Whether your scale was set up via Wi-Fi or Bluetooth, your data is automatically synced within a few minutes after you step down from it. Your data is then immediately accessible in the Health Mate app.
Wi-Fi measurements are uploaded within 60 seconds of any user weighing in. When a scale is configured for Bluetooth use, measurements are synced only when the mobile device used to configure the scale is within Bluetooth range (about 10 - 20 feet or 3 - 6 meters) of the scale.
If you don't have Wi-Fi where the scale is located, consider setting up your scale with Bluetooth.