Does the app work for the device ... ?
Please read the app description.


Has the app tide predictions for the location ... ?
Tide Table Chart provides tide predictions for thousands of tide stations across the world.
Please check the tide data of the Web app.
The phone app and the smartwatch app are using the same tide data as our Web app.


How accurate are tide predictions?
Why is there a difference between your tide prediction and the prediction at ...?
Please read the Tide Prediction Accuracy page.


Can I use the smartwatch app without connection to my phone?
Yes, the smartwatch app can be used without connection to your phone.
But you should run the phone app Tide Table Chart once per week to update the tide data on your watch.
Please watch the video


Why does the smartwatch app say "Please run the phone app"?
You should run the phone app Tide Table Chart once per week to provide new tide data for your smartwatch. Make sure that the watch and the phone are connected before opening the app Tide Table Chart on your phone and on your watch.


Where is the smartwatch Refresh button to download new tide data from the phone?
Fitbit, Garmin or Amazfit watch:
At the top of the watch app: tap the Menu button "..." and then the Refresh button to update the tide data on your watch.
Please don't forget the Fitbit "Sync", shown in the video, before starting the watch app Tide Table Chart.

Please watch the video

On all other watches you do not need a Refresh button, everything should happen automatically.
Just make sure that the watch is connected to the phone before opening the app Tide Table Chart on the watch and on the phone.
When you open the phone app Tide Table Chart it will automatically send the tide data update to the watch app. Also every time you change the tide location in the phone app it will send automatically an update to the watch app.


Why is the watch display black when I download tide data to my smartwatch?
If the connection to the phone is slow, the watch display may switch off during the download. Just tap the watch screen to switch the display on again.


The download was interrupted by a watch Notification display and stopped working.
What should I do?
Please press the Back button and try again.


How can I solve Fitbit sync problems when the hotel WiFi goes through a sign-in web page?
Here is how one of our users solved the problem:
"I am staying in a hotel near the beach, and my phone is on its wifi. Before using the wifi, it requires you to go through a sign-in web page where you give your room number and last name. My phone was signed in. However, it seems the Fitbit could not get signed in through the WiFi connection. When I finally thought to disconnect from wifi and use my mobile data only, it immediately started working."


Why does the Fitbit watch app show a "Connection Error" when I try to download new tide data from the phone?
Please be patient, the Fitbit connectivity is slow and unreliable .

The Fitbit phone app "Sync" step, shown in the video, is very important. Don't skip it and make sure that the watch app Tide Table Chart is closed during the Sync.

Please try this:
1.) On your watch: close the Fitbit app Tide Table Chart.
2.) Open the Fitbit phone app and Sync it with your watch, wait until it says "a moment ago"
3.) On your watch: open the Tide Table Chart app, tap "..." and then the Refresh button
4.) Wait at least one minute for "Connecting..." (the Fitbit is slow). If the watch display goes black during the download, just tap the watch screen to switch the display on again.

Steps 1) and 2) are really important, don't skip them.

Unfortunately Fitbit is doing a terrible job to recover from connectivity problems.
So you may have to repeat these 5 steps several times.

Try it with different Connectivity settings:
* WiFi on, Mobile Data off
* WiFi off, Mobile Data on

Sometimes it helps to Restart your phone and your watch (power off - power on) and then repeat the 4 steps above as shown in the video

Sorry, we can not help you with watch connection problems.
This is a problem in the Fitbit phone app, which is responsible for all the communication between watch and phone. Fitbit had promised to fix these problems a long time ago, but so far they have failed to do this: https://community.fitbit.com/t5/SDK-Development/Companion-messaging-and-writing-a-file-Not-working/m-p/2400027#M2173

But if you make sure that Fitbit watch and phone are connected and
if you follow the "Sync" steps correctly, as described above and shown in the video, you should be able to get it working.