got a link to your watch case?
Here you go https://www.amazon.co.uk/gp/product/B087NJ5V1G/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
@mrk Which software is this? My Carista just expired and looking for an alternative.
This is Carly (iOS and Android) - Really nice app that does more than just diagnostics. Note, you don't need the Carly dongle to use it, if you already have an OBD2 dongle that's wired or wireless then it will still work but check what dongle you have as not all wireless ones offer coding features whilst the wired ones do.