Here's my experience with both Shine AND Flash. So far not good at all, which really sucks because I really wanted to give these products a try. Everything I see regarding Misfit says they're a terrible company you shouldn't put your faith in, but damn I still wish I could make it work because I love the design and flexibility concept.
On 10/4 I bought a Shine new from Target and could not get it linked to two different Lumia 1020s both running dev preview 8.1.1. You launch the app, get a login/sign-up screen, and then it goes immediately to pairing which takes you to bluetooth settings. If I paired it via bluetooth (it shows up as Shine) then go back to the app it will just crash. After having that happen several times I got crafty and removed my fitbit flex from my list of bluetooth devies in case of a conflict. Now the app no longer crashed but it still wouldn't pair and now kept saying the Shine was already linked to another account, which should be impossible since it's new. Turns out after some research that it's a common error that also happens on IOS and Android. The "fix" for that is to go into the app and unlink it but of course can't unlink it if you can't even get into the app to mess with the settings. Either way in my case it had to be a false error.
Next up I try it with a Lumia 520 that's not on dev preview and is running stock 8.1 or whatever the latest official release is. Same issue, no change. I do some research and from the windows phone store reviews it looks like there is a firmware update for the shine that you can do from the app, however you can't even get to that stage in the app without pairing first! So then I go to their website for help. So not only is there almost no mention of Windows Phone there in any form of troubleshooting, but their website where you submit a ticket kept failing. I tried with IE11, IE11 compatibility mode, and then Chrome. Failed every time. So then I find a help e-mail and send them very detailed info about all of this. It's now been two days to the hour and no response for a product I cannot use literally out of the box. Not only that, but their troubleshooting pages literally only mention steps to work on an iPhone despite it being supported on Android as well. It's like these guys have 0 infrastructure/support. So I'm like fine I'll return it.
THEN I happen to stop at a Best Buy and guess what, even though the Flash is only available via pre-order it turns out Best Buy has a special deal where they can sell them early. So I buy one just to see if there's some newer firmware or something that might make things different. Still doesn't link out of the box, and laughably it doesn't even show up as Flash under bluetooth. It says Shine. What kind of ****ty coding is this that you can't even have your new product have its own name? I know it's very likely just the same product just in a plastic container, but you can't even get the name changed in the code? Anyway so it's the same deal with the linking however after just repeatedly trying over and over I finally manage to get it linked and into the app. But so far it has yet to actually show any activity whatsoever. After a day of wearing it literally nothing shows even after a "successful sync". I even tried updating firmware and that doesn't appear to work. The process happens but then no change in the firmware number and no verification that it finished.
So here's where I'm at. I think just because I'm a glutton for punishment I'm going to grab a buddies Android phone and see if I can get it working on that just to see if there's some wall I can get over in terms of setup. Then I'll try it again on Windows Phone. If that doesn't work then I guess I'll just have to return them or hold onto them in the hopes that Misfit updates their app. Judging by everything I've seen about the company though, I have 0 faith in it. I mean they have a windows app out, they've announced it via twitter and probably other places, and yet look at their official support page about what devices they support. No mention of Windows Phone. But half their stuff doesn't even mention Android so I don't think it's just Windows Phone apathy.
https://forums.windowscentral.com/e...s%3A%2F%2Fmisfit.com%2Fsupport&token=6ddi6IPP
I think it's just a very poorly run company. Hopefully they turn it around. For what it's worth the firmware version on the Flash I tried was fl2.1.0r.prod.