vívosmart® HR+47ENmeasure elevation changes as you climb floors.A floor climbed is equal to 3 m (10 ft.).• Locate the small barometer holes on theback of the device, near the chargingcontacts, and clean the area around thecharging contacts.The barometer performance may be affectedif the barometer holes are obstructed. Youcan use canned air to clear obstructions.You can rinse the device with water to cleanthe area.After cleaning, allow the device to drycompletely.• Avoid holding handrails or skipping stepswhile climbing stairs.Maximizing Battery Life• Turn off the Auto Backlight setting(DeviceSettings on Your Garmin Connect Account,page 36).• Decrease the backlight brightness(DeviceSettings, page 39).• In your smartphone notification center set-tings, limit the notifications that appear onyour vívosmart HR/HR+ device(ManagingNotifications, page 31).• Turn off smart notifications(BluetoothSettings, page 32).• Turn off Bluetooth wireless technologywhen you are not using connected features(Turning Off Bluetooth Wireless Technology,page 33).• Stop broadcasting heart rate data to pairedGarmin devices(Broadcasting Heart Rate