Re: Battery Life
Solar powered watches are great, but they don't silently vibrate to let you know there's a call or message, nor do they allow you a discreet glance to decide whether a notification is worth following up or not. They don't offer a development platform for enthusiasts, nor a huge library of community source software apps, faces and enhancements. Or allow me to be 30 metres from my phone and still be in touch. Even in a swimming pool.
My solar watch, however, does require the time correcting more often than I need to leave my pebble on a charger overnight while I sleep.
There are many comments on here about the negatives of a smartwatch that are made by people who don't have one. I know this because they are wrong.