Fossil Hybrid Smartwatch - Q Tailor Light Brown Leather Looks like a watch, acts like a smartwatchthese no-charge hybrid smartwatches feature built-in activity tracking, filtered notifications and multiple time zones Snap a photo, ring your phone, control your music and more with the customizable link button. Case Size- 40mm. Strap Circumference- 190 +/- 5mm Track your everyday accomplishments including steps, distance, and calories burned and monitor your sleep duration and quality When a notification or alert arrives for a text, email or app update, a gentle buzz lets you know right away. This wrist essential is always on, always connected with a battery life up to 1 year (based on usage) and automatically syncs to your phone Fit your style with interchangable straps - compatible with all Fossil brand 18mm straps. Compatibility: Android OS 5.0+, iPhone 5/iOS 9.0+, Smartphone App