"Give me a wearable that I didn't ever have to recharge, or only needed to recharge once a month, that cost under £20, and that gave reliable notifications of calls or messages received on my phone, and instantly gave me a zoomable map - and maybe then we're talking"
I'd be happy if I could have a smartphone that does this for £20.....
Does no one remember when the first iphone came out and how everyone laughed that anyone would buy a phone that couldn't even last a week on one charge and was so huge?
I think if you can have one that lasts 2.5 days between charges with reasonable use, lets you make calls/texts/check email, has GPS built in and the ability to run apps/make enough sound to act as a satnav, looks good and sells for <£200 it will sell well. It seems like everyone I know that runs/cycles/tri club thinks the 'right' price point has been reached for GPS sports watch type things at £80-300 and either has, or wants something like the tomtom runner2 music(UK£189), and if they can sell the tomtom without the apps facility/email/text/phone calls then an iwatch type thing with added sim card/gps (surely this will happen in the next 2 iterations) will really sell.