Automatic activity measurement: steps, running, swimming distance (waterproof, fifty m), distance and caloriesSleep analysis: measurement of sleep cycles and stealth wake by vibration.
Auto Sync: Track each and every data on your smartphone
Premium finishes: stainless steel, nickel-plated hands and silicone strap.
Long-lasting battery – up to eight months of battery life
Questions ? Disadvantages? Get answers and help if you need it at support.withings.com