Withings Scanwatch 2 with ECG, heart rate, SPO2, activity and sleep tracking (42mm, white)

Characteristics Sleep quality: Yes Accelerometer: Yes Calories burned: Yes Altimeter: Yes Active minutes: Yes Heart rate monitor: Yes Blood oxygen sensor: Yes Design Strap material: Fluoroelastomer Market positioning: Smartwatch Water resistance: 5 ATM Strap color: White Shape: Round Lens material: Sapphire Housing material: Stainless steel Watch case size: 42 mm Watch case color: Stainless steel Power Supported battery type: Built-in Charging time: 2 hours Battery life: 30 days Weight and dimensions Product weight: 52.6 g Network Mobile network connectivity: No Efficiency Built-in camera: No Support for mobile operating systems iOS 15 iOS 16 Android FM Radio: No Package contents Cables: USB User Manual: Yes Quick Installation Guide: Yes Display Screen diagonal: 0.63" Pixel density: 282 ppi Display technology: OLED Display type: Hybrid Ports and interfaces Bluetooth: Yes USB port: No Wi-Fi: No Headphone plug: No Bluetooth Low Energy (BLE): Yes NFC: No