Withings has produced a fitness tracker that uses an e-ink display, instead of using LCDs or LEDs like other similar devices. The Withings Go is able to display on its round screen the time and a progress dial, showing the percentage of a target achieved, with the use of the 1.1-inch e-ink display meaning it can have a battery life of up to eight months, far beyond the battery lives of other smartwatches and many fitness trackers currently on the market.
