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Xiaomi Mi A3 vs Mi 9 SE

Here we compared two mid-range smartphones: the 6.01-inch Xiaomi Mi A3 (with Qualcomm Snapdragon 665) that was released on July 4, 2019, against the Xiaomi Mi 9 SE, which is powered by Qualcomm Snapdragon 712 and came out 4 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 A3
  • Shows 38% longer battery life (101 vs 73 hours)
  • Comes with 960 mAh larger battery capacity: 4030 vs 3070 mAh
  • Expandable storage via MicroSD card up to 256GB
  • Includes a 3.5 mm headphone audio jack port
Reasons to consider the Xiaomi Mi 9 SE
  • Delivers 75% higher maximum brightness (643 against 367 nits)
  • 53% higher pixel density (432 vs 282 PPI)
  • The rear camera has a 2x optical zoom
  • 26% better performance in AnTuTu Benchmark (227K versus 181K)
  • More recent OS version: Android 11 versus 10
  • Slow-motion recording at 960FPS
  • Faster storage type - UFS 2.1 versus UFS 2.0
  • 38% faster in single-core GeekBench 5 test: 418 and 302 points
  • Weighs 18 grams less

Review

Display
Screen quality, color accuracy, brightness
56
70
Performance
CPU/GPU performance in apps and games
41
46
Battery
Battery life, charging type and speed
74
60
Camera
Photo and video recording quality
62
67
Connectivity
Networks, ports, data transmission
72
77
NanoReview score
Final comparison evaluation
59
62

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 Super AMOLED AMOLED
Size 6.01 inches 5.97 inches
Resolution 720 x 1560 pixels 1080 x 2340 pixels
Aspect ratio 19.5:9 19.5:9
PPI 282 ppi 432 ppi
Refresh rate 60 Hz 60 Hz
HDR support No Yes, HDR10
Screen protection Corning Gorilla Glass 5 Corning Gorilla Glass 5
Screen-to-body ratio 82.77% 84.1%
Display features - Always-On Display
- DC Dimming
- Always-On Display
Display tests
RGB color space - 99.9%
PWM - 255 Hz
Response time - 4.2 ms
Contrast - ∞ Infinity
Max. Brightness
367 nits
Mi 9 SE +75%
643 nits
Sources: NotebookCheck [1]

Design and build

Height 153.5 mm (6.04 inches) 147.5 mm (5.81 inches)
Width 71.9 mm (2.83 inches) 70.5 mm (2.78 inches)
Thickness 8.5 mm (0.33 inches) 7.4 mm (0.29 inches)
Weight 173 gramm (6.1 oz) 155 gramm (5.47 oz)
Waterproof No No
Rear material Glass Glass
Frame material Plastic Metal
Colors White, Gray, Blue Gray, Blue, Purple
Fingerprint scanner Yes, in-display Yes, in-display
Screen-to-body ratio
82.77%
Mi 9 SE +2%
84.1%

Performance

Tests of Xiaomi Mi A3 and Xiaomi Mi 9 SE in the benchmarks
SoC
Chipset Qualcomm Snapdragon 665 Qualcomm Snapdragon 712
Max. clock 2000 MHz 2200 MHz
CPU cores 8 (4 + 4) 8 (2 + 6)
Architecture - 4 cores at 1.8 GHz: Kryo 260 Silver (Cortex-A53)
- 4 cores at 2 GHz: Kryo 260 Gold (Cortex-A73)
- 6 cores at 1.7 GHz: Kryo 360 Silver (Cortex-A55)
- 2 cores at 2.3 GHz: Kryo 360 Gold (Cortex-A75)
L3 cache - 1 MB
Lithography process 11 nanometers 10 nanometers
Graphics Adreno 610 Adreno 616
GPU clock 600 MHz 550 MHz
FLOPS ~273 GFLOPS ~310 GFLOPS
Memory
RAM size 4, 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 2.0 UFS 2.1
Memory card MicroSD No
Memory card max. size Up to 256 GB -

Benchmarks

Geekbench 5 (Single-Core)
302
Mi 9 SE +38%
418
Geekbench 5 (Multi-Core)
1124
Mi 9 SE +33%
1496
AnTuTu Benchmark 7
170744
Mi 9 SE +5%
179431
AnTuTu Benchmark 8
181058
Mi 9 SE +26%
227497

Software

Operating system Android 9.0 (Can be upgraded to Android 10) Android 9.0 (Can be upgraded to Android 11.0)
ROM Android One MIUI 12
OS size - 19 GB

Battery

Specifications
Capacity 4030 mAh 3070 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 3.0 (45% in 30 min) Yes, Quick Charge 4 (50% in 30 min)
Full charging time 2:30 hr 1:27 hr

Battery life tests

Web browsing (Wi-Fi)
Mi A3 +21%
12:35 hr
10:19 hr
Watching videos (Player)
Mi A3 +48%
21:22 hr
14:37 hr
Talk (3G)
Mi A3 +22%
30:48 hr
25:00 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 48 megapixels 48 megapixels
Image resolution 8000 x 6000 8000 x 6000
Zoom Digital Optical, 2x
Flash 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 120FPS Up to 60FPS
Slow motion 480 FPS (720p) 960 FPS (720p)
Angle of widest lens 118° 123°
Lenses 3 (48 MP + 8 MP + 2 MP) 3 (48 MP + 8 MP + 13 MP)
Wide (main) lens - 48 MP
- Aperture: f/1.8
- Pixel size: 0.8 micron
- Sensor: 1/2", Sony IMX586 (CMOS)
- Phase autofocus
- 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
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 - 8 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1.12 micron
- Sensor: 1/4" (CMOS)
- 13 MP
- Aperture: f/2.4
- Pixel size: 1.12 micron
- Sensor: 1/3.1", Samsung S5K3L6 (ISOCELL CMOS)
Depth lens - 2 MP
- Aperture: f/2.4
-
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
Selfie camera
Megapixels 32 megapixels 20 megapixels
Image resolution 6816 x 4735 5120 x 3840
Aperture f/2.0 f/2.0
Focal length - 18 mm
Pixel size 0.8 microns 0.9 microns
Sensor type ISOCELL CMOS BSI CMOS
Sensor size 1/2.8" 1/2.78"
Video resolution 1080p (Full HD) при 30 FPS 1080p (Full HD) 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 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* No Yes
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 Yes No
LTE Cat* 6 15
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack Yes No
FM radio Yes No
Dolby Atmos No No
Speakers test
Max. loudness
81.9 dB
81.5 dB

Other

Category Mid-range Mid-range
Announced July 2019 February 2019
Release date August 2019 March 2019
Launch price ~ 212 USD ~ 424 USD
SAR (head) 0.3 W/kg 1.39 W/kg
SAR (body) 1.1 W/kg 1.39 W/kg
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Hall-effect sensor
- Barometer
- 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, performance, software, camera, connectivity, and design are more important to you, then choose the Xiaomi Mi 9 SE. But if the battery life and sound are more of a priority – go for the Xiaomi Mi A3.

Cast your vote

So, which phone would you choose?
8 (29.6%)
19 (70.4%)
Total votes: 27

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