E-TUBE PROJECT Cyclist 4+

Difficult to connect: sometimes it connects easily, sometimes it doesn’t. Plus it’s only one button on the derailleurs so if you struggle to connect and push it repeatedly, you can accidentally change modes. Also the most prominent thing should be battery health. It’s also just 5 simple green bars for the derailleurs and a single green light for the shifters.
And passing along a warning: my LBS made it very clear to not try updating via the app. They get back bricked bikes all the time from people trying.

I use this app to update the Shimano components on my MTB, and to make power adjustments. It works well for that, however I would like to see integration for Apple Watch Workouts pushed to my bike. With watchOS one can connect via Bluetooth to “health devices” under Settings>Bluetooth>Health Devices, but my MTB does not show up. It would be sweet if this integration was added so it would link to outdoor cycle workout, and so all of my exercise info is in one place - the Health app on iOS.

A login to Shimano is required; the app won’t work if you skip this step. Every subsequent connection will require the Bluetooth to be enabled by pressing the button on the bike. Once those rules are followed, the app works well. I was able to change to semi-synchronized shifting on the first use after login. That’s a very useful feature that I didn’t know existed!