Men’s functional jewelry, smartwatch, wearable development system (WDS), not for the high tech DIY faint of heart, the Meta Watch is all of these, a developer’s timepiece with low-energy Bluetooth 4.0, 3-axis accelerometer, vibrating motor, ambient light sensor, the TI MSP430 ultra-low power microcontroller, and six programmable buttons. All of that in a sleek, no-nonsense, waterproof to 3 ATMs stainless steel case with leather band, in black or white. What does this mean? Well, most usefully, you can customize the Meta Watch to communicate with other devices, like your smartphone—with no built-in functions, it leaves you free to build your dream wrist machine, as long as you don’t mind flashing the firmware (instructions available). “If you don’t have the stomach to use developer tools and would like to cancel your order, we understand!” say the Meta Watch people. Cool! Interested? $199.