Measuring devices can be configured to be worn on a wrist of a user for sensing data from the user. A measuring device can include a processor, a memory, and a case including a display and the processor. The measuring device can also include aUSB plug electrically and mechanically coupled with and extending from the case, the USB plug structured and arranged to be insertable directly into a USB port of a device, the USB plug including a first coupling member. The measuring device can include first and second straps configured to secure the measuring device to the wrist of the user, the first strap including a second coupling member configured to be coupled with the first coupling member. Moreover, the measuring device can be configured to measure a physical parameter of the user via a sensor on the measuring device.
