For watches that don't support the Stryd Zones Datafield, The Stryd Workout app can provide a workout experience for Connect IQ 3.0 compatible watches. Here are the compatible Garmin watches that support the Stryd Workout app:
Tactix Delta Sapphire,
Delta Solar, Delta Solar - Ballistic
Descent MK1
FR 245M, FR 645M, FR 745, FR 935, FR 945, FR 255. FR 955, FR 265, FR 265S, FR 965
D2 Charlie, D2 Delta, D2 Delta S, D2 Delta PX
Marq Athlete, Marq Aviator, Marq Captain, Marq Captain: America, Marq Driver, Marq Expedition, Marq Adventurer, Marq Commander,
Fenix 5S Plus, Fenix 5X, Fenix 5X Plus, Fenix 5 Plus
Quatix 6, Quatix 6X
Fenix 6S Pro, Fenix 6S Pro Solar, Fenix 6S Sapphire, Fenix 6 Solar, Fenix 6 Pro Dual Power
Fenix 6X Pro, Fenix 6X Pro Solar, Fenix 6X Sapphire, Fenix 6X Solar, Fenix 6X Dual Power
Fenix 7, Fenix 7S, Fenix 7X, Epix 2
Legacy Captain Marvel, Legacy First Avenger, Legacy Vader, Legacy Rey
Venu, Venu Mercedes Benz, Venu SQM
Vivoactive 4, Vivoactive 4S