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Samsung Galaxy A9 (2018) vs Samsung Galaxy A40

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

Display

Size:

6.3 inches
5.9 inches

Resolution:

2220 x 1080 pixels, 18.5:9 ratio, 392 PPI
2340 x 1080 pixels, 19.5:9 ratio, 437 PPI

Technology:

Super AMOLED
Super AMOLED

Screen-to-body:

80.51 %
85.73 %

Features:

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

Hardware

System chip:

Qualcomm Snapdragon 660 SDM660 (14 nm)
Exynos 7904 (14 nm)

Processor:

Octa-core, 2200 MHz, Kryo 260, 64-bit
Octa-core, 1800 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit

GPU:

Adreno 512
Mali-G71 MP2

RAM:

6GB LPDDR4
4GB LPDDR4

Internal storage:

128GB, available to use: 108.9 GB
64GB, available to use: 49.4 GB

Storage expansion:

microSDXC up to 512 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone

OS:

Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI
Android (11, 10, 9.0 Pie), Samsung One UI

Battery

Capacity:

3800 mAh
3100 mAh

Type:

Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable

Charging:

Samsung Adaptive Fast Charging
Samsung Adaptive Fast Charging

Camera

Rear:

Quad camera
Dual camera

Main camera:

24 MP (PDAF)
16 MP (PDAF)

Specifications:

Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.8"; Pixel size: 0.9 μm
Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.8"; Pixel size: 1.12 μm

Second camera:

10 MP (Telephoto, Autofocus)
5 MP (Ultra-wide)

Specifications:

Optical zoom: 2.0x; Aperture size: F2.4; Focal Length: 52 mm; Sensor size: 1/3.9"; Pixel size: 1 μm
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/5"; Pixel size: 1.12 μm

Third camera:

8 MP (Ultra-wide)

Specifications:

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

Fourth camera:

5 MP (Depth information)

Specifications:

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

Video recording:

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

Features:

Hyperlapse, Continuous autofocus, EIS, Video calling, Video sharing
Hyperlapse, Video calling, Video sharing

Front:

24 MP
25 MP

Video capture:

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

Design

Dimensions:

6.40 x 3.03 x 0.31 inches (162.5 x 77 x 7.8 mm)
5.69 x 2.72 x 0.31 inches (144.4 x 69.2 x 7.9 mm)

Weight:

6.46 oz (183.0 g)
4.94 oz (140.0 g)

Materials:

Back: Glass; Frame: Metal
Back: Plastic; Frame: Plastic

Biometrics:

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

Keys:

Left: Other; Right: Volume control, Lock/Unlock key; Back: Other
Right: Volume control, Lock/Unlock key

Colors:

Caviar black, Lemonade blue, Bubblegum pink
Black, Coral, Blue, White

Cellular

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)

LTE (TDD):

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

UMTS:

Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 5(850), 8(900)

Data Speed:

LTE-A Cat 9 (450/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA, UMTS
LTE-A Cat 12/13 (600/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Yes

SIM type:

Nano SIM
Nano SIM

Multimedia

Headphones:

3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

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

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; MIMO, 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, Mass storage device
Charging, Mass storage device

Location:

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

Sensors:

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

Other:

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

Regulatory Approval

FCC approval:

Date approved:

Oct 18, 2018
Mar 08, 2019

FCC ID value:

A3LSMA920F
A3LSMA405FN

Measured SAR:

Head:

0.24 W/kg
0.51 W/kg

Body:

0.84 W/kg
0.46 W/kg

Simultaneous Transmission:

1.58 W/kg
1.02 W/kg

Wireless Router:

1.40 W/kg
0.61 W/kg

Phablet:

3.95 W/kg

Buyers information

In The Box:

Charger, USB cable, Headphones, SIM removal tool, Documentation

Availability

Officially announced:

Oct 11, 2018
Apr 10, 2019
FCC OKs Cingular\'s purchase of AT&T Wireless