By understanding people’s needs watch-based health trackers are quite obsolete these days. Withings has found a compact solution for continuous activity tracking gadgets. The Smart Activity Tracker is a tiny device can track how many steps are taken, how far you have gone up or down stairs, how many calories you have burned throughout the day, and whether or not you’re getting good sleep. It can even measure your pulse. Withings Smart Activity Tracker syncs with most iOS and Android devices via Bluetooth, allowing you to analyze the data it collects throughout the day. Withings app can also collect and combine data from its smart scales.