Sadly, we do not support the Wahoo RFLKT/RLFKT+, the Magellan Echo, and the Timex Run x50 with the current version of the Strava app.
You can continue to use your RFLKT(+) by recording with the Wahoo App and syncing your data to Strava.
As the Strava app evolves, we continue to assess the work needed to support all the various accessories, sensors, watches and operating systems. Sometimes, it is necessary to cease supporting some devices so we can redirect those development resources elsewhere. Thank you for understanding, and please reach out to our support team directly with questions and feedback.