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Samsung Galaxy J7 vs Karbonn Alfa A90

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Rs. 8,999
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Rs. 1,499
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Summary
66%
Performance

Samsung Exynos 7 Octa 7580

1.5 GB RAM

512 MB RAM

Display

5.5" (13.97 cm)

720x1280 px (HD)

4.0" (10.16 cm)

480x800 px

Rear Camera

13 MP

Single Camera

2 MP

Single Camera

Front Camera

5 MP

Single Camera

1.3 MP

Single Camera

Battery

3000 mAh

18 h talktime (3G)

1400 mAh

Storage

16 GB

128 GB (Expandable)

4 GB

32 GB (Expandable)

User Rating

★★★★★
★★★★★

4.3/5 based on 40,499 ratings

★★★★★
★★★★★

3.6/5 based on 121 ratings

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General
Launch Date

July 16, 2015 (Official)

September 3, 2015 (Official)

Operating System

Android v5.1 (Lollipop)

Android v4.4 (Kitkat)

Performance
Average
Chipset

Samsung Exynos 7 Octa 7580

CPU

Octa core, 1.5 GHz, Cortex A53

Single core, 1 GHz

Architecture

64 bit

Graphics

Mali-T720 MP2

RAM

1.5 GB

512 MB

Display
Good
Screen to Body Ratio (calculated)

69.46 %

Screen Protection

No

No

Design
Size Compare
Dimensions

Height: 152.4 mm
Width: 78.6 mm
Thickness: 7.5 mm

Weight

171 grams

Colours

Black, Gold, White

Black, White

Camera
Main Camera
Camera Setup

Single

Single

Resolution

13 MP f/1.9, Primary Camera

2 MP, Primary Camera

Sensor

CMOS image sensor

Autofocus

OIS

No

No

Flash

, LED Flash

, Dual LED Flash

Image Resolution

4128 x 3096 Pixels

1600 x 1200 Pixels

Settings

Exposure compensation, ISO control

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)

Camera Features

Digital Zoom
Auto Flash
Face detection
Touch to focus

Digital Zoom

Video Recording

1920x1080 @ 30 fps

Front Camera
Good
Camera Setup

Single

Single

Resolution

5 MP f/2.2, Primary Camera

1.3 MP, Primary Camera

Autofocus

No

No

Flash

, LED Flash

No

Battery
Good
Capacity

3000 mAh

1400 mAh

Type

Li-ion

Li-ion

Removable

TalkTime

Up to 18 Hours(3G)

USB Type-C

No

No

Storage
Best in Class
Internal Memory

16 GB

4 GB

Expandable Memory

, Up to 128 GB

, Up to 32 GB

User Available Storage

Up to 11.6 GB

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, 3G, 2G

SIM 1

4G Bands:
TD-LTE 2300(band 40)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 800(band 20)
3G Bands:
UMTS 1900 / 2100 / 850 / 900 MHz
2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
4G Speed:
50 Mbit/s ↑ 150 Mbit/s ↓ (LTE category 4)
3G Speed:
HSDPA 21.1 Mbit/s ↓, HSUPA 5.76 Mbit/s ↑
GPRS:
Available
EDGE:
Available
Read More..

3G Bands:
UMTS 2100 MHz
2G Bands:
GSM 1800 / 900 MHz
GPRS:
Available
EDGE:
Available

SIM 2

4G Bands:
TD-LTE 2300(band 40)
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..

2G Bands:
GSM 1800 / 900 MHz

SAR Value

Head: 0.571 W/kg

Wi-Fi

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

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

Wi-Fi Features

Wi-Fi Direct, Mobile Hotspot

Mobile Hotspot

Bluetooth

, v4.1

, v4.0

GPS

with A-GPS, Glonass

with A-GPS

NFC

No

No

USB Connectivity

Mass storage device, USB charging, microUSB 2.0

microUSB 2.0

HDMI

No

Multimedia
FM Radio

Loudspeaker

Audio Jack

3.5 mm

3.5 mm

Sensors
Fingerprint Sensor

No

No

Other Sensors

Proximity sensor, Accelerometer

Accelerometer