Customer Ratings & Reviews

Hi there, Kenneth. We hear your concerns regarding inconsistent heart rate tracking on the Charge 6 — we get how frustrating this is. Heart rate tracking accuracy is affected by your personal physiology, device placement on your arm, and the activity you're doing. Here’s a few tips to get better readings:

1. Wear your Fitbit device on top of your wrist with the back in contact with your skin. When not exercising, position it a finger's width above your wrist bone.
2. During exercise, wear it slightly tighter and higher for a snug fit that doesn't restrict blood flow, as this can affect the heart rate signal.
3. Frequent wrist bending during activities can also interfere with the signal if the watch is worn too low.

Regarding not getting SpO2 data, there could be a few things impacting the readings:

1. Turning off any SpO2 clock face or app permissions can cause the feature to stop functioning.
2. You must get at least 3 hours of quality sleep. Data is only collected when you’re still. If you move a lot during your sleep or the sleep session is too short, you might not get SpO2 data.
3. Charge your Fitbit device to make sure it’s able to collect data throughout your entire sleep session. Note that you may have to charge your Fitbit device more often when using an SpO2 clock face or app.

We’re only a click away if you need any support: https://support.google.com/fitbit/gethelp?hl=en

Hi there, NelsonF. Sorry the Charge 6 wasn’t quite what you were expecting. That said, comfort is important so you may need to change bands to fit your needs — here’s how:

1. Turn over your tracker and find the band latches.
2. To release the latch, use your fingernail to press the flat button toward the band.
3. Gently pull the band away from the tracker to release it.
4. Repeat on the other side.
5. To attach a band, press it into the end of the tracker until you hear a click and it snaps into place. The band with the buckle attaches to the top of the tracker.

Don’t hesitate to reach out to us us here: https://support.google.com/fitbit/gethelp?hl=en