The TTfone TT240 is our first KaiOS enabled smart feature phone equipped with modern functionalities and apps for full convenience. It is unlocked, meaning you can simply insert your existing SIM card, which can be a Pay As You Go or contract SIM (except for the Three, ID, and Smarty networks). Please note that the TT240 does not support WhatsApp. This phone comes with Wi-Fi 4 connectivity and runs on the Android operating system.