The original Smart Watch. The Timex Datalink I got in 2005. I still love this thing the but band keeps breaking and the battery lasts about a year (also about the life of the band) and is very difficult to get to. There was once (maybe still is) a vibrant community of developers. I used this as an address book and played Tetris and Space Invaders on it. Now it is time to move on, so make sure to pick this one.