Nokia Sensor is a spontaneous, sociable application for spontaneous, sociable people. With Nokia Sensor you can create your own personal pages - called a folio - on your phone. Then you can check out the folios of other Sensor users nearby, exchange messages, and share files ---- Nokia Sensor uses Bluetooth wireless technology, which means that it works within a 'circle' of up to 10 meters around your phone.

When other Sensor phones come within this circle, your phone can 'sense' them and you can see their folios and send them messages. As soon as you step out of each other's circles, you are no longer able to communicate via Sensor.