When you get a call, the thing's got to come off your wrist and be held up to your ear unless you've got a Bluetooth headset ready to rock, but worry not: Neutrano's also showing a model of its Nutec WristFone that pops off at the base of the wristband so you don't need to unstrap it from your wrist.
ENGADGET: Neutrano's Nutec WristFone watch phones at CTIA Mobile