Manufacturer and model directory
Fitbit wearable model troubleshooting
Fitbit wearable troubleshooting covers 5 model families: Fitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE), Charge 5, Sense 2, Inspire 3, Luxe. Choose the complete Fitbit model family before opening a fix, and read the model number off your label first.
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21 complete records in this directoryFitbit Charge 5 will not charge
Open record Fitbit · pairingFitbit Charge 5 will not pair with the phone
Open record Fitbit · not syncingFitbit Inspire 3 will not sync activity or data
Open record Fitbit · update failedFitbit Luxe software update will not install
Open record Fitbit · workout missingFitbit Luxe workout or activity was not recorded correctly
Open record Fitbit · not chargingFitbit Sense 2 will not charge
Open record Fitbit · workout missingFitbit Sense 2 workout or activity was not recorded correctly
Open record Fitbit · battery drainFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) battery drains too quickly
Open record Fitbit · cellularFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) cellular service is not working
Open record Fitbit · GPSFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) GPS distance or route is inaccurate
Open record Fitbit · heart rateFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) heart-rate readings are missing or inaccurate
Open record Fitbit · resetFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) needs a safe reset or will not reset
Open record Fitbit · notificationsFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) notifications are missing or delayed
Open record Fitbit · update failedFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) software update will not install
Open record Fitbit · speakerFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) speaker or microphone is muffled
Open record Fitbit · touchscreenFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) touchscreen, crown or buttons are not responding
Open record Fitbit · water lockFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) water lock, swimming or water exposure is not working correctly
Open record Fitbit · not chargingFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) will not charge
Open record Fitbit · pairingFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) will not pair with the phone
Open record Fitbit · not syncingFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) will not sync activity or data
Open record Fitbit · workout missingFitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) workout or activity was not recorded correctly
Open recordFind your model
Model numbers covered, and where each one's answers are
Match the identifier on your appliance or device label to a row below. Fitbit answers here cover these model numbers.
| Family | Model numbers | Published specs |
|---|---|---|
| Fitbit trackers and smartwatches (Charge 5 and 6, Inspire 3, Luxe, Sense 2, Versa 4 and Ace LTE) | Charge 6 G3MP5 (GA05184 and GA05183 are colorway SKUs, not the model), with the Charge 5 FB421, Inspire 3 FB424, Luxe FB422, Sense 2 FB521, Versa 4 FB523 and Ace LTE G4SKY in the model notes | 8 researched |
| Charge 5 | FB421 | 3 researched |
| Sense 2 | FB521 | 3 researched |
| Inspire 3 | FB424 | 3 researched |
| Luxe | FB422 | 3 researched |
Fitbit trackers and watches
Fitbit trackers sync to the Fitbit app on a phone over Bluetooth, and most problems come down to that link, to charging or to the strap and sensors. The Inspire 3 is a slim band with about ten days of battery, the Charge 5 adds a brighter display, GPS and stress tracking, and the Sense 2 is a watch with extra health sensors. They share the same app and account, so your history survives a change of phone.
When a tracker will not sync, open the app and pull down to sync, check that Bluetooth is on and that the app has permission to find nearby devices and to run in the background, and restart the tracker and the phone. When a tracker will not charge, clean the charging contacts and the charger with a dry cloth, seat the clip firmly and try another cable and adapter. A dark screen after a long gap usually needs a few minutes on the charger before it wakes.
Heart-rate gaps and odd readings are often caused by a strap that is too loose, too tight or wet, so wear the tracker a finger's width above the wrist bone and clean the back of the case. Notifications that do not arrive point to the phone's notification and background settings. Before a reset or a change of device, check that the data you care about has synced, then follow Fitbit's own steps to restart or factory reset the tracker.