Xiaomi Mi 9 SE (128GB) vs Samsung Galaxy A40 (SM-A405FN/DS)

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Side by side comparison between Xiaomi Mi 9 SE vs Samsung Galaxy A40 phones, differences, pros, cons and full specifications. What's the better?

4/30/2019 8:57 PM, updated: 1/25/2023 4:06 AM

Compare Samsung Galaxy A40 X Xiaomi Mi 9 SE (128GB) 15Points

Specifications Compare Models Pictures

5.97"
AMOLED

1080x2340

48
MP

20mp

6GB
RAM

Octa-core

3070
mAh

(Non removable)

11Points Samsung Galaxy A40 (SM-A405FN/DS) Compare Xiaomi Mi 9 SE X

Specifications Compare Models Pictures

5.9"
AMOLED

1080x2340

16
MP

25mp

4GB
RAM

Octa-core

3100
mAh

(Non removable)

What's the better phone? Xiaomi Mi 9 SE (128GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

15 Advantages Xiaomi Mi 9 SE (128GB)	vs	11 Advantages Samsung Galaxy A40 (SM-A405FN/DS)
+2.3GHz 64bit Octa-core (10nm)47% More powerful processor, you can open your applications faster	vs	1.8GHz 64bit Octa-core
+6GB LPDDR4X50% More RAM memory. Typically more responsive and better for multitasking.	vs	4GB LPDDR4X
+128GB (109GB available)122% More internal storage for applications and files	vs	64GB (49GB available)
+UFS 2.0Advantage Fastest write and read storage.	vs	eMMC 5.1
+7.45 millimeters (0.29 inches)6% Thinner	vs	7.9 millimeters (0.31 inches)
+Aluminum frame, glass front/backAdvantage More resistant material	vs	Plastic body, glass front
+5.97"1% Larger screen	vs	5.9"
+(triple camera) 48MP + 13MP + 8MP2 times Higher resolution main camera	vs	(dual camera) 16MP + 5MP
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+Android 11Advantage Android 11 is newer and safer	vs	Android 9.0 Pie
+(4G LTE-A) 800 Mbps33% Faster for surfing the internet and download files	vs	(4G LTE-A) 600 Mbps
+18W20% More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.	vs	15W
+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.	vs	Not supported
+Gorilla Glass 5Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
Not supported	vs	+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards
155 grams (5.43 ounces)	vs	+140 grams (4.9 ounces)11% Lighter
432 PPI	vs	+437 PPI1% Crisper display of text, images and videos because it has more pixels per inch (ppi)
f/1.8 (aperture)	vs	+f/1.7 (aperture)6% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 20MP	vs	+(front) 25MP25% Higher resolution secondary camera to take pictures and selfies
Not supported	vs	+ANT+Advantage Sensors help you use the device
Virtual proximity sensor	vs	+Proximity sensorAdvantage Sensors help you use the device
3070 mAh	vs	+3100 mAh1% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Type-C jack with 3.5mm jack adapter	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores
Not supported	vs	+FMAdvantage The radio lets you listen to your songs and sports in general
USB 2.0 Type-C, USB OTG On-The-Go	vs	+USB 3.1 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.

24 Common items in both devices

Super AMOLED

16 million

1080x2340 pixels

Only digital zoom

LDAF/PDAF: laser/phase detection autofocus / PDAF: phase detection autofocus

EIS: Digital stabilization

HDR photo on both cameras

+17 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
Change model		Choose the model
Model	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
Other model names	小米9 SE M1903F2G, M1903F2A, Xiaomi Grus	Galaxy A40 SM-A405FN/Dual-Sim
Country or region available	(Global, International), China	(Europe), (Global, International)
Brand	Xiaomi	Samsung
Release date	3/1/2019, Announced: 2/20/2019	4/10/2019
Depth	7.45 millimeters (0.29 inches)	7.9 millimeters (0.31 inches)
Size (width x height)	70.5 x 147.5 millimeters (2.78 x 5.81 in)	69.2 x 144.4 millimeters (2.72 x 5.69 in)
Weight	155 grams (5.43 ounces)	140 grams (4.9 ounces)
Build, materials	Aluminum frame, glass front/back	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
Display type	Super AMOLED	Super AMOLED
Screen size	5.97" inches	5.9" inches
Screen-to-body ratio	~84.1% (screen-to-body ratio)	~85.5% (screen-to-body ratio)
Display resolution	1080x2340 pixels (19.5:9)	1080x2340 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	432 PPI	437 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Not supported
Refresh rate	60Hz	feature not registered
Display features	HDR8	feature not registered
🤖 Operating System
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
System version	Android 9.0 Pie	Android 9.0 Pie
Firmware update	Android 11	feature not registered
User Interface	MIUI 10 / 11 / 12.5	feature not registered
⚙️ Processor
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
Chipset	64bit: Qualcomm Snapdragon 712 (SDM712) (10nm)	64bit: Samsung Exynos 7 Octa 7885 (14nm)
CPU	Octa-core, 2 processors: 2x 2.3GHz Kryo 360 Gold (Dual-core) 6x 1.7GHz Kryo 360 Silver (Hexa-core)	Octa-core, 2 processors: 2x 1.8GHz ARM Cortex-A73 (Dual-core) 6x 1.6GHz ARM Cortex-A53 (Hexa-core)
GPU graphical controller	Qualcomm Adreno 616 (610MHz)	ARM Mali-G71 MP2
Performance (benchmark)	AnTuTu: 180057 (v7) Geekbench: 6017 (v4.4) GFXBench: 14fps (ES 3.1 onscreen)	feature not registered
💽 Memory and storage
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
RAM memory	6GB LPDDR4X	4GB LPDDR4X
Internal storage	128GB (109GB available) UFS 2.0	64GB (49GB available) eMMC 5.1
External storage	Not supported	Until 1TB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	800/150 Mbps	600/150 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	CDMA 800, GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat15 (1, 3, 5, 7, 8) TD-LTE (34, 38, 39, 40, 41) VoLTE	LTE Cat12/13 (Bands 1, 3, 5, 7, 8, 20) TD-LTE (Bands 38, 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	UMTS 850/900/1900/2100	Not supported
Secondary 4G network	LTE Cat15 (1, 3, 5, 7, 8) TD-LTE (34, 38, 39, 40, 41) VoLTE	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE
📷 Camera
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
Back camera (main camera)	(triple camera) 48 megapixels 13MP ultrawide f/2.41.12µm 8MP telephoto f/2.41.12µmPDAF	(dual camera) 16 megapixels 5MP ultrawide f/2.213mmFF
Main camera resolution	8000x6000 pixels	4608x3456 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	Full HD (1920x1080) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/1.7 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	1/2" inches	feature not registered
Pixel size	0.8µm pixel	feature not registered
Autofocus	LDAF/PDAF: laser/phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
Front camera (secondary)	20 megapixels	25 megapixels
Front camera resolution	5184x3840 pixels	5760x4320 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	25mm lens
Sensor size	feature not registered	feature not registered
Pixel size	0.9µm pixel	feature not registered
🔉 Sound and multimedia
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
Loudspeaker	Mono sound (not stereo)	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	Not supported	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.264, H.263, WMV, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 3.1 Type-C, USB OTG On-The-Go
Audio output	Type-C jack with 3.5mm jack adapter	3.5mm jack
TV output	USB Type-C (reversible)	Not supported
Bluetooth	5.0 + A2DP/LE	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Supported	Supported
Infrared port	Supported	Not supported
🧭 Sensors
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Virtual proximity sensor	Accelerometer Ambient light sensor ANT+ Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3070 mAh	3100 mAh
Charger, watts	18W Wired fast charging	15W Wired fast charging
Inductive / wireless charging	Not supported	feature not registered
Talk time autonomy	feature not registered	18 hours
Standby	feature not registered	feature not registered
➕ Other features
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Gray, Violet, Blue	• Colors: Black, White, Blue, Coral • 19.5:9 display ratio FHD+ • One UI
☢️ Radiation rate
	Xiaomi Mi 9 SE (128GB)	Galaxy A40 (SM-A405FN/DS)
SAR 1.6W/kg (USA, Mexico, etc.)	1.39W/kg (head), 1.39W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	1.19W/kg (head), 1.17W/kg (body)	0.49W/kg (head), 1.34W/kg (body)