Samsung Galaxy M40 vs Samsung Galaxy M21 Specs Comparison

Availability

Officially announced
Jun 11, 2019	Mar 18, 2020

Design

Dimensions
6.11 x 2.91 x 0.31 inches 155.3 x 73.9 x 7.9 mm	6.26 x 2.96 x 0.35 inches 159.0 x 75.1 x 8.9 mm
Weight
5.93 oz / 168.0 g	6.63 oz / 188.0 g
Materials
Back: Plastic	Back: Plastic Frame: 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, Seawater blue	Midnight blue, Raven black

Display

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

Hardware

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

Battery

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

Camera

Rear
Triple camera	Triple camera
Main camera
32 MP (PDAF) Aperture size: F1.7 Focal length: 27 mm Sensor size: 1/2.8" Pixel size: 0.8 μm	48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide, PDAF) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/4" Pixel size: 1.12 μm	8 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 12 mm Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
5 MP (Depth information) Aperture size: F2.2 Focal Length: 24 mm Sensor size: 1/5" Pixel size: 1.12 μm	5 MP (Depth information) Aperture size: F2.2
Flash
LED	LED
Video recording
4K UHD (30 fps), 1080p (30 fps), 720p (240 fps) Hyperlapse, Video calling, Video sharing	4K UHD (30 fps), 1080p, 720p (240 fps) EIS
Front
16 MP (HDR) Video capture: 1080p	20 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, Compass, Hall (for flip covers), Proximity sensor	Accelerometer, Gyroscope, Proximity sensor
Location
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync

Multimedia

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

Cellular

4G (FDD) Bands
1, 3, 5, 8	1, 3, 5, 7, 8, 20
4G (TDD) Bands
40, 41	38, 40, 41
3G Bands
5, 8, 1	1, 2, 5, 8
Data Speed
LTE-A Cat 13/5 (400/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A, 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 M40 Specs	Samsung Galaxy M21 Specs