Basic Specifications Model Number: e500 Bluetooth: BT5.1 Waterproof Rating: IP68 Display: 1.92 inches Weight: Approximately 52g Main Materials: PC+ABS, TPU (strap) Resolution: 240x284 Battery: 280mAh Continuous Operation Time: Approximately 5-7 days Body Size: 35*12MM Strap Size: 260mm Connector: USB magnetic charging Dedicated App: "H Band" Supported OS: Android 5.0 or later, iOS 9.0 or later Main Functions: - Incoming call notifications (phone/email/SMS/SNS), blood oxygen level measurement, call functionality, blood pressure measurement, heart rate measurement, sleep monitoring, blood glucose measurement, ECG function, etc. - Japanese instruction manual included ※Note: This device is not a medical device. The provided data and information are for reference only. [Shipping Method and Shipping] The shipping method will be determined by us. Separate shipping charges apply to remote areas such as Okinawa and remote islands (additional 2000 yen). No scratches or cracks Operation: Good