Samsung Galaxy S9 vs Samsung Galaxy M40

$323.45 VIEW ON AMAZON
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Display

Display size

5.8 inches
6.3 inches

Resolution

1440 x 2960 pixels
1080 x 2340 pixels

Pixel density

568 ppi
409 ppi

Technology

Super AMOLED
IPS LCD

Screen-to-body ratio

84.36 %
84.94 %

Features

HDR video support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass), Proximity sensor

Camera

Rear

Single camera
Triple camera

Main camera

12 megapixels
32 megapixels

Hardware Features

Optical image stabilization, Phase detection autofocus
Phase detection autofocus

Specifications

Aperture size: F1.5/F2.4; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.8"; Pixel size: 0.8 μm

Second camera

 
8 megapixels

Hardware Features

 
Ultra-wide, Phase detection autofocus

Specifications

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

Third camera

 
5 megapixels

Hardware Features

 
Depth information

Specifications

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

Flash

LED
LED

Video recording

3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps), 1280x720 (HD) (240 fps)

Features

High Dynamic Range mode (HDR), Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video calling, Video sharing
Hyperlapse, Video calling, Video sharing

Front

8 megapixels
16 megapixels

Features

Autofocus, High Dynamic Range mode (HDR)
High Dynamic Range mode (HDR)

Design

Dimensions

5.81 x 2.70 x 0.33 inches (147.7 x 68.7 x 8.5 mm)
6.11 x 2.91 x 0.31 inches (155.3 x 73.9 x 7.9 mm)

Weight

5.75 oz (163 g)
the average is 6 oz (172 g)
5.93 oz (168 g)
the average is 6 oz (172 g)

Materials

Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Back: Plastic

Resistance

Water, Dust; IP 68
 

Biometrics

Iris scanner, 2D Face unlock, Fingerprint (touch)
2D Face unlock, Fingerprint (touch)

Features

Notification light
 

Colors

Black, Gold, Gray, Purple, Blue, Red
 

Colors

 
Midnight blue, Seawater blue

Multimedia

Headphones

3.5 mm jack
USB Type-C (reversible)

Speakers

Earpiece, Multiple speakers
Earpiece, Loudspeaker

Features

Album art cover, Background playback
Album art cover, Background playback, Dolby Atmos

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
FM

Additional microphone(s)

 
for Noise cancellation

Hardware & Performance

System chip

Qualcomm Snapdragon 845 SDM845
Qualcomm Snapdragon 675 SM6150

Processor

Octa-core, 2800 MHz, Kryo 385, 64-bit, 10 nm
Octa-core, 2000 MHz, Kryo 460, 64-bit, 11 nm

GPU

Adreno 630
Adreno 612

RAM

4 GB
6 GB

Internal storage

256 GB
128 GB

Maximum User Storage

 
105 GB

Storage expansion

microSDXC up to 400 GB
microSDXC up to 512 GB

OS

Android (9.0 Pie, 8.0 Oreo), Samsung One UI
Android (9.0 Pie), Samsung One UI

Connectivity & Features

Bluetooth

5.0
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band; MIMO, Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; Hotspot, Wi-Fi Direct

USB

USB 3.1
USB 2.0

Connector

USB Type-C (reversible)
USB Type-C (reversible)

Features

Mass storage device, USB OTG, Video out
Mass storage device

Location

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

Sensors

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

Mobile Payment

Samsung Pay
 

Other

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

Cellular

LTE (FDD)

Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71
Bands 1, 3, 5, 8

LTE (TDD)

Bands 38, 39, 40, 41, 46
Bands 40, 41

UMTS

850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 2100 MHz

Data

LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA
LTE-A Cat 13/5 (400/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM

 
Yes

SIM type

Nano SIM
Nano SIM

Battery

Capacity

3000 mAh
3500 mAh

Type

Li - Ion, Not user replaceable
Not user replaceable

Charging

Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging
Samsung Adaptive Fast Charging

Talk time

31.00 hours
the average is 21 h (1288 min)
 

Stand-by time

3.4 days (82 hours)
the average is 19 days (457 h)
 

Talk time (4G)

 
29 hours

Internet use

3G: 11 hours; LTE: 12 hours; Wi-Fi: 14 hours
LTE: 14 hours; Wi-Fi: 14 hours

Music playback

51.00 hours
49.00 hours

Video playback

17.00 hours
12.00 hours

Phone features

Notifications

Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone
Haptic feedback, Music ringtones, Vibration

Other features

Voice dialing, Voice commands, Voice recording
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval

 
 

Date approved

Jan 11, 2018
 

FCC ID value: A3LSMG960U link
 

FCC measured SAR

 
 

Head

0.35 W/kg
 

Body

0.96 W/kg
 

Simultaneous Transmission

1.59 W/kg
 

Wireless Router

0.95 W/kg
 

Shopping information

In The Box

 
Type-C earphones, Data cable, 15W charger, User manual, Ejection pin

MSRP price

$ 820
 
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