Xiaomi Mi 9 SE vs Samsung Galaxy A40 Specs Comparison

Design

Dimensions
5.81 x 2.78 x 0.29 inches 147.5 x 70.5 x 7.45 mm	5.69 x 2.72 x 0.31 inches 144.4 x 69.2 x 7.9 mm
Weight
5.47 oz (155.0 g)	4.94 oz (140.0 g)
Materials
	Back: Plastic Frame: Plastic
Biometrics
2D Face unlock, Optical in-screen fingerprint	2D Face unlock, Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Purple, Blue	Black, Coral, Blue, White

Display

Size
6.0-inch	5.9-inch
Resolution
2340x1080px, 19.5:9 ratio, 432 PPI	2340x1080px, 19.5:9 ratio, 437 PPI
Technology
AMOLED	Super AMOLED
Screen-to-body
83.96 %	85.73 %
Colors
16 777 216
Peak brightness
600 cd/m2 (nit)
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass), Ambient light sensor, Proximity sensor	Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 712 SDM712 (10 nm)	Exynos 7904 (14 nm)
Processor
Octa-core 2300 MHz Kryo 360	Octa-core 1800 MHz ARM Cortex-A73 and ARM Cortex-A53
GPU
Adreno 616	Mali-G71 MP2
RAM
6GB (LPDDR4)	4GB (LPDDR4)
Internal storage
128GB	64GB, available to use: 49.4 GB
Storage expansion
	microSDXC up to 512 GB
OS
Android (9.0 Pie)	Android (11, 10, 9.0 Pie), Samsung One UI

Battery

Capacity
3070 mAh	3100 mAh
Type
	Li - Polymer
Charging
	Samsung Adaptive Fast Charging

Camera

Rear
Triple camera	Dual camera
Main camera
48 MP (PDAF) Aperture size: F1.8 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm	16 MP (PDAF) Aperture size: F1.7 Focal length: 27 mm Sensor size: 1/2.8" Pixel size: 1.12 μm
Second camera
13 MP (Ultra-wide, PDAF) Aperture size: F2.4 Sensor size: 1/3.06" Pixel size: 1.12 μm	5 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/5" Pixel size: 1.12 μm
Third camera
8 MP (Telephoto, Autofocus) Aperture size: F2.4 Sensor size: 1/4" Pixel size: 1.12 μm
Flash
LED	LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (960 fps) EIS, Video calling, Video sharing	1920x1080 (Full HD) (30 fps) Hyperlapse, Video calling, Video sharing
Front
20 MP (HDR)	25 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0	Type-C, USB 2.0
Location
GPS, A-GPS, Glonass, Galileo, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass	Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other
NFC, Infrared, VoIP, Tethering, Computer sync, OTA sync	NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync

Multimedia

Headphones
No 3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
Album art cover, Background playback	Dolby Atmos, Album art cover, Background playback
Screen mirroring
Wireless screen share	Wireless screen share
Radio
	FM
Additional microphone(s)
	Noise cancellation

Cellular

4G (FDD)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900)	Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)
4G (TDD)
Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+)	Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 5(850), 8(900), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 5(850), 8(900)
Data Speed
LTE-A, HSPA, HSUPA	LTE-A Cat 12/13 (600/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes	Yes
SIM type
Nano SIM	Nano SIM
VoLTE
Yes

Phone Features

Notifications
Haptic feedback, Music ringtones, Vibration
Other features
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval
	Date approved: Mar 08, 2019 FCC ID value: A3LSMA405FN
Measured SAR
	Head: 0.51 W/kg Body: 0.46 W/kg Simultaneous Transmission: 1.02 W/kg Wireless Router: 0.61 W/kg

Availability

Officially announced
Feb 20, 2019	Apr 10, 2019

Links

Full specifications
Xiaomi Mi 9 SE Specs	Samsung Galaxy A40 Specs
User Reviews
	Samsung Galaxy A40 User Reviews