If you're passionate about computers and electronics, if you're on the cutting edge of technology and no detail escapes you, buy Apple Series 9 Smart Watch Black 45 mm at the best price. Watch type: SmartwatchConnectable product: YesColor: BlackMaterial: AluminumFeatures: AccelerometerBuilt-in speakersTouchscreenAmbient light sensorGyroscopeAltimeterBuilt-in microphoneSleep monitorMagnetic chargingBlood oxygen level sensorDisplay with rounded cornersBattery type: IntegratedLitio IonConnectivity: BluetoothWi-FiGPSNFCGlonassBeiDouGalileoCompatible: SiriInternal memory: 64 GBCase: 45 mmShape: RectangularCamera/Photo camera: NoWireless charger: YesFM radio: NoWater resistant: 50 mFunctions: Heart rate monitorUSB connection: NoStrap: RemovableNot included: Mobile network connectionFlash memory: 64 MB