G-Squad is Casio's sporty line of G-Shocks and has digital (GBD) and Digital/Analog (GBA) models. These watches have a step counter, Bluetooth connection, and training functions, but unlike common smart watches, these can take a beating, and the battery lasts for years. The GBD-800 looks husky, but the round shape and weight from the lower end of the series make it very wearable. The form descends from the legendary DW6600 as used by the Navy Seals. The 5 mm hole spacing (closer than normal) on the watch enables a better fit on the wrist. In addition to the precision strap, the watch has a lap/split button on the front and a comprehensive interval timer. If these appeal to you, comparison between models just got easier. The suffix UC-5ER means the color code (Utility Color, 5 for Brown) and European version. The various regions are most often just packaged a bit differently, and the manual language varies.