The watch shown in the picture is the MARK Smart Sports Watch (MARK brand) with a rugged and durable design (Rugged Smartwatch). Here are the general specifications and features of this category of watches: 1. Design and Screen Screen: Full-color circular touchscreen with TFT or HD High Resolution technology. Body: Durable metal body (usually zinc alloy/steel) with tactical enhanced side buttons to protect the watch from shocks and scratches. Strap: Solid metal strap (as shown on the case) with the option to replace it with a silicone or fabric strap. 2. Health & Fitness Tracking Heart Rate Monitoring: Sensor to track heart rate throughout the day (Heart Rate Monitor) [The interface showed a reading of 97 bpm]. Health Indicator Tracking: Blood Oxygen (SpO2) measurement. Stress and tension level monitoring and sleep quality tracking. Sports Activities: Includes multiple sports modes (running, walking, cycling, workouts, etc.). Fitness Tracking: Calculates daily steps, calories burned, and distance covered. 3. Connectivity and Smart Features Bluetooth Calling: Equipped with a built-in speaker and microphone to make and receive calls directly from the watch. Smart Notifications: Receive alerts for calls, text messages, and social media app notifications (WhatsApp, Snapchat, etc.). Watch Faces: Ability to change and customize the watch face through its dedicated app. Additional Tools: Calculator, remote camera control, music control, calendar, and alarm. 4. Battery and Durability Battery Level: Displays the battery charge indicator as a percentage (e.g., 75% shown on the interface). Battery Life: Typically lasts 5 to 7 days with normal use, and up to 15-20 days in standby mode. Water Resistance: Water and dust resistant according to IP67 / IP68 standard, making it suitable for daily use, splashes, washing, and sweat. 5. Compatibility Operating Systems: Compatible with Android phones and iOS (iPhone) via a dedicated Bluetooth app. Serious buyers only, please do not undervalue the item.