The watch face measures 1.7 inches around and a slightly thick 0.5-inch deep. Martian also offers a number of colorful replacement straps for $20 apiece, though the Notifier will also work with any 22mm band. The black model is completely black, the red model has a red band and red face, and the white model has a white band, white face, and silver bezel.

Each features a resin plastic case with a stainless steel bezel. The watch comes in three different colors: black, red, or white. The straps are a bit sporty for my taste, but this is currently the closest you can get to a restrained, tasteful smartwatch design (though the upcoming Moto 360 looks promising). It features a standard circular face, and simple, easily swappable ribbed silicone straps. So while there isn't anything fashion forward about the Notifier, I appreciate its relatively classic design. Design and SetupI know I'm not in the majority on this, but I think that many of the futuristic-looking wearables devices on the market today are just plain ugly.

Fitbit low battery notifier