Want to get fitter? The Withings Go has been designed to make it easy to keep on top of your health and help you reach your goals. It's a stylish activity tracker you can wear on your wrist, clip to your belt or keep in your pocket to monitor your steps, exercise and sleep. It has a slick design with an always-on E Ink™ screen that's easy to read even in bright light and under water, so you can keep an eye on your progress all day. Free Health Mate smartphone app - Functional and easy to use, the app syncs with your Go to provide in-depth metrics of your daily routine. You can even connect with other Go friends for some healthy competition and motivation. Water resistant - Love to swim? The Go is water resistant up to 50m so you can see how each trip to the pool benefits your health. E Ink™ Screen - Always on and easy to read in any light condition and even underwater, it makes it easy to track your daily progress. Food logging - Logging your food on the app and monitoring your daily exercise will help you find the perfect balance to reach your goals. Eight month battery - No wires and no recharging make the Withings Go much less hassle than other activity trackers. The cell battery lasts up to eight months then is easily replaced. Free Health Mate smartphone app Interchangeable wristband and clip Water resistant to 50m E Ink™ Screen Up to 8 month battery life Requires 1 x CR2 battery (included)