25+ built-in GPS and indoor sports apps ensure the Forerunner 165 can adapt to any training regime, perfect whether you're training for your first race or your 50th! It helps to plan your strategy with daily suggested workouts and syncs up with Garmin IQ Store Apps, so you can input your pre-planned routes or access routes from other members of the running community.Advanced running metrics go into more detail than other smartwatches to provide the ultimate training assistance, while helpful features like Garmin Pay contactless payments and smartphone notifications means the watch can provide assistance in everyday life too._Health Wrist-based heart rateStress trackingSleep score and advanced sleep monitoringBody battery energy monitoringPulse oxFitness ageIntensity minutesWomen's health tracking_Training Morning reportHRV statusBuilt-in sports appsRace widgetDaily suggested workoutsGarmin coachRunning powerRecovery timePacepro featureTraining statusTraining effectPerformance conditionRunning dynamicsPre-existing coursesTrack runningVisual race predictorCross-trainingConnectivity and NavigationBluetooth, ANT+Smartphone compatibility: iPhone, AndroidText response/reject phone call with text (Android only)GNSS supportSmart notificationsSafety and tracking featuresCalendarWeather forecastRealtime settings sync with Garmin Connect MobileSmart NotificationsMusic apps and storageControls smartphone musicPlay and Control watch musicGarmin Pay contactless paymentsConnect IQ - Downloadable watch faces, data fields, widgets and appsBattery saverFind My PhoneFind My WatchSmart trainer controlStocksTechnical specification Water rated to 50 metres (5 ATM)Bezel: Fibre-reinforced polymerLens: Chemically strengthened glassScratch-resistant Corning Gorilla Glass 3 screen20mm Quick release watch bandBattery: 11 days in smartwatch mode, 19 hours in GPSDisplay size: 30.4 mm diameterWeight: 39gDisplay: 390 x 390 pixels AMOLEDPhysical size: 43mm x 43mm x 11.6mmMemory: 4gbIn the box: Forerunner 265 watch, USB-C Charging/data cable, documentationColour: Black/Slate Grey