Home > Smartphone comparison > Mi 9 Lite vs Galaxy M31 – which one to choose?

Xiaomi Mi 9 Lite vs Samsung Galaxy M31

Here we compared two mid-range smartphones: the 6.39-inch Xiaomi Mi 9 Lite (with Qualcomm Snapdragon 710) that was released on September 16, 2019, against the Samsung Galaxy M31, which is powered by Exynos 7 Octa 9611 and came out 6 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Mi 9 Lite
  • Slow-motion recording at 960FPS
  • 18% faster in single-core GeekBench 5 test: 390 and 330 points
  • Has a built-in infrared port
Reasons to consider the Samsung Galaxy M31
  • Comes with 1970 mAh larger battery capacity: 6000 vs 4030 mAh
  • More recent OS version: Android 11 versus 10
  • Supports Dolby Atmos sound technology
  • The phone is 6-months newer
  • The front-facing camera can record video at 4K

Review

Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation

Value for money

You can enter your local price of these phones (in USD or any other currency) and click on the "Calculate" button to see which one has a better value for money.
Price

Tests and specifications

Comparison table of technical specifications and tests
Phone:
vs

Display

Type AMOLED Super AMOLED
Size 6.39 inches 6.4 inches
Resolution 1080 x 2340 pixels 1080 x 2340 pixels
Aspect ratio 19.5:9 19.5:9
PPI 403 ppi 403 ppi
Refresh rate 60 Hz 60 Hz
HDR support Yes, HDR10 Yes, HDR10
Screen protection Corning Gorilla Glass 5 Corning Gorilla Glass 3
Screen-to-body ratio 85.8% 84%
Display features - Always-On Display
- DC Dimming
- Always-On Display
Display tests
RGB color space 95.8% 142%
PWM 240 Hz 208 Hz
Response time 3.4 ms 8.5 ms
Contrast ∞ Infinity ∞ Infinity
Max. Brightness
Mi 9 Lite +2%
634 nits
624 nits
Sources: NotebookCheck [1], [2]

Design and build

Height 156.8 mm (6.17 inches) 159.2 mm (6.27 inches)
Width 74.5 mm (2.93 inches) 75.1 mm (2.96 inches)
Thickness 8.7 mm (0.34 inches) 8.9 mm (0.35 inches)
Weight 179 gramm (6.31 oz) 191 gramm (6.74 oz)
Waterproof No No
Rear material Glass Plastic
Frame material Metal Plastic
Colors White, Black, Blue Black, Blue, Red
Fingerprint scanner Yes, in-display Yes, rear
Screen-to-body ratio
Mi 9 Lite +2%
85.8%

Performance

Tests of Xiaomi Mi 9 Lite and Samsung Galaxy M31 in the benchmarks
SoC
Chipset Qualcomm Snapdragon 710 Samsung Exynos 7 Octa 9611
Max. clock 2200 MHz 2300 MHz
CPU cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6 cores at 1.7 GHz: Kryo 360 Silver (Cortex-A55)
- 2 cores at 2.2 GHz: Kryo 360 Gold (Cortex-A75)
- 4 cores at 1.7 GHz: Cortex-A53
- 4 cores at 2.3 GHz: Cortex-A73
Lithography process 10 nanometers 10 nanometers
Graphics Adreno 616 Mali-G72 MP3
GPU clock 500 MHz 850 MHz
FLOPS ~384 GFLOPS ~259 GFLOPS
Memory
RAM size 6 GB 6 GB
Memory type LPDDR4X LPDDR4X
Memory clock 1866 MHz 1866 MHz
Channels 2 2
Storage
Storage size 64, 128 GB 128 GB
Storage type UFS 2.1 UFS 2.1
Memory card MicroSD MicroSD
Memory card max. size Up to 256 GB Up to 512 GB

Benchmarks

Geekbench 5 (Single-Core)
Mi 9 Lite +18%
390
Geekbench 5 (Multi-Core)
Mi 9 Lite +14%
1436
1264
AnTuTu Benchmark 7
Mi 9 Lite +65%
181199
109668
AnTuTu Benchmark 8
Mi 9 Lite +8%
202304
186574

Software

Operating system Android 9.0 (Can be upgraded to Android 10) Android 10 (Can be upgraded to Android 11)
ROM MIUI 12 One UI 3.1
OS size 13 GB 15 GB

Battery

Specifications
Capacity 4030 mAh 6000 mAh
Charge power 18 W 15 W
Battery type Li-Po Li-Ion
Replaceable No No
Wireless charging No No
Reverse charging No No
Fast charging Yes, Quick Charge 3.0 (50% in 35 min) Yes, Samsung Adaptive Fast Charge (45% in 60 min)
Full charging time 1:55 hr 2:25 hr

Battery life tests

Web browsing (Wi-Fi)
13:25 hr
Watching videos (Player)
17:10 hr
Talk (3G)
39:10 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 48 megapixels 64 megapixels
Image resolution 8000 x 6000 9248 x 6920
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording Up to 30FPS Up to 30FPS
1080p video recording Up to 60FPS Up to 30FPS
Slow motion 960 FPS (720p) 240 FPS (720p)
Angle of widest lens 118° 123°
Lenses 3 (48 MP + 8 MP + 2 MP) 4 (64 MP + 8 MP + 5 MP + 5 MP)
Wide (main) lens - 48 MP
- Aperture: f/1.8
- Pixel size: 0.8 micron
- Sensor: 1/2", Sony IMX586 (Exmor-RS CMOS)
- Phase autofocus
- 64 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/1.72", ISOCELL Bright GW1 (ISOCELL CMOS)
- Phase autofocus
Ultra-wide lens - 8 MP
- Aperture: f/2.2
- Pixel size: 1.12 micron
- 8 MP
- Aperture: f/2.2
- Focal length: 12 mm
- Pixel size: 1.12 micron
- Sensor: 1/4.0" (CMOS)
Macro lens - - 5 MP
- Aperture: f/2.2
Depth lens - 2 MP
- Aperture: f/2.4
- Pixel size: 1.75 micron
- 5 MP
- Aperture: f/2.2
- Pixel size: 1.12 micron
- Sensor: 1/5.0" (CMOS)
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
Selfie camera
Megapixels 32 megapixels 32 megapixels
Image resolution 6528 x 4896 6528 x 4896
Aperture f/2.0 f/2.0
Focal length - 26 mm
Pixel size 0.8 microns 0.8 microns
Sensor type ISOCELL Plus CMOS CMOS
Sensor size - 1/2.8"
Video resolution 1080p (Full HD) при 30 FPS 2160p (4K) при 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5
Bluetooth features LE, HID, A2DP PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB-Storage mode
- USB-Host mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou, Galileo
NFC* 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 No
Hybrid slot Yes No
LTE Cat* 12 12
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio Yes Yes
Dolby Atmos No Yes
Speakers test
Max. loudness
Mi 9 Lite +7%
87.4 dB
81.7 dB

Other

Category Mid-range Mid-range
Announced September 2019 February 2020
Release date September 2019 March 2020
Launch price ~ 262 USD ~ 250 USD
SAR (head) 1.42 W/kg 0.48 W/kg
SAR (body) 1.4 W/kg 1.13 W/kg
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the display, software, battery life, and sound are more important to you, then choose the Samsung Galaxy M31. But if the performance and design are more of a priority – go for the Xiaomi Mi 9 Lite.

Cast your vote

So, which phone would you choose?
26 (37.7%)
43 (62.3%)
Total votes: 69

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