Notification Center

This is our new notification center. Inside, you will find updates on the most important things happening right now.

Notifications

Hmm, push notifications seem to be disabled in your browser. You can enable them from the 'Settings' icon in the URL bar of your browser.

www.phonearena.com

Samsung Galaxy M40 vs Samsung Galaxy M21

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

6.3 inches
6.4 inches

Resolution:

2340 x 1080 pixels, 19.5:9 ratio, 409 PPI
2340 x 1080 pixels, 19.5:9 ratio, 403 PPI

Technology:

IPS LCD
Super AMOLED

Screen-to-body:

84.94 %
84.11 %

Peak brightness:

420 cd/m2 (nit)

Features:

Scratch-resistant glass (Corning Gorilla Glass), Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 675 SM6150 (11 nm)
Exynos 9611 (10 nm)

Processor:

Octa-core, 2000 MHz, Kryo 460, 64-bit
Octa-core, 4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53, 64-bit

GPU:

Adreno 612
Mali-G72 MP3

RAM:

6GB LPDDR4
4GB LPDDR4

Internal storage:

128GB, available to use: 105 GB
64GB, available to use: 49 GB

Storage expansion:

microSDXC up to 512 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone

OS:

Android (10, 9.0 Pie), Samsung One UI
Android (11, 10), Samsung One UI

Battery

Capacity:

3500 mAh
6000 mAh

Type:

Not user replaceable
Li - Polymer, Not user replaceable

Charging:

Samsung Adaptive Fast Charging
Fast charging

Camera

Rear:

Triple camera
Triple camera

Main camera:

32 MP (PDAF)
48 MP (PDAF)

Specifications:

Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.8"; Pixel size: 0.8 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

8 MP (Ultra-wide, PDAF)
8 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera:

5 MP (Depth information)
5 MP (Depth information)

Specifications:

Aperture size: F2.2; Focal Length: 24 mm; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.2

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD), 1280x720 (HD) (240 fps)

Features:

Hyperlapse, Video calling, Video sharing
EIS

Front:

16 MP (HDR)
20 MP (HDR)

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)

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

Cellular

LTE (FDD):

Bands 1(2100), 3(1800), 5(850), 8(900)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)

LTE (TDD):

Bands 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)

UMTS:

Bands 5(850), 8(900), 1(2100)
Bands 1(2100), 2(1900), 5(850), 8(900)

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:

Shared with microSD
Yes

SIM type:

Nano SIM
Nano SIM

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):

for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
5.0

Wi-Fi:

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 (reversible), USB 2.0
Type-C (reversible), USB 2.0

Features:

Charging, Headphones port, Mass storage device
Charging

Location:

GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope

Other:

NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync

Buyers information

In The Box:

Type-C earphones, Data cable, 15W charger, User manual, Ejection pin
This is the official Samsu​ng Galaxy M21 User Guide in English provided from the manufacturer.

Availability

Officially announced:

Jun 11, 2019
Mar 18, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless