the sony live view is a piece of shit. Trust me or the reviews on Amazon. It loses it's connection every minute, the battery lasts three hours, the wristband is itchy ... The list goes on.

this one has an e-ink display. which is readable outside. also as a result, it has a nice battery life. It also looks NICE.

Note that it does not appear to have an e-ink display. They called it e-paper which doesn't necessarily mean the same thing.

The display appears to be this one: http://www.sharpmemorylcd.com/1-26-inch-memory-lcd.html or something like it.

It's transflective so you can read it outside, and inside you can use a backlight (which they list on the tech specs). It's very low power, so you can leave it on all the time. Those two things combined are why they call it e-paper.

Personally I think it is a bit confusing on their part, but I understand them wanting to get across that it's always on and visible outside. However, it does get confused with e-ink.

Their other watch (inPulse) uses an OLED display that looks similar.

Battery seems to be a big point, lots of people are claiming the Sony Ericsson watch only lasts a half day to a day.