Meet the Withings Go: a smart wearable device that lets you track your fitness activity and keep an eye on your performance in real-time. It has an E-ink display that is readable in bright sunlight and water. The battery life lasts up to 8 months .
Go shows who active you have been each day. It works for running, swimming, and sleep. You can wear it in 3 ways. It will ship for 69.95 euros.