We are testing altogether four fitness watches by the manufacturers Garmin and Polar. The tracking qualities of the devices are convincing, and some offer additional functionalities. Testing the Garmin Forerunner 935, Garmin Forerunner 35, Polar M400, and Polar M200.
https://www.notebookcheck.net/Garmin-and-Polar-Testing-Four-Fitness-Trackers.262820.0.html
The fr935 is not even in the same category as the rest of the watch models named in the article. Not one of the other ones will pair with a power meter. Totally different target audience for the 935 vs the 35 or the Polar watches. The 935 is a triathlon watch that can do every other sport.