Yes. To add a reading, connect your device to Lydia.
If your device is already connected to Lydia:
1) Log in to your Lydia Account.
2) Go to More.
3) Click Apps & Devices.
4) Click the 3 vertical dots of your device brand to get the more options menu.
5) Click Sync Now.
6) View your readings within the appropriate widgets in Lydia (such as your daily steps in the Exercise Widget).
You can also enter readings yourself manually directly into Lydia.