You know, I just realized that I haven't given any actual opinion on this new device...
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I do not have opinion on Gear too. But I have secret agenda: I want to replace my wristwatch. In the ten years which passed since I bought my last one, watch industry has "moved on": now it is more about the look than the function.
So what I want is: relatively thin (10mm or thinner), not oversized (40mm x 40mm top), time display as large as possible, chronograph, calendar, splash-proof, (if e-watch) at least a week of battery life.
Ten years later, oh irony, the only watch I could find which fits the criteria best: the same watch I bought tens years ago. (It misses the mark by been 12mm thick.)
Pebble had the right idea when they gave their device an ePaper display.
The problem with e-Ink is that it has very limited applications. I personally OK with e-Ink, but a device with niche appeal is not going to have a wide adoption and thus would be stuck in the niche, improving only slowly.
To me personally, the failure of Pebble is that it is bit too large. Or probably Pebble is OK, but it is not sold here in retail so I have no way to test it before buying. (The newer Pebble Steel is actually smaller than the original (plastic) Pebble (unfortunately it also features the largish "Pebble" inscription on the front).)