Apple hasn't released any official numbers when it comes to Apple Watch.
Indeed, despite that launch (and various Android Wear devices) the whole wearables sector could still be politely filed under the description 'nascent'.
However, there remain some true believers.
It's also highlighting that potential with some data from the release of its debut Apple Watch game Farm Time.
As tends to be the way with everything Apple Watch, there are no absolute figures.
But, as befits the watch form factor and the idle games faming mechanic, retention is off the scale.
- On average, a player plays 20 sessions a day
- That works out as 13 minutes game a day
- The top 2% play more than 200 sessions a day, and
- One player completed 900 sessions in a day
How does think compare to 'an average mobile game'?
Wooga reckons short-term retention is double, while after a month, retention is three times higher.
It's a good starting point for sure, although at some stage, developers are also going to have to generate some revenue from their Apple Watch games.
Wooga hopes that's going to happen as Apple sells more watches and makes them more useful as standalone devices; something that will kick off as watchOS 2 SDK content hits the App Store.
You can read more about Farm Time via Wooga's blog.