Karbonn’s K331 B1 is an advanced level candy styled handset, with a dual card and dual standby support. Available in black and red, the handset sports a 1000 mAh battery with a handy talk time of around 9 hours and a great standby time of six hundred hours.
Its display is a QQVGA one, sporting a 1.8 inch screen and a maximum of 8 lines on the display. The default back light color of its keypad is blue. The handset works smoothly on GSM 900 and 1800 bands. However, the handset doesn’t support GSM 1900 and thus, there is no support of global roaming. Moreover, the handset supports some basic features like SMS, MMS, EMS and WAP.
Internal memory is limited to 1MB only. However, memory can be increased with the help of an external SD card, to up to 4GB. The handset supports dual cards, so 4GB each will make it a total of 8GB total memory support.