Connectivity options include 2G/3G/4G compatibility, and Bluetooth 4.0.
On the software front, the One runs a custom version of CyanogenMod, 11S, which is based on KitKat (Android 4.4). Since CyanogenMod is highly customizable users will be able to apply any theme and icon set they wish. A unique privacy feature of CyanogenMod comes in form of support for SMS encryption between the One and other phones running CyanogenMod, or other TextSecure-compatible devices.