Samsung Galaxy A40 (SM-A405FN/DS) vs Samsung Galaxy M21s (SM-F415F/DS)

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Side by side comparison between Samsung Galaxy A40 vs Samsung Galaxy M21s phones, differences, pros, cons and full specifications. What's the better?

11/25/2020 11:20 AM, updated: 1/18/2023 4:22 AM

Compare Samsung Galaxy M21s X Samsung Galaxy A40 (SM-A405FN/DS) 09Points

Specifications Compare Models Pictures

5.9"
AMOLED

1080x2340

16
MP

25mp

4GB
RAM

Octa-core

3100
mAh

(Non removable)

09Points Samsung Galaxy M21s (SM-F415F/DS) Compare Samsung Galaxy A40 X

Specifications Compare Models Pictures

6.4"
AMOLED

1080x2340

64
MP

32mp

4GB
RAM

Octa-core

6000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A40 (SM-A405FN/DS)

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!

9 Advantages Samsung Galaxy A40 (SM-A405FN/DS)	vs	9 Advantages Samsung Galaxy M21s (SM-F415F/DS)
+140 grams (4.9 ounces)36% Lighter	vs	191 grams (6.69 ounces)
+7.9 millimeters (0.31 inches)13% Thinner	vs	8.9 millimeters (0.35 inches)
+437 PPI8% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	403 PPI
+f/1.7 (aperture)6% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/1.8 (aperture)
+(4G LTE-A) 600 Mbps100% Faster for surfing the internet and download files	vs	(4G LTE-A) 300 Mbps
+ANT+Advantage Sensors help you use the device	vs	Not supported
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
+USB 3.1 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.	vs	USB 2.0 Type-C reversible connector
1.8GHz 64bit Octa-core	vs	+2.3GHz 64bit Octa-core (10nm)31% More powerful processor, you can open your applications faster
eMMC 5.1	vs	+UFS 2.1Advantage Fastest write and read storage.
5.9"	vs	+6.4"8% Larger screen
(dual camera) 16MP + 5MP	vs	+(triple camera) 64MP + 8MP + 5MP3 times Higher resolution main camera
(front) 25MP	vs	+(front) 32MP28% Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)	vs	+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera
Android 9.0 Pie	vs	+Android 12Advantage Android 12 is newer and safer
3100 mAh	vs	+6000 mAh94% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supported	vs	+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys

31 Common items in both devices

4GB LPDDR4X

64GB (49GB available)

Until 1TB microSD, microSDXC / Until 512GB microSD, microSDXC

Plastic body, glass front

Super AMOLED

16 million

1080x2340 pixels

+24 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
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
Change model
Model	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
Other model names	Galaxy A40 SM-A405FN/Dual-Sim	Galaxy M21s SM-F415F/Dual-Sim (4GB RAM)
Country or region available	(Europe), (Global, International)	(Latin America), Brazil
Brand	Samsung	Samsung
Release date	4/10/2019	11/6/2020
Depth	7.9 millimeters (0.31 inches)	8.9 millimeters (0.35 inches)
Size (width x height)	69.2 x 144.4 millimeters (2.72 x 5.69 in)	75.1 x 159.2 millimeters (2.96 x 6.27 in)
Weight	140 grams (4.9 ounces)	191 grams (6.69 ounces)
Build, materials	Plastic body, glass front	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
Display type	Super AMOLED	Super AMOLED
Screen size	5.9" inches	6.4" inches
Screen-to-body ratio	~85.5% (screen-to-body ratio)	~84.1% (screen-to-body ratio)
Display resolution	1080x2340 pixels	1080x2340 pixels (19.5:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	437 PPI	403 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 3
Refresh rate	feature not registered	60Hz
Display features	feature not registered	420nits[peak]
🤖 Operating System
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
System version	Android 9.0 Pie	Android 10
Firmware update	feature not registered	Android 12
User Interface	feature not registered	One UI 2.5 / 3.1 / 4.1
⚙️ Processor
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
Chipset	64bit: Samsung Exynos 7 Octa 7885 (14nm)	64bit: Samsung Exynos 9611 (10nm)
CPU	Octa-core, 2 processors: 2x 1.8GHz ARM Cortex-A73 (Dual-core) 6x 1.6GHz ARM Cortex-A53 (Hexa-core)	Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	ARM Mali-G71 MP2	ARM Mali-G72 MP3 (850MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
RAM memory	4GB LPDDR4X	4GB LPDDR4X
Internal storage	64GB (49GB available) eMMC 5.1	64GB (49GB available) UFS 2.1
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Until 512GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	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	600/150 Mbps	300/50 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	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat12/13 (Bands 1, 3, 5, 7, 8, 20) TD-LTE (Bands 38, 40, 41)	LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, 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	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
Back camera (main camera)	(dual camera) 16 megapixels 5MP ultrawide f/2.213mmFF	(triple camera) 64 megapixels 8MP ultrawide f/2.2123°12mm1/4"1.12µm 5MP depth f/2.2
Main camera resolution	4608x3456 pixels	10120x6328 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/1.7 (aperture)	f/1.8 (aperture)
Focal length	26mm lens	26mm lens
Sensor size	feature not registered	1/1.72" inches
Pixel size	feature not registered	0.8µm pixel
Autofocus	PDAF: 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	Supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	4K@30fps 1080p@30fps
📸 Front camera
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
Front camera (secondary)	25 megapixels	32 megapixels
Front camera resolution	5760x4320 pixels	6528x4896 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	25mm lens	26mm lens
Sensor size	feature not registered	1/2.8" inches
Pixel size	feature not registered	0.8µm pixel
🔉 Sound and multimedia
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263, WMV, MKV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
USB	USB 3.1 Type-C, USB OTG On-The-Go	USB 2.0 Type-C reversible connector
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	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	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
Sensors	Accelerometer Ambient light sensor ANT+ Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3100 mAh	6000 mAh
Charger, watts	15W Wired fast charging	15W Wired fast charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	18 hours	48 hours (2 days)
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
Call control	Voice dialing, Voice recorder	Voice dialing, Voice recorder, Voice commands
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: Black, White, Blue, Coral • 19.5:9 display ratio FHD+ • One UI	• Colors: Black, Blue
☢️ Radiation rate
	Galaxy A40 (SM-A405FN/DS)	Galaxy M21s (SM-F415F/DS)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.383W/kg (head)
SAR 2W/kg (Europe, UK, etc.)	0.49W/kg (head), 1.34W/kg (body)	feature not registered