I am very satisfied with the product itself after purchasing it, but I have decided to sell it because it is too high-spec for my usage and I don't think I can fully utilize it. Purchased on 2025/08/14, it is an unused item that was only opened for photography. Instinct 3 Dual Power 50mm Tactical Black 010-02935-80 Brand: GARMIN Analog/Digital: Digital Band Material: Rubber Band Color: Black Notification Functions: Incoming call notification, Email notification Built-in Sensors: GPS, Heart rate sensor, Gyro sensor, Acceleration sensor Measurement Functions: Step count, Distance traveled, Heart rate measurement, Calorie consumption, Sleep detection Waterproof/Dustproof: Waterproof Wireless Communication: Bluetooth, ANT