Qualcomm Snapdragon 8 Elite Gen 6) that was released on September 23, 2026, against the Motorola Signature 27, which is powered by Qualcomm Snapdragon 8 Elite Extreme Gen 6. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Select the amount of RAM to evaluate performance and value for money more precisely
Memory
  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery life
  6. Camera
  7. Comments

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi 18 Pro
  • Slow-motion recording at 1920FPS
  • Supports higher wattage charging (100W versus 90W)
  • Has a built-in infrared port
Reasons to consider the Motorola Signature 27
  • Higher display refresh rate – 165 Hz
  • The rear camera has a 5x optical zoom
  • Waterproof body (IP69 classification)
  • Has a 0.4 inch larger screen size
  • 12% faster in single-core GeekBench 6 test: 4320 and 3866 points
  • Ready for eSIM technology

Review

Evaluation of Xiaomi 18 Pro and Motorola Signature 27 crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
NanoReview Score
Final comparison evaluation
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Value for money (Beta)

To get an accurate value-for-money index, update the default prices with actual prices from your country’s retailers (for the selected memory configs) and press the "Calculate" button.
Currency
12 / 256 GB
VS
12 / 256 GB
49.3
(Average)
Value Index
50.6
(Average)

Tests and specifications

Comparison table of technical specifications and tests
Phone:
18 Pro
vs
Signature 27

Display

Type AMOLED AMOLED
Size 6.4 inches 6.8 inches
Resolution 1120 x 2436 pixels 1264 x 2780 pixels
Aspect ratio 19.5:9 20:9
PPI 419 ppi 449 ppi
Refresh rate 120 Hz 165 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes
Max rated brightness 1200 nits -
Max rated brightness in HDR 4000 nits 6200 nits
HDR support Yes, Dolby Vision Yes, Dolby Vision
Touch sampling rate 300 Hz 360 Hz
Screen protection Dragon Crystal Glass 3 Gorilla Glass Victus 2
Screen-to-body ratio 92% 90.2%
Display features - DCI-P3
- Always-On Display
- DC Dimming		 - DCI-P3
- Always-On Display
- DC Dimming
Screen space comparison
Signature 27
6.8″ (20:9 ratio) = 17.3 in2
18 Pro
6.4″ (19.5:9 ratio) = 15.6 in2
~11% more screen space

Design and build

Height 151.8 mm (5.98 inches) 162.09 mm (6.38 inches)
Width 72 mm (2.83 inches) 76.4 mm (3.01 inches)
Thickness 8.46 mm (0.33 inches) 7.2 mm (0.28 inches)
Weight 203 g (7.16 oz) 191 g (6.74 oz)
Waterproof IP68 IP69
Advanced cooling Vapor chamber Vapor chamber
Rear material Plastic -
Frame material Metal Metal
Colors White, Black, Blue, Red, Pink Black, Green
Fingerprint scanner Yes, in-display Yes, in-display
Screen-to-body ratio
18 Pro +2%
92%
Signature 27
90.2%

Performance

Chipset specifications of Xiaomi 18 Pro and Motorola Signature 27
SoC
Chipset Qualcomm Snapdragon 8 Elite Gen 6 Qualcomm Snapdragon 8 Elite Extreme Gen 6
Max clock 5010 MHz 5010 MHz
CPU cores 8 (2 + 3 + 3) 8 (2 + 3 + 3)
Architecture - 3 cores at 3.74 GHz:
- 3 cores at 4.03 GHz:
- 2 cores at 5.01 GHz: 		- 3 cores at 3.74 GHz:
- 3 cores at 4.03 GHz:
- 2 cores at 5.01 GHz:
Manufacturing TSMC TSMC
Lithography process 2 nanometers 2 nanometers
Neural processor (NPU) Hexagon Hexagon
GPU
Graphics Adreno 845 Adreno 850
GPU shading units 1536 1536
GPU clock - 1450 MHz
FLOPS - ~4454.4 GFLOPS

Benchmarks

Benchmark comparison of Xiaomi 18 Pro and Motorola Signature 27
Geekbench 6 (Single-Core)
18 Pro
3866
Signature 27 +12%
4320
Geekbench 6 (Multi-Core)
18 Pro
11140
Signature 27 +14%
12703
Single-core score 3866 4320
Multi-core score 11140 12703
Sources: Geekbench [3]
AnTuTu Benchmark 11
18 Pro
4888150
Signature 27 +5%
5153294
CPU 1365000 1448200
GPU 1783000 1911500
Memory 662300 697400
UX 1047850 1096194
Total score 4888150 5153294
Samples Less than 3 Less than 3
AnTuTu 11 Ranking List (5th and 2nd place)
Submit your benchmark results

Memory

RAM
RAM size 12 GB 12 GB
Memory type LPDDR5X LPDDR5X
Channels 4 4
Storage
Storage size 256 GB 256 GB
Storage type UFS 4.1 UFS 4.1
Memory card No No

Software

Operating system Android 17 Android 17
ROM HyperOS 4 -
OS updates 6 years 7 years
Security updates 6 years 7 years

Battery

Capacity 7000 mAh 7000 mAh
Max charge power 100 W 90 W
Battery type Silicon-Carbon (Si/C) Silicon-Carbon (Si/C)
Replaceable No No
Wireless charging Yes (50 W) Yes (50 W)
Reverse charging Yes, (wireless) Yes, (wireless)
Bypass charging Yes No
Fast charging Yes Yes
Add your battery life

Main camera

Matrix 200 megapixels 50 megapixels
Image resolution - 8192 x 6144
Zoom Optical, 3.2x Optical, 5x
Flash Dual LED Dual LED
Stabilization Optical Optical
8K video recording Up to 30FPS Up to 30FPS
4K video recording Up to 120FPS Up to 120FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 1920 FPS (720p) 240 FPS (1080p)
Angle of widest lens 102° 122°
Lenses 1) Standard: 200 MP
2) Telephoto: 200 MP
3) Ultrawide: 50 MP
1) Standard: 50 MP
2) Telephoto: 200 MP
3) Ultrawide: 50 MP
Camera features - Bokeh mode
- Pro mode
- RAW support		 - Bokeh mode
- Pro mode
Standard lens
Image resolution 200 MP 50 MP
Aperture f/1.7 f/1.9
Focal length 23 mm 23 mm
Sensor size 1/1.28" (≈ 0.78 inch) 1/1.28" (≈ 0.78 inch)
Pixel size 0.61 micron 1.22 micron
Autofocus Laser autofocus Laser autofocus
Stabilization Optical Optical
Telephoto lens
Image resolution 200 MP 200 MP
Aperture f/2.4 -
Focal length 75 mm -
Sensor Samsung ISOCELL HP5 Sony LYT-901
Sensor size 1/1.56" (≈ 0.64 inch) 1/1.12" (≈ 0.89 inch)
Pixel size 0.8 micron -
Stabilization Optical Optical
Ultra-wide lens
Image resolution 50 MP 50 MP
Aperture f/2.4 f/2.0
Focal length 17 mm 12 mm
Sensor OmniVision OV50M40 Samsung S5KJN1
Sensor size 1/2.88" (≈ 0.35 inch) 1/2.76" (≈ 0.36 inch)
Pixel size 0.61 micron 0.64 micron
Stabilization Digital Digital

Selfie camera

Megapixels 50 megapixels 50 megapixels
Image resolution 8192 x 6144 8192 x 6144
Aperture f/2.2 f/2.0
Focal length 21 mm 21 mm
Sensor OmniVision OV50M40 Samsung S5KJN1
Sensor size 1/2.88" (≈ 0.35 inch) 1/2.93" (≈ 0.34 inch)
Pixel size 0.61 micron 0.6 micron
Autofocus Phase autofocus No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 FPS 2160p (4K) at 60 FPS
Depth sensor (TOF 3D) No No

Connectivity

Wi-Fi standard Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 6.0 6.0
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 3.2 3.2
USB features - Charging
- USB-Storage mode
- OTG		 - Charging
- USB-Storage mode
- OTG
DisplayPort Yes Yes, DP 1.4
GPS GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC GPS, GLONASS, Beidou, Galileo
NFC* Yes Yes
Infrared port Yes No
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No Yes
Hybrid slot No No
5G support Yes Yes

Sound

Speakers Stereo Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos Yes Yes

Other

Category Flagship Flagship
Announced September 2026 September 2026
Release date September 2026 October 2026
Launch price (MSRP) $999 $999
Sensors - Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint		 - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger Yes, 100 W Not included
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the design is more important to you, then choose the Motorola Signature 27. But if the software is more of a priority – go for the Xiaomi 18 Pro.

Cast your vote

So, which phone would you choose?
0 (0%)
2 (100%)
Total votes: 2

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