When synchronizing data, Hexoskin OneSync needs internet access in order to communicate with Hexoskin servers. Once completed, your raw and processed data will then be available for viewing and exporting on your Hexoskin Dashboard (my.hexoskin.com).
The Hexoskin OneSync software has been designed to store (temporarily on your computer) your Hexoskin data in the absence of an internet connection. As such, it is possible to synchronize "partially" the data without an internet connection. Then, once the internet connection is reestablished, you can launch Hexoskin OneSync and the data will then be automatically synchronized with the Hexoskin servers.