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Karbonn KT21 Express
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Phone Insight
Full Specifications September 4, 2026
Karbonn KT21 Express
Karbonn · 2012

Karbonn KT21 Express

Karbonn KT21 Express phone. Announced 2012. Features 2.8″ display, 3.15 MP primary camera, 1000 mAh battery.

Display 2.8"
Storage microSDHC slot
Camera 3 MP
Battery 1000 mAh
OS Feature phone

Launch

Announced 2012
Status Discontinued

Display

Type TFT
Size 2.8 inches, 24.3 cm 2
Resolution 240 x 320 pixels, 4:3 ratio

Memory

Card slot microSDHC (dedicated slot)
Phonebook 2000 entries
Call records Yes

Main Camera

Single 3.15 MP
Features LED flash
Video Yes

Selfie camera

cam2modules No

Body

Dimensions -
Weight -
SIM Dual SIM (Mini-SIM)

Battery

Type Li-Ion 1000 mAh, removable

Sound

Loudspeaker Yes
3.5mm jack Yes

Comms

WLAN No
Bluetooth 2.0
Positioning No
NFC No
Radio FM radio, recording
USB microUSB

Network

Technology No cellular connectivity
2G bands GSM - SIM 1 & SIM 2
GPRS Yes
EDGE Yes

Features

Sensors Proximity
Messaging SMS, MMS, Email
Games Yes
Java Yes
featuresother Audio/video player Photo viewer Organizer

Misc

Colors Black
Phone Insight phoneinsight.org/ Printed September 4, 2026

For live pricing, photos, and comparisons, visit phoneinsight.org/phones/karbonn-kt21-express/

In depth

Full specifications

Announced 2012
Status Discontinued
Type TFT
Size 2.8 inches, 24.3 cm 2
Resolution 240 x 320 pixels, 4:3 ratio
Card slot microSDHC (dedicated slot)
Phonebook 2000 entries
Call records Yes
Single 3.15 MP
Features LED flash
Video Yes
cam2modules No
Dimensions -
Weight -
SIM Dual SIM (Mini-SIM)
Type Li-Ion 1000 mAh, removable
Loudspeaker Yes
3.5mm jack Yes
WLAN No
Bluetooth 2.0
Positioning No
NFC No
Radio FM radio, recording
USB microUSB
Technology No cellular connectivity
2G bands GSM - SIM 1 & SIM 2
GPRS Yes
EDGE Yes
Sensors Proximity
Messaging SMS, MMS, Email
Games Yes
Java Yes
featuresother Audio/video player Photo viewer Organizer
Colors Black
Price About 40 EUR
PhoneInsight Benchmark
14.3/100
Basic

A specs-derived composite score, not a lab benchmark -- useful for ranking and comparison.

Processor 7
Display 38
Camera 28.8
Battery 27.7
109,711 hitsTotal views
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