This Fossil Carlyle Gen 5 smartwatch is cast in black-toned stainless steel with a brown leather strap and is powered by Wear OS by Google™ . Designed for the fast-paced lifestyle, this smartwatch features GPS tracking, heart-rate tracking, payment methods, swimproof functionality and more for your daily needs. 44mm black stainless steel case and brown leather strap. Ref: FTW4026 Product Information Brand: Fossil Powered by Wear OS by Google™ Combatible with Android™ 6.0+ (excluding Go edition), iOS 10.0+Metal: Black PVD Stainless SteelStrap: Brown LeatherWater resistant: 30mFeatures: Social Media Updates, Text/Email Alerts, App Notifications, Activity Tracker, Control Your Music, Google Pay™, GPS, Heart Rate Tracking, Interchangeable Watch Band, Notifications, Personalise Your Dial, SwimproofConnectivity: Bluetooth Smart Enabled / 4.2 Low Energy