Do Not cary out a system update as it will fail and render the "Ssmart" watch useless. I have version RA900 and it literally fried the watch. All I have on the screen is a system update request. No other functionality. The app will inform you there is a new version of software, however, do not synchronise your watch. The issue seems linked to the version iOS 9.2.1 or higher.
Customer services are aware of the problem and are waiting for the release of the new update for the app. But looking at the reviews, I guess we are in for a long wait... Oregon, time to hurry and improve the Scientific bit!
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