Products like the Nike Fuelband and Fitbit Flex bracelet allow digital bracelet wearers to track and quickly analyze their physical activity. The Fitbit adds sleep tracking as well. These items are desirable for their use of the following design tenets:
– Builds on already-common platforms: iOS/Android devices
– Avoids conspicuous technological appearance: device into a bracelet, a fully acceptable fashion item
– Self-improvement/flattery: the devices appeal to an aspirational self-image, and promise to improve our fitness and sleep through the current trend of drawing out and analyzing everyday data
