apple watch installing specific app
I have added an app called EXI on my iphone as it should collect data for my diabetic prevention course that i am on, but it will not install on my apple watch it is in the downloaded apps and has the install button alongside it but it looks like its going to install but it never does it goes back to apple watch screen on my iphone with the install button returning next to it, my apple watch is a series 3 so there are no more software updates for this model, I have contacted Apple and the developers of the app but neither can help anyone here have any ideas
iPhone 11, iOS 17