The Toybox.Position module provides a GNSS fix quality indicator.
| Name | Value | Description | Sats | HDOP |
|---|---|---|---|---|
| QUALITY_NOT_AVAILABLE | 0 | GPS is not available | ||
| QUALITY_LAST_KNOWN | 1 | The Location is based on the last known GPS fix. | ||
| QUALITY_POOR | 2 | The Location was calculated with a poor GPS fix. Only a 2-D GPS fix is available, likely due to a limited number of tracked satellites. | 3 | |
| QUALITY_USABLE | 3 | The Location was calculated with a usable GPS fix. A 3-D GPS fix is available, with marginal HDOP (horizontal dilution of precision) | >= 4 | > 3.0 |
| QUALITY_GOOD | 4 | The Location was calculated with a good GPS fix. A 3-D GPS fix is available, with good-to-excellent HDOP (horizontal dilution of precision). | >= 4 | <= 3.0 |
In addition to recording the GNSS fix quality in the FIT file (see further details), it is recommended that the user be made aware of the fix quality. Only two colors / categories should be presented to the user.