Wearable fitness device and fitness device interchangeable with plural wearable articles

Abstract

The present invention relates to a fitness device comprising a display having plurality of lights that are configured for illumination as fitness intervals are achieved by a user. The fitness device is interchangeable with plural wearable articles. This functional fitness device allows a user to track their steps while at work, shopping, an evening out, or anytime one is on the move, even when it is interchanged between different wearable articles.

Dependencies are inferred from the claim text.