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Samsung Galaxy J7 Duo vs Karbonn K9 Music 4G

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Rs. 17,990
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Rs. 3,829
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Summary
75%
Performance

Samsung Exynos 7 Octa

4 GB RAM

1 GB RAM

Display

5.5" (13.97 cm)

720x1280 px (HD)

5.0" (12.7 cm)

480x854 px

Rear Camera

13 MP + 5 MP

Dual Camera

8 MP

Single Camera

Front Camera

8 MP

Single Camera

5 MP

Single Camera

Battery

3000 mAh

20 h talktime (3G)

2200 mAh

8 h talktime (2G)

Storage

32 GB

256 GB (Expandable)

16 GB

128 GB (Expandable)

User Rating

★★★★★
★★★★★

4.3/5 based on 3,202 ratings

★★★★★
★★★★★

3.7/5 based on 671 ratings

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Not Available in any store
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General
Launch Date

April 13, 2018 (Official)

December 21, 2017 (Official)

Operating System

Android v8.0 (Oreo)

Android v7.0 (Nougat)

Performance
Good
Chipset

Samsung Exynos 7 Octa

CPU

Octa core, 1.6 GHz

Quad core, 1.3 GHz

Fabrication

14 nm

RAM

4 GB

1 GB

RAM Type

LPDDR3

Display
Good
Display Type

Super AMOLED

TFT

Screen Size

5.5 " (13.97 cm)

5.0 " (12.7 cm)

Resolution

720x1280 px (HD)

480x854 px

Aspect Ratio

16:9

Pixel Density

267 ppi

196 ppi

Screen to Body Ratio (calculated)

70.21 %

66.92 %

Touch Screen

, Capacitive Touchscreen, Multi-touch

, Capacitive Touchscreen, Multi-touch

Design
Size Compare
Size Compare
Dimensions

Height: 153.5 mm
Width: 77.2 mm
Thickness: 8.2 mm

Height: 143.7 mm
Width: 71.5 mm
Thickness: 9.2 mm

Weight

174 grams

170 grams

Colours

Black, Gold

Blue, Champagne

Camera
Main Camera
Camera Setup

Dual

Single

Resolution

13 MP f/1.9, Primary Camera
5 MP f/1.9, Depth Camera

8 MP, Primary Camera

Autofocus

OIS

No

Flash

, LED Flash

, LED Flash

Image Resolution

4128 x 3096 Pixels

3264 x 2448 Pixels

Settings

Exposure compensation, ISO control

Exposure compensation

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)

Continuous Shooting
High Dynamic Range mode (HDR)

Camera Features

Digital Zoom
Auto Flash
Face detection
Touch to focus

Digital Zoom
Auto Flash
Face detection
Touch to focus

Video Recording

1920x1080 @ 30 fps

Front Camera
Very Good
Camera Setup

Single

Single

Resolution

8 MP f/1.9, Primary Camera

5 MP, Primary Camera

Autofocus

No

Flash

, LED Flash

No

Battery
Good
Capacity

3000 mAh

2200 mAh

Type

Li-ion

Li-ion

Removable

TalkTime

Up to 20 Hours(3G)

Up to 8 Hours(2G)

Standby time

Up to 180 Hours(2G)

USB Type-C

No

No

Storage
Best in Class
Internal Memory

32 GB

16 GB

Expandable Memory

, Up to 256 GB

, Up to 128 GB

User Available Storage

Up to 21.8 GB

USB OTG

Network & Connectivity
SIM Slot(s)

Dual SIM, GSM+GSM

Dual SIM, GSM+GSM

SIM Size

SIM1: Micro
SIM2: Micro

Network Support

5G Not Supported in India, 4G Supported in India, 3G, 2G

5G Not Supported in India, 4G Supported in India, 3G, 2G

VoLTE

SIM 1

4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5) / 800(band 20)
3G Bands:
UMTS 1900 / 2100 / 850 / 900 MHz
2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
GPRS:
Available
EDGE:
Available
Read More..

4G Bands:
TD-LTE 2300(band 40)
FD-LTE 1800(band 3) / 850(band 5)
3G Bands:
UMTS 2100 / 900 MHz
2G Bands:
GSM 1800 / 900 MHz
GPRS:
Available
EDGE:
Available

SIM 2

2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
GPRS:
Available
EDGE:
Available

2G Bands:
GSM 1800 / 900 MHz
GPRS:
Available
EDGE:
Available

SAR Value

Head: 0.478 W/kg

Wi-Fi

, Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz

, Wi-Fi 4 (802.11 b/g/n)

Wi-Fi Features

Wi-Fi Direct, Mobile Hotspot

Mobile Hotspot

Bluetooth

, v5.0

GPS

with A-GPS, Glonass

with A-GPS

NFC

No

No

USB Connectivity

Mass storage device, USB charging, microUSB 2.0

Mass storage device, USB charging, microUSB 2.0

Multimedia
FM Radio

Loudspeaker

Audio Jack

3.5 mm

3.5 mm

Sensors
Fingerprint Sensor

No

Fingerprint Sensor Position

Front

Other Sensors

Proximity sensor, Accelerometer

Light sensor, Proximity sensor, Accelerometer

Applications

Samsung Pay Mini