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Community Moderator Alumni are previous members of the Moderation Team, which ensures conversations are friendly, factual, and on-topic. Moderators are here to answer questions, escalate bugs, and make sure your voice is heard by the larger Fitbit team. Learn more
@SunsetRunner Welcome to the Fitbit forums! Yes, it is possible to upload MP3 files to your Ionic. You can also upload MP4 files with AAC audio and WMA files.
Now, what I think is happening here is that maybe those audios from Youtube may have some copyright protections (DRM encryption). Those files will not transfer to Ionic.
Now, have you tried uploading any other kind of audio file (not coming from Youtube)? Is that working?
I recommend checking this helpful article in which you will find some troubleshooting steps if music is not transferring and there isn't any copyright problems.
Also, please check this helpful article for more details regarding music. I think you will find that very helpful!
Hope this helps. Let me know how it goes! 
Best Answer
Community Moderator Alumni are previous members of the Moderation Team, which ensures conversations are friendly, factual, and on-topic. Moderators are here to answer questions, escalate bugs, and make sure your voice is heard by the larger Fitbit team. Learn more
@SunsetRunner Welcome to the Fitbit forums! Yes, it is possible to upload MP3 files to your Ionic. You can also upload MP4 files with AAC audio and WMA files.
Now, what I think is happening here is that maybe those audios from Youtube may have some copyright protections (DRM encryption). Those files will not transfer to Ionic.
Now, have you tried uploading any other kind of audio file (not coming from Youtube)? Is that working?
I recommend checking this helpful article in which you will find some troubleshooting steps if music is not transferring and there isn't any copyright problems.
Also, please check this helpful article for more details regarding music. I think you will find that very helpful!
Hope this helps. Let me know how it goes!
Best Answer
Community Moderator Alumni are previous members of the Moderation Team, which ensures conversations are friendly, factual, and on-topic. Moderators are here to answer questions, escalate bugs, and make sure your voice is heard by the larger Fitbit team. Learn more
@SunsetRunner Thanks for your reply! You are very welcome. I'm very glad to hear that the article shared helped you out. Hopefully, it will help other users as well.
Where you able to transfer those Youtube MP3 files?
Also, take a look at the Discussions Board as you will find a lot of interesting things there. Feel free to post on any thread you want. If you are looking for Fitbit friends to compete with on challenges, check this thread to add some!
Keep me posted!
Best Answer
Community Moderator Alumni are previous members of the Moderation Team, which ensures conversations are friendly, factual, and on-topic. Moderators are here to answer questions, escalate bugs, and make sure your voice is heard by the larger Fitbit team. Learn more
@sarahcastella Welcome to the Fitbit Community! Thanks for sharing the workaround to transfer Youtube video songs into mp3 format and to the watch.
I'm sure this will be very helpful for other users too. Sounds like an easy way to transfer our favorite video songs to out watches. Thanks!
Also, take a look at the Discussions Board as you will find a lot of interesting things there. Feel free to post on any thread you want. If you are looking for Fitbit friends to compete with on challenges, check this thread to add some!
See you around!
Best Answer