Do you have a smartwatch/wearable now? Or in the past?
It might depend on what you would use in a wearable device. But I have had the Band 1 for about 9 months and have been very happy with it. I use it mainly for phone, txt, calandar, and sleep functions. Works great with Win 8.1 on my Icon, so so on my other Icon with Win10, and great with my Nexus 6 (current device). Though using Cotrana with a android phone is not a usable function ...the band 1 works extremely well with regards to keeping connection to my phone compared to my Icon. The nexus 6 has a newer bluetooth version....or a better bluetooth radio I am assuming.
Battery life is key for me, I would not accept any watch type wearable with less battery life than the band 1.....about 2.5 days with my use.
I have been toying with trying a Asus zenwatch 2 or getting a back up band 1. But my band 1 has not yet broke .......I keep waiting for that moment when the clasp or strap break............but knocking on wood still ...........
I see you can probably get a new band sealed on the bay for maybe $90-$120 on average now. Worth it for sure compared to the competition I think. And with some of the complaints of the band 2.......not sure I would want to upgrade for such a big cost right now.