Stylish Design: The W5SV features a sleek and modern design with a comfortable silicone band<br>LED Display: Equipped with a clear LED 7-segment display for easy viewing of time and notifications<br>Vibrating Alarm: Set alarms and receive wake-up alerts through gentle vibrations, ensuring a peaceful start to your day<br>Sleep Monitoring: Track your sleep patterns and gain insights into your sleep quality for improved rest<br>Long Battery Life: With a 40mAh battery, enjoy up to 45 days of standby time on a single charge, making it convenient for everyday use<br>Durable and Lightweight: Weighing only 18g and designed for longevity with over 300 charge-discharge cycles, it's the perfect companion for an active lifestyle<br><br>Specifications:_x000D_<br><br><br>Model: W5SV<br>Material: Silicone<br>Display: LED 7-segment display<br>Charging: Micro USB port<br>Voltage: DC 4.5-5.5V <br>Battery capacity: 40mAh<br>Sleep current: 25uA<br>Standby time: 45days<br>Atmospheric pressure: m860hPa~1060hPa<br>Battery life: &gt; 300 times charge-discharge cycles <br>Weight: 18g