Volt MX makes creating an Apple Watch app really easy with its Watch Connectivity Feature. Flipping a switch creates all the files you need to establish a connection between a phone and a paired watch. For processing-intensive actions, the low code features allow you to easily send requests to the phone to process the action and send the results back to the watch. Check it out here:
https://opensource.hcltechsw.com/volt-mx-docs/95/docs/documentation/Iris/iris_wearables_dev_guide/content/applewatchiris.html