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O2 XDA Denim vs Samsung Galaxy A3 (2016) vs Samsung Galaxy A40

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

Comparison mode:

Display

Size:

2.6 inches
4.7 inches
5.9 inches

Resolution:

320 x 240 pixels, 154 PPI
1280 x 720 pixels, 312 PPI
2340 x 1080 pixels, 19.5:9 ratio, 437 PPI

Technology:

TFT
Super AMOLED
Super AMOLED

Screen-to-body:

32.78 %
69.30 %
85.73 %

Colors:

65 536
16 777 216

Touchscreen:

Resistive
Capacitive, Multi-touch

Features:

Scratch-resistant glass (Corning Gorilla Glass 4), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip:

Samsung Exynos 7 Quad 7578
Exynos 7904

Processor:

Single core, 520 MHz, Intel PXA270
Quad-core, 1500 MHz, ARM Cortex-A53, 64-bit
Octa-core, 1800 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm

GPU:

Mali-T720 MP2
Mali-G71 MP2

RAM:

0.06GB
1.5GB LPDDR3
4GB LPDDR4

ROM:

256 MB

Internal storage:

16GB, available to use: 10.7 GB
64GB, available to use: 49.4 GB

Storage expansion:

microSD
microSDXC up to 128 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Windows Mobile Professional (6.0)
Android (7.0 Nougat, 5.1 Lollipop)
Android (11, 10, 9.0 Pie), Samsung One UI

Battery

Capacity:

1300 mAh
2300 mAh
3100 mAh

Type:

Li - Polymer, User replaceable
Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable

Charging:

Samsung Adaptive Fast Charging

Camera

Rear:

Single camera
Single camera
Dual camera

Main camera:

2 MP (Autofocus)
13 MP (Autofocus)
16 MP (PDAF)

Specifications:

Aperture size: F1.9
Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.8"; Pixel size: 1.12 μm

Second camera:

5 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/5"; Pixel size: 1.12 μm

Video recording:

Yes
1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)

Features:

Video calling
Video calling, Video sharing
Hyperlapse, Video calling, Video sharing

Front:

Yes
5 MP
25 MP

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

4.52 x 2.19 x 0.71 inches (115 x 55.8 x 18.2 mm)
5.30 x 2.57 x 0.29 inches (134.5 x 65.2 x 7.3 mm)
5.69 x 2.72 x 0.31 inches (144.4 x 69.2 x 7.9 mm)

Weight:

5.29 oz (150.0 g)
4.66 oz (132.0 g)
4.94 oz (140.0 g)

Materials:

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

Biometrics:

2D Face unlock, Fingerprint (touch)

Features:

Stylus
Touch sensitive control keys

Keys:

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

Colors:

Black, Gold, Pink, White
Black, Coral, Blue, White

Cellular

LTE (FDD):

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

LTE (TDD):

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

UMTS:

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

Data Speed:

HSDPA 1.8 Mbit/s, UMTS
LTE Cat 4 (150/50 Mbit/s), HSPA, HSUPA
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:

2.5mm jack
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
FM

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

2.0
4.1
5.0

Wi-Fi:

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

USB:

USB 1.1
microUSB, USB 2.0
Type-C (reversible), USB 2.0

Features:

Mass storage device, Charging
Charging, Mass storage device

Location:

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

Sensors:

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

Other:

Computer sync
NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync
NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync

Phone features

Notifications:

Music ringtones (MP3), Polyphonic ringtones (192 voices), Vibration, Phone profiles, Speakerphone
Haptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone

Other features:

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

Regulatory Approval

FCC approval:

Date approved:

Jul 19, 2007
Mar 08, 2019

FCC ID value:

UJU9QDENIM000
A3LSMA405FN

Measured SAR:

Head:

1.36 W/kg
0.51 W/kg

Measured in:

1900 MHz

Body:

0.36 W/kg
0.46 W/kg

Measured in:

1900 MHz

Simultaneous Transmission:

1.02 W/kg

Wireless Router:

0.61 W/kg

Availability

Officially announced:

Dec 02, 2015
Apr 10, 2019
FCC OKs Cingular\'s purchase of AT&T Wireless