Its face is 38.5mm across, which is slightly larger than the smaller Apple Watch. It comes in silver, black, and rose gold, and you can buy 10 different styles of 14mm or 20mm bands. Small watch, plus small bands, plus lots of options, equals a watch most people can comfortably wear. If I were buying one, I'd get the silver case with the nubuck brown leather band, but to each their own.
No matter which you buy or how fancy the leather sounds, there's still nothing sexy or luxurious about the Time Round. Its design is more like a $30 Timex or Swatch than something a guy in white gloves would lift out of a glass case. It's not ugly, though, it's just utilitarian. (The best-looking models are the ones that put time markers on the giant bezel so it looks like the ring is that big on purpose.) It's made of fairly plasticky-feeling stainless steel1, and I worry about how the four mushy buttons will hold up long-term, but I've had no problem with it so far.
In turning its blocky rectangle into a sleek circle, Pebble made two big sacrifices. The first is that the Time Round is much less waterproof than the other models. It's not waterproof, actually. It's just splashproof, which means you can wear it while you wash your hands but not in the pool or shower. For most people, that won't really matter.
Pebble also sacrificed a lot of battery life to get the Time Round as small and thin as it is. It's not complicated math: smaller thing means less room for battery means less battery life. I've still been getting at least a day and a half out of the watch, and usually more like two and a half. I don't mind that number, and I'll gladly trade a little longevity for looks in this case. If you want more, go buy the other Pebbles.
The Time Round does the same things as the other Pebbles, except for the things it can't do because a few developers haven't updated their apps to work with the Time interface. (Get it together, Jawbone.) You can track your steps with a few apps, set alarms with a few others, and use the built-in microphone to set reminders or take notes. There's nothing remarkable or even surprising here, just simple things. I use the Music app all the time, the Swarm app occasionally for checking in to new restaurants, and a step-tracker in the background. That's about it.
Most of the specs and software are the same across all the watches, which means the interface is still slow, and it's still unnecessarily animated and cartoony. (The unfolding letter is cute, Pebble, but I'd rather just see the email. My arm's hurting from holding my wrist up.) The whole look and feel needs some love, but I'm really growing fond of the timeline metaphor Pebble uses for organizing all your information.
Your watchface is the center of the experience—it's right now. Scroll up with the top button on the right side of the watch, and you move back in time. You'll see sports scores, appointments, incoming texts and calls, and whatever else you want in there. Scroll down, and you see what's coming next. After spending so much time with the Apple Watch or Android Wear, where everything's different and in different places, I love that I can describe a smartwatch's interface in six words: All your information in a timeline. The timeline can clutter easily if you're not choosy with what you allow in, and it does limit the things you can actually do with the watch itself, but I don't think Pebble cares about what you can do. I like that.