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Karbonn A40 Indian vs Lava A51

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Summary
39%
Performance

1 GB RAM

Spreadtrum SC7731G

512 MB RAM

Display

4.0" (10.16 cm)

480x800 px

4.5" (11.43 cm)

480x800 px

Rear Camera

2 MP

Single Camera

5 MP

Single Camera

Front Camera

0.3 MP

Single Camera

0.3 MP

Single Camera

Battery

1400 mAh

4 h talktime (2G)

1750 mAh

Storage

8 GB

32 GB (Expandable)

8 GB

32 GB (Expandable)

User Rating

★★★★★
★★★★★

3.4/5 based on 1,826 ratings

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★★★★★
★★★★★

3.6/5 based on 699 ratings

Read All User Reviews

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General
Launch Date

July 6, 2017 (Official)

November 11, 2016 (Official)

Operating System

Android v7.0 (Nougat)

Android v6.0 (Marshmallow)

Performance
Poor
Chipset

Spreadtrum SC7731G

CPU

Quad core, 1.3 GHz

Quad core, 1.2 GHz, Cortex A7

Graphics

Mali-400 MP2

RAM

1 GB

512 MB

Display
Below Average
Display Type

TFT

TFT

Screen Size

4.0 " (10.16 cm)

4.5 " (11.43 cm)

Resolution

480x800 px

480x800 px

Pixel Density

233 ppi

207 ppi

Screen to Body Ratio (calculated)

57.63 %

64.21 %

Touch Screen

, Capacitive Touchscreen

, Capacitive Touchscreen

Design
Size Compare
Size Compare
Dimensions

Height: 122.9 mm
Width: 64.3 mm
Thickness: 10.5 mm

Height: 136 mm
Width: 66 mm
Thickness: 9.8 mm

Weight

118 grams

Colours

Black, Blue, Coffee, Champagne Gold

Black, Gold

Camera
Main Camera
Camera Setup

Single

Single

Resolution

2 MP, Primary Camera

5 MP, Primary Camera

OIS

No

Flash

, LED Flash

, LED Flash

Image Resolution

1600 x 1200 Pixels

2592 x 1944 Pixels

Shooting Modes

High Dynamic Range mode (HDR)

Camera Features

Digital Zoom

Digital Zoom

Video Recording

1280x720 fps

Front Camera
Poor
Camera Setup

Single

Single

Resolution

0.3 MP, Primary Camera

0.3 MP, Primary Camera

Autofocus

No

No

Flash

No

No

Battery
Below Average
Capacity

1400 mAh

1750 mAh

Type

Li-ion

Li-ion

Removable

TalkTime

Up to 4 Hours(2G)

Standby time

Up to 200 Hours(2G)

USB Type-C

No

No

Storage
Very Good
Internal Memory

8 GB

8 GB

Expandable Memory

, Up to 32 GB

, Up to 32 GB

Network & Connectivity
SIM Slot(s)

Dual SIM, GSM+GSM

Dual SIM, GSM+GSM

Network Support

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

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

VoLTE

SIM 1

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

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

SIM 2

2G Bands:
GSM 1800 / 900 MHz

2G Bands:
GSM 1800 / 900 MHz

Wi-Fi

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

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

Wi-Fi Features

Mobile Hotspot

Mobile Hotspot

Bluetooth

, v4.0

, v2.1

GPS

with A-GPS

NFC

No

No

USB Connectivity

microUSB 2.0

microUSB 2.0

Multimedia
FM Radio

Loudspeaker

Audio Jack

3.5 mm

3.5 mm

Sensors
Fingerprint Sensor

No

No

Other Sensors

Accelerometer

Accelerometer

Price list

Not Available
Rs. 4,999
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