What is the Meaning of an X on Display Post-Reading?

Out of curiosity, I ran a few tests. Disabling Wi-Fi on my home router and turning off Bluetooth on my phone produced the "X" after the test. My guess is that your phone was out of Bluetooth range and your Index BPM was out of Wi-Fi range and the after a pre-set amount of time, the device gave up. But then synced later.

That's certainly what I see. But if a connectivity problem were to blame, I wouldn't expect to see the reading successfully recorded in GCM or Garmin Connect Web immediately after.

Then I guess it connected immediately after you saw the X. The only way I saw the X was if both BT and wi-fi were unavailable when the BP reading was complete.

I had this "X" appear on my display this morning after today's reading.. My results were instantly available in Garmin Connect Mobile, so I'm not sure what went wrong during the sync. I forced a manual WiFi sync on the BPM, but got the same "X' result.

Hello All. This error is an indication of a sync failure. We are tracking this and I would like to add you to a case. seilogramp and jlgranth do I have permission to add you to this case?

Thanks in advance for the help.

Yes, you are welcome to add me to the case.

I see this error as well but syncs to connect just fine.

Hello - Just checking in to state that I am also getting the "x"  - however syncs seem to go through

Same. 

I started having the same issue...the "X" is displayed but the data is syncing.