Compare Karbonn A21 vs Micromax A100 vs Lava X81

Summary
72%
Display

4.5" (Medium)

480x800, Avg sharpness

5" (Medium)

480x854, Low sharpness

5.0" (Medium)

HD, Avg sharpness

Performance

Dual core

1.2 GHz, 512 MB RAM

Dual core

1 GHz, 512 MB RAM

Quad core

1.3 GHz, 3 GB RAM

Storage

4 GB

32 GB (Expandable)

4 GB

32 GB (Expandable)

16 GB

64 GB (Expandable)

Camera

5 MP (Main)

1.3 MP (Front)

5 MP (Main)

0.3 MP (Front)

13 MP (Main)

5 MP (Front)

Battery

1800 mAh

5 h talktime (2G)

2000 mAh

5 h talktime (2G)

2700 mAh

10 h talktime (3G)

Expert Rating
User Rating
General
Launch Date

October 11, 2012 (Official)

June 10, 2016 (Official)

Operating System

Android v4 (Ice Cream Sandwich)

Android v4 (Ice Cream Sandwich)

Android v6.0 (Marshmallow)

SIM Slot(s)

Dual SIM, GSM+GSM

Dual SIM, GSM+GSM

Dual SIM, GSM+GSM

SIM Size

SIM1: Micro
SIM2: Micro

Network

3G: Yes, 2G: Yes

3G: Yes, 2G: Yes

4G: Yes (supports Indian bands)
3G: Yes, 2G: Yes

Fingerprint Sensor

No

Quick Charging

No

Design
Size Compare
Size Compare
Size Compare
Dimensions

Height: 112 mm
Width: 60.5 mm
Thickness: 11.5 mm

Height: 142.2 mm
Width: 72.6 mm
Thickness: 11.90 mm

Height: 142.6 mm
Width: 73.4 mm
Thickness: 8.4 mm

Weight

104 grams

168 grams

Colours

Space Grey

Display
Good
Screen Resolution

480 x 800 pixels

480 x 854 pixels

HD (720 x 1280 pixels)

Pixel Density

207 ppi

196 ppi

294 ppi

Display Type

TFT

LCD

IPS LCD

Screen Protection

Corning Gorilla Glass v3

Touch Screen

Capacitive Touchscreen, Multi-touch

Capacitive Touchscreen, Multi-touch

Capacitive Touchscreen, Multi-touch

Screen to Body Ratio

65.69 %

Performance
Good
Chipset

Qualcomm Snapdragon S4 Play MSM8225

MediaTek MT6735

Processor

Dual core, 1.2 GHz, Cortex A5

Dual core, 1 GHz

Quad core, 1.3 GHz, Cortex A53

Architecture

64 bit

Graphics

Adreno 203

Adreno 200

Mali-T720 MP2

RAM

512 MB

512 MB

3 GB

Storage
Best in Class
Internal Memory

4 GB

4 GB

16 GB

Expandable Memory

Up to 32 GB

Up to 32 GB

Up to 64 GB

Camera
Very Good
Main Camera
Resolution

5 MP

5 MP

13 MP

Autofocus

Aperture

2.0 F

Optical Image Stabilisation

No

Flash

LED Flash

LED Flash

Dual LED Flash

Image Resolution

2592 x 1944 Pixels

2592 x 1944 Pixels

4128 x 3096 Pixels

Settings

Exposure compensation, ISO control

Shooting Modes

Continuos Shooting, High Dynamic Range mode (HDR)

Camera Features

Digital Zoom

Digital Zoom

Digital Zoom, Auto Flash, Face detection, Touch to focus

Video Recording

720x480 fps

1920x1080 @ 30 fps

Front Camera
Resolution

1.3 MP

0.3 MP

5 MP

Autofocus

No

Aperture

2.4 F

Flash

LED Flash

Camera Features

Fixed Focus

Battery
Very Good
Capacity

1800 mAh

2000 mAh

2700 mAh

Type

Li-ion

Li-ion

Li-Polymer

Not User Replaceable

No

Standby Time

Up to 200 Hours(2G)

Up to 180 Hours(2G)

Up to 300 Hours(2G)

Network & Connectivity
SIM Size

SIM1: Micro
SIM2: Micro

SIM 1

3G, 2G

3G, 2G

4G (supports Indian bands), 3G, 2G

SIM 2

2G

2G

2G

Bluetooth

v2.1

v3.0

v4.0

GPS

with A-GPS, Glonass

NFC

No

USB Connectivity

USB 2.0, microUSB 2.0

USB 2.0, microUSB

microUSB 2.0

Multimedia
FM Radio

Recording option

Loudspeaker

Audio Jack

3.5 mm

3.5 mm

3.5 mm

Special Features
Fingerprint Sensor

No

Other Sensors

Accelerometer

Accelerometer

Light sensor, Proximity sensor, Accelerometer

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