How do I turn on/off haptic feedback (vibrations)?

The reason Kin has haptic feedback as a default setting is that it enhances the user experience by providing tactile confirmation of actions, improving accessibility, and generally making interactions more engaging and intuitive. But we also realise that it’s not for everybody, and on devices with a degraded battery it can be impacting battery life.

You can toggle the haptic feedback off in the Settings section.