Home > Smartphone comparison > Mi 9 SE vs Mi 8 SE – which one to choose?

Xiaomi Mi 9 SE vs Mi 8 SE

Here we compared two mid-range smartphones: the 5.97-inch Xiaomi Mi 9 SE (with Qualcomm Snapdragon 712) that was released on February 20, 2019, against the Xiaomi Mi 8 SE, which is powered by Qualcomm Snapdragon 710 and came out 10 months before. 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 SE
  • The rear camera has a 2x optical zoom
  • Delivers 39% higher maximum brightness (637 against 459 nits)
  • Slow-motion recording at 960FPS
  • 16% better performance in AnTuTu Benchmark (222K versus 191K)
  • Has an ultra-wide angle camera lens
  • The phone is 10-months newer
Reasons to consider the Xiaomi Mi 8 SE
  • Shows 18% longer battery life (86 vs 73 hours)
  • More recent OS version: Android 10 versus 9

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 AMOLED
Size 5.97 inches 5.88 inches
Resolution 1080 x 2340 pixels 1080 x 2244 pixels
Aspect ratio 19.5:9 18.7:9
PPI 432 ppi 424 ppi
Refresh rate 60 Hz 60 Hz
HDR support Yes, HDR10 Yes, HDR10
Screen protection Corning Gorilla Glass 5 Corning Gorilla Glass 5
Screen-to-body ratio 84.1% 81.23%
Display features - Always-On Display - Always-On Display
Display tests
RGB color space 99.9% -
PWM 255 Hz -
Response time 4.2 ms -
Contrast ∞ Infinity -
Max. Brightness
Mi 9 SE +39%
637 nits
459 nits
Sources: NotebookCheck [1]

Design and build

Height 147.5 mm (5.81 inches) 147.2 mm (5.8 inches)
Width 70.5 mm (2.78 inches) 73 mm (2.87 inches)
Thickness 7.4 mm (0.29 inches) 7.5 mm (0.3 inches)
Weight 155 gramm (5.47 oz) 164 gramm (5.78 oz)
Waterproof No No
Rear material Glass Glass
Frame material Metal Metal
Colors Gray, Blue, Purple Gold, Gray, Blue, Red
Fingerprint scanner Yes, in-display Yes, rear
Screen-to-body ratio
Mi 9 SE +4%
84.1%
81.23%

Performance

Tests of Xiaomi Mi 9 SE and Xiaomi Mi 8 SE in the benchmarks
SoC
Chipset Qualcomm Snapdragon 712 Qualcomm Snapdragon 710
Max. clock 2200 MHz 2200 MHz
CPU cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6 cores at 1.7 GHz: Kryo 360 Silver (Cortex-A55)
- 2 cores at 2.3 GHz: Kryo 360 Gold (Cortex-A75)
- 6 cores at 1.7 GHz: Kryo 360 Silver (Cortex-A55)
- 2 cores at 2.2 GHz: Kryo 360 Gold (Cortex-A75)
L3 cache 1 MB -
Lithography process 10 nanometers 10 nanometers
Graphics Adreno 616 Adreno 616
GPU clock 550 MHz 500 MHz
FLOPS ~310 GFLOPS ~384 GFLOPS
Memory
RAM size 6 GB 4, 6 GB
Memory type LPDDR4X LPDDR4X
Memory clock 1866 MHz 1866 MHz
Channels 2 2
Storage
Storage size 128 GB 64, 128 GB
Storage type UFS 2.1 UFS 2.1
Memory card No No

Benchmarks

Geekbench 5 (Single-Core)
Mi 9 SE +1%
410
405
Geekbench 5 (Multi-Core)
1490
Mi 8 SE +2%
1519
AnTuTu Benchmark 8
Mi 9 SE +16%
222149
191034
AnTuTu Benchmark Ranking (258th and 297th place)

Software

Operating system Android 9.0 Android 8.1 (Can be upgraded to Android 10)
ROM MIUI 12 MIUI 12
OS size 19 GB -

Battery

Specifications
Capacity 3070 mAh 3120 mAh
Charge power 18 W 18 W
Battery type Li-Po Li-Po
Replaceable No No
Wireless charging No No
Reverse charging No No
Fast charging Yes, Quick Charge 4 (50% in 30 min) Yes, Quick Charge 3.0 (50% in 35 min)
Full charging time 1:27 hr 1:40 hr

Battery life tests

Web browsing (Wi-Fi)
10:19 hr
Mi 8 SE +49%
15:18 hr
Watching videos (Player)
Mi 9 SE +58%
14:37 hr
9:08 hr
Talk (3G)
Mi 9 SE +17%
25:00 hr
21:42 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 48 megapixels 12 megapixels
Image resolution 8000 x 6000 4000 x 3000
Zoom Optical, 2x Digital
Flash Dual LED Dual 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 120FPS
Slow motion 960 FPS (720p) 240 FPS (720p)
Angle of widest lens 123° -
Lenses 3 (48 MP + 8 MP + 13 MP) 2 (12 MP + 5 MP)
Wide (main) lens - 48 MP
- Aperture: f/1.8
- Focal length: 27 mm
- Pixel size: 0.8 micron
- Sensor: 1/2", Sony IMX586 (Exmor-RS CMOS)
- Phase autofocus
- 12 MP
- Aperture: f/1.9
- Pixel size: 1.4 micron
- Sensor: 1/2.55", Sony IMX363 (Exmor-RS CMOS)
- Phase autofocus (Dual Pixel)
Telephoto lens - 8 MP
- Aperture: f/2.4
- Focal length: 52 mm
- Pixel size: 1.12 micron
- Sensor: 1/4", Omnivision OV8856
- Phase autofocus
-
Ultra-wide lens - 13 MP
- Aperture: f/2.4
- Pixel size: 1.12 micron
- Sensor: 1/3.1", Samsung S5K3L6 (ISOCELL CMOS)
-
Depth lens - - 5 MP
- Aperture: f/2.0
- Pixel size: 1.12 micron
- Sensor: 1/5", Samsung S5K5E8 (ISOCELL CMOS)
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
Selfie camera
Megapixels 20 megapixels 20 megapixels
Image resolution 5120 x 3840 5120 x 3840
Aperture f/2.0 f/2.0
Focal length 18 mm -
Pixel size 0.9 microns 1 microns
Sensor type BSI CMOS ISOCELL CMOS
Sensor size 1/2.78" 1/2.8"
Video resolution 1080p (Full HD) при 30 FPS 1080p (Full HD) при 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 a/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, A2DP LE, 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
- USB-Host mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou, Galileo
NFC* Yes No
Infrared port Yes Yes
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No No
Hybrid slot No No
LTE Cat* 15 18
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack No No
FM radio No No
Dolby Atmos No No
Speakers test
Max. loudness
81.5 dB
Mi 8 SE +4%
85 dB

Other

Category Mid-range Mid-range
Announced February 2019 May 2018
Release date March 2019 June 2018
Launch price ~ 424 USD ~ 313 USD
SAR (head) 1.39 W/kg -
SAR (body) 1.39 W/kg -
Sensors - Hall-effect sensor
- Barometer
- 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, camera, and design are more important to you, then choose the Xiaomi Mi 9 SE. But if the software is more of a priority – go for the Xiaomi Mi 8 SE.

Cast your vote

So, which phone would you choose?
7 (50%)
7 (50%)
Total votes: 14

User opinions

You can share your opinion or ask a question in the comments below