Fitbit Charge 4 update now shows blood oxygen level on your wrist

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There's a reason the Fitbit Accuse 4 is at the pinnacle of our best fitness trackers page. It's small, it has a big-ish screen, has GPS congenital in, and it costs just $150. Now, information technology's getting even better with the power to show your blood-oxygen saturation on the band itself.

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Fitbit Charge iv review
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When the Fitbit Accuse 4 launched a little over a year ago, it had the ability to monitor your blood oxygen levels (also known equally SpO2) throughout the night, and presented the findings on a nautical chart on the Fitbit app. With the latest firmware update (1.000.34), Accuse iv wearers volition exist able to view this data on their wrist.

Although claret-oxygen monitoring has been bachelor on some more than advanced GPS watches, it gained prominence this year when it was introduced on the Apple Sentinel Series 6, and was plant to be a possible early on indicator of COVID.

Typically, a person'south SpO2 levels should be between 95 to 100 percent, simply many COVID patients saw their levels drib far below that. Still, Apple et. al were quick to say that their devices were not FDA-approved diagnostic tools for this condition. SpO2 levels can likewise exist used every bit a mode to meet if someone has sleep apnea.

Other Fitbit devices with blood oxygen sensors include the Fitbit Ionic, the Fitbit Sense, and the Fitbit Versa series; all measure out your blood oxygen levels while you sleep, to become the well-nigh authentic reading.

In club to view your SpO2 levels on your wrist, you'fifty have to update the Charge 4 to the latest firmware. Nevertheless, like other Fitbit devices, y'all volition only be able to check your SpO2 levels from the previous night; other wearables, like the Apple Sentry half-dozen and the Garmin fenix 6, let you bank check your blood oxygen levels at the moment y'all desire. Yous'll as well only be able to view a calendar week's worth of data unless yous sign up for Fitbit Premium, which costs $80 per year.

This firmware update is nevertheless existence rolled out; when it's bachelor for your device, yous should run across a notification in the Fitbit app.

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Michael A. Prospero is the deputy editor at Tom's Guide overseeing the habitation, smart home, drones, and fettle/wearables categories, as well every bit all ownership guides and other evergreen content. When he's not testing out the latest running watch, skiing or training for a marathon, he's probably using the latest sous vide machine or some other cooking gadget.