Compare Karbonn A21 vs Karbonn A9 Plus vs Asus Zenfone 4

Summary
36
39
43
Performance

Dual core

1200 MHz, 512 MB RAM

Dual core

1200 MHz, 512 MB RAM

Dual core

1200 MHz, 1 GB RAM

Display

4.5" (Medium)

480x800, Avg sharpness

4" (Medium)

800x480, Avg sharpness

4.0" (Medium)

480x800, Avg sharpness

Camera

5 MP (Main)

1.3 MP (Front)

5 MP (Main)

1.30 MP (Front)

5 MP (Main)

0.3 MP (Front)

Battery

1800 mAh

5 h talktime (2G)

1420 mAh

4 h talktime (2G)

1600 mAh

Storage

4 GB

32 GB (Expandable)

4 GB

32 GB (Expandable)

8 GB

64 GB (Expandable)

General
Operating System

Android v4 (Ice Cream Sandwich)

Android v4 (Ice Cream Sandwich)

Android v4.3 (Jelly Bean)

SIM Slot(s)

Dual SIM, GSM+GSM

Dual SIM, GSM+GSM

Dual SIM, GSM+GSM

SIM Size

Micro

Performance
Good
Good
Good
Processor

Dual core, 1.2 GHz, Qualcomm Snapdragon

Dual core, 1.2 GHz, Qualcomm

Dual core, 1.2 GHz, Chipset: Intel Atom Z2520

Graphics Card

PowerVR SGX 544MP2

RAM

512 MB

512 MB

1 GB

Storage
Very Good
Very Good
Excellent
Internal Memory

4 GB

4 GB

8 GB

Expandable Memory

Yes, Up to 32 GB

Yes, Up to 32 GB

Yes, Up to 64 GB

USB OTG Support

Display
Fair
Good
Good
Screen Size

4.5 Inch

4 Inch

4.0 Inch

Screen Resolution

480 x 800 pixels

800 x 480 pixels

480 x 800 pixels

Pixel Density

207 ppi

233 ppi

233 ppi

Display Type

TFT

IPS LCD

LCD

Camera
Fair
Fair
Fair
Main Camera

Yes, 5 MP, Auto focus

Yes, 5 MP, Auto focus

Yes, 5 MP, Auto focus

Front Camera

Yes, 1.3 MP

Yes, 1.30 MP

Yes, 0.3 MP

Flash

LED

LED

Video Recording

1280x72

Full HD @ 30 FPS, HD @ 30 FPS

Zoom

Yes, Digital Zoom

Yes, Digital Zoom

Yes, Digital Zoom

Camera Features

Auto Focus

Auto Focus

Geo tagging

Battery
Good
Fair
Good
Capacity

1800 mAH, Li-ion

1420 mAH, Li-ion

1600 mAH, Li-Po

Talk Time

Up to 5 Hours(2G)

Up to 4 Hours(2G)

Stand By Time

Up to 200 Hours(2G)

Up to 4(2G)

Connectivity
Operating Frequency

GSM 1800 / 1900 / 900 MHz
UMTS 2100 MHz | GSM 1800 / 1900 / 900 MHz

GSM 1800 / 1900 / 850 / 900 MHz
UMTS 1900 / 2100 / 850 / 900 MHz | GSM 1800 / 1900 / 850 / 900 MHz

GPRS

Yes

Yes

Yes

Edge

Yes

Yes

Yes

3G

Yes, HSDPA 7.2 Mbit/s, HSUPA

Yes, HSPA , EV-DO , Rev.A

Yes, HSDPA 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Wi-Fi

Yes, Wi-Fi 802.11, b/g/n

Yes, Wi-Fi 802.11, b/g/n, Mobile Hotspot

Yes, Wi-Fi 802.11, b/g/n, Mobile Hotspot, Wi-Fi Direct

Bluetooth

Yes, v2.1, A2DP

Yes

Yes, v4.0, EDR, A2DP

GPS

Yes

Yes, with A-GPS

Yes, with A-GPS, Glonass, GPS

USB Connectivity

Yes, USB Port, USB 2.0, microUSB 2.0

Yes, USB Port

Yes, USB Port, USB 2.0, Mass storage device, USB charging, microUSB 2.0

More Connectivity

VoIP

Computer sync, OTA sync, Tethering

Design
Touch Screen

Yes, Capacitive Touchscreen, Multi-touch

Yes, Capacitive Touchscreen

Yes, Capacitive Touchscreen, Multi-touch

Weight

104 grams

105 grams

115 grams

Dimensions

112 x 60.5 x 11.5 mm

120 x 60.5 x 11.3 mm

124.4 x 61.4 x 11.5 mm

Colours

Stylus

Ruggedness

Multimedia
FM Radio

Yes

Yes, Stereo FM

Loudspeaker

Yes

Yes

Audio Jack

3.5 mm

3.5 mm

Price list

shopclues.com

Rs. 7,253

Apply coupon SCSMART91 to get this price.

   

maniacstore.com

Rs. 6,790
   

snapdeal.com

 
Rs. 9,999
 

thewirelesstoys.in

 
Rs. 5,900
 

ebay.in

   
Rs. 5,999

flipkart.com

   
Rs. 5,899
expert reviews
Karbonn A21 Review, Price, Specifications

Karbonn has been making news recently with its dual-core Android-based smartphones and the A21 is the latest entrant in its Android smartphone line-up....

customer reviews
Overall User Rating
★★★★★
★★★★★

3.4/5 based on 5 ratings

Sanjay Delhi
★★★★★
★★★★★
★★★★★
★★★★★
★★★★★
★★★★★

worth for the money.recommendable....

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★★★★★
★★★★★

4.2/5 based on 6 ratings

Sanjay Delhi
★★★★★
★★★★★
★★★★★
★★★★★
★★★★★
★★★★★

I bought this handset A9 plus an year back . Hardly used this for 3 months . It was with d service center for about 8 months ( 4 time submitted for repair in Jaipur . Even after changing the mother board the handset is not ok . My suggestion is not ....

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★★★★★
★★★★★

3.8/5 based on 4 ratings

Sanjay Delhi
★★★★★
★★★★★
★★★★★
★★★★★
★★★★★
★★★★★

I've been using zenfone 4 for the past month and here's what i noticed.. i'd like to differ with the site's review, the phone does have a FM radio. The camera is nice,touch is also good I've been using zenfone 4 for the past mo....

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