Which music app/method is best for battery life?

I'm getting my watch next week and starting to consider what I want to do for music. I do have my own personal music library (not in the cloud, actual MP3s) so I know that is an option, but organizing playlists manually might be a pain. Also, my library is limited so I'm considering signing up for maybe Spotify.

With Spotify, does that just download the songs to the device, just like if I loaded them myself to the device? Meaning, is battery usage the same either way? Or is there an advantage one way or the other in terms of battery life?

I don't use iTunes, anything other than Windows Media Player you can recommend to create the playlists or does it work well?

Sidenote: I really wish there was support for PLEX and Pandora.

  • With Spotify it downloads playlists you create in Spotify.  Like I have "Big List" and "5K Race Music" play lists. 

    You can start the download manually (being on a charger is strongly recommended) or if you connect it to a charger that's not data (i.e. wall charger, not to a PC) it will automatically update downloaded lists with any new additions. 

  • Side note if it might be a question - I currently have between 1500-1600 songs in my Big List playlist and so far no issues with that many songs on a Fenix 6x paired with AfterShockz (Air, Titanium and Aeroplex's).  I have a couple of other smaller play lists as well.   

    I find I usually add 1 to 5 new songs most Monday's and Fridays although the "discover weekly" on Monday is where I get the majority off them versus the "new releases" on Friday so it's slowly grown over the last 3 years that I've had Spotify based on the new recommendations I get from Spotify.  I've been pretty happy with it as a service. 

    And I didn't answer the battery burn question, I track about a 5-6% burn rate an hour with GPS, music, stryd and scosche at the same time.  I do not think the 'app' matters much in power consumption, the biggest consumption will be the stereo audio streams the watch is pushing out to the headphones over BT. 

  • Thanks for the extra info, that's great only 5-6% battery burn an hour! Hey, how are the AfterShockz? I've never tried open-ear headphones. I also normally like my music kind of loud but I know I'd be safer with something like this. Any way you can explain how they sound, compared to in-ear headphones/buds?