Karbonn K309 mobile was launched in August 2012. The phone comes with a display offering a resolution of 176x220 pixels at a pixel density of 157 pixels per inch (ppi). Karbonn K309 is powered by an one-core processor.
The Karbonn K309 is a dual-SIM (GSM and GSM) mobile that accepts Regular and Regular cards.
Connectivity options on the Karbonn K309 include .
As of 5th December 2025, Karbonn K309 price in India starts at Rs. 1,166.
| Brand | Karbonn |
| Model | K309 |
| Price in India | ₹1,166 |
| Release date | August 2012 |
| Form factor | Bar |
| Removable battery | No |
| Touchscreen | No |
| Resolution | 176x220 pixels |
| Pixels per inch (PPI) | 157 |
| Processor | one-core |
| Processor make | |
| Expandable storage | No |
| Rear camera | No |
| Front camera | No |
| Wi-Fi | No |
| GPS | No |
| Bluetooth | No |
| NFC | No |
| Infrared | No |
| USB OTG | No |
| FM | No |
| Number of SIMs | 2 |
| Wi-Fi Direct | No |
| Mobile High-Definition Link (MHL) | No |
| SIM 1 | |
| SIM Type | Regular |
| GSM/CDMA | GSM |
| 3G | No |
| 4G/ LTE | No |
| Supports 4G in India (Band 40) | No |
| SIM 2 | |
| SIM Type | Regular |
| GSM/CDMA | GSM |
| 3G | No |
| 4G/ LTE | No |
| Supports 4G in India (Band 40) | No |
| Compass/ Magnetometer | No |
| Proximity sensor | No |
| Accelerometer | No |
| Ambient light sensor | No |
| Gyroscope | No |
| Barometer | No |
| Temperature sensor | No |