I felt the same when I had an iPhone and then the Galaxy Note was released. I thought I had my perfect phone with the jailbreak but the Note included everything I could want so eventually I upgraded and never looked back.
Note 4 and Edge caught my attention the most along with the G Watch R and Moto 360. iPhone 6 nothing bad about it but just ok. That Apple Watch well I'm sure there'll be a lot of bands to choose from but other than that nope.
MKBHD's video basically summed up my thoughts on it so far. I like the easy way to swap bands and because it is an Apple device finding alternate bands will be easy to come by.