Samsung Galaxy M21 vs Samsung Galaxy M40 Specs Comparison

Availability

Officially announced
Mar 18, 2020	Jun 11, 2019

Design

Dimensions
6.26 x 2.96 x 0.35 inches 159.0 x 75.1 x 8.9 mm	6.11 x 2.91 x 0.31 inches 155.3 x 73.9 x 7.9 mm
Weight
6.63 oz / 188.0 g	5.93 oz / 168.0 g
Materials
Back: Plastic Frame: Plastic	Back: Plastic
Biometrics
2D Face unlock, Fingerprint (touch)	2D Face unlock, Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Midnight blue, Raven black	Midnight blue, Seawater blue

Display

Size
6.4-inch, 84.11% screen-to-body	6.3-inch, 84.94% screen-to-body
Type
Super AMOLED, 420 nits	IPS LCD
Resolution
2340x1080px, 19.5:9 ratio, 403 PPI	2340x1080px, 19.5:9 ratio, 409 PPI
Protection
Corning Gorilla Glass 3	Corning Gorilla Glass
Features
Scratch-resistant glass, Proximity sensor	Scratch-resistant glass, Proximity sensor

Hardware

System chip
Exynos 9611 (10 nm)	Snapdragon 675 SM6150 (11 nm)
Processor
Octa-core 4x2.3GHz Cortex-A73 4x1.7G​Hz Cortex-A53	Octa-core 2000 MHz Kryo 460
GPU
Mali-G72 MP3	Adreno 612
Memory
4GB (LPDDR4)/64GB 6GB/128GB	6GB (LPDDR4)/128GB
Storage expansion
microSDXC up to 512 GB	microSDXC up to 512 GB
OS
Android (11, 10)	Android (10, 9.0 Pie)

Battery

Type
6000 mAh, Li - Polymer	3500 mAh
Charging
Fast charging	Samsung Adaptive Fast Charging

Camera

Rear
Triple camera	Triple camera
Main camera
48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm	32 MP (PDAF) Aperture size: F1.7 Focal length: 27 mm Sensor size: 1/2.8" Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 12 mm Sensor size: 1/4" Pixel size: 1.12 μm	8 MP (Ultra-wide, PDAF) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
5 MP (Depth information) Aperture size: F2.2	5 MP (Depth information) Aperture size: F2.2 Focal Length: 24 mm Sensor size: 1/5" Pixel size: 1.12 μm
Flash
LED	LED
Video recording
4K UHD (30 fps), 1080p, 720p (240 fps) EIS	4K UHD (30 fps), 1080p (30 fps), 720p (240 fps) Hyperlapse, Video calling, Video sharing
Front
20 MP (HDR) Video capture: 1080p	16 MP (HDR) Video capture: 1080p

Connectivity & Features

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

Multimedia

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

Cellular

4G (FDD) Bands
1, 3, 5, 7, 8, 20	1, 3, 5, 8
4G (TDD) Bands
38, 40, 41	40, 41
3G Bands
1, 2, 5, 8	5, 8, 1
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A Cat 13/5 (400/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes	Yes
SIM type
Nano SIM	Nano SIM

Alternative variants

with 128GB storage

Memory	6GB/128GB

Links

Full specifications
Samsung Galaxy M21 Specs	Samsung Galaxy M40 Specs