Samsung Galaxy J6 vs Samsung Galaxy A40

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Display

Size

5.6 inches
5.9 inches

Resolution

1480 x 720 pixels, 18.5:9 ratio,
294 PPI
2340 x 1080 pixels, 19.5:9 ratio,
437 PPI

Technology

Super AMOLED
Super AMOLED

Screen-to-body

76.02 %
85.73 %

Features

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

Hardware & Performance

System chip

Samsung Exynos 7 Octa 7870
Exynos 7904

Processor

Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 1800 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm

GPU

Mali-T830 MP1
Mali-G71 MP2

RAM

3GB LPDDR3
4GB LPDDR4

Internal storage

32GB
64GB

Storage expansion

microSDXC up to 256 GB
microSDXC up to 512 GB

OS

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

Battery

Capacity

3000 mAh
3100 mAh

Type

Not user replaceable
Li - Polymer, Not user replaceable

Charging

 
Samsung Adaptive Fast Charging

Camera

Rear

Single camera
Dual camera

Main camera

13 MP (PDAF)
16 MP (PDAF)

Specifications

Aperture size: F1.9; Focal length: 27 mm; Sensor size: 1/3.06"; Pixel size: 1.12 μm
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

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

Features

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

Front

8 MP (Flash)
25 MP

Design

Dimensions

5.88 x 2.76 x 0.32 inches (149.3 x 70.2 x 8.2 mm)
5.69 x 2.72 x 0.31 inches (144.4 x 69.2 x 7.9 mm)

Weight

5.43 oz (154 g)
the average is 6.5 oz (184 g)
4.94 oz (140 g)
the average is 6.5 oz (184 g)

Materials

Back: Plastic
Back: Plastic; Frame: Plastic

Biometrics

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

Colors

Black, Gold, Purple, Blue
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), 17(700 b), 20(800 DD), 66(AWS-3)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)

LTE (TDD)

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

UMTS

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

Data Speed

LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, 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

VoLTE

Yes
 

Multimedia

Headphones

3.5mm jack
3.5mm jack

Features

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

Connectivity & Features

Bluetooth

4.2
5.0

Wi-Fi

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

USB

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

Features

Mass storage device, Charging
Charging, Mass storage device

Sensors

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

Other

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

Phone features

Notifications

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

Other features

Voice dialing, Voice commands, Voice recording
 

Shopping information

In The Box

Charger, microUSB cable, headset, Quick start guide, warranty cardand SIM ejector tool.
 
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