

†Premium content and features subject to change. If you believe you are experiencing a medical emergency, call emergency services. If you have any concerns about your health, please talk to a healthcare provider. It is intended to provide information that can help you manage your well-being. This feature is not intended to diagnose or treat any medical condition and should not be relied on for any medical purposes. ⧫⧫⧫The Health Metrics dashboard and the metrics displayed in the dashboard are not available in all countries. The SpO2 feature requires more frequent charging.

It is intended to help you manage your well-being and keep track of your information. The SpO2 feature is not intended to diagnose or treat any medical condition or for any other medical purpose.

Significant changes in ambient temperature may negatively impact skin temperature tracking. Skin temperature is only available in the Fitbit app and only displays variation. ⧫⧫Skin temperature variation and SpO2 are not available in all markets. The Fitbit Charge 4 is a real evolution from its predecessor, and GPS is an excellent addition that helps bridge the gap between fitness bands and fully-fledged sports watches. The Series 7 comes in 41MM and 45MM.* Varies with use and other factors up to 5 hours with continuous GPS.
Take the measurement of the distance between the lugs (where the watch strap fits).įor Apple Watches the you have the choice between 38MM, 40MM, 42MM & 44MM, you can also enter your watch model number into a search engine to find what size your watch uses.Īpple Watch 7: The recently released Apple Watch 7 is compatible with most our bands. If you cant find the size on the back place the watch with the watch face facing up. Your Apple watch will say the measurement on the back. In such a scenario, you will need the watches' band width size, also know as the watch lug width size. In certain cases, knowing your wrist size alone may not be sufficient. What is the watch band width / watch lug measurement? Check your wrist size against the size of the strap that you wish to purchase on the individual product details page.įrom there, you can select and purchase our watch straps: Small (S), Large (L) or Free Size.Ģ. Heres how you can swap out the Fitbit Charge 4 band. In most cases, knowing your wrist size/length will be sufficient. Simply use a flexible measuring tape to wrap around your wrist and record the measurement on the tape that overlaps the zero end of the tape OR just grab any string/paper strips to do the same, then lay the string on a ruler to get your accurate wrist size. If you are still unsure, you may contact us here. Please check the sizing guide below before ordering. At Astra Straps, all our straps have specific and clear sizes indicated.
