An electronic device and an attachment element that includes one or more electronic components each include connection mechanisms. The connection mechanisms of the electronic device and the attachment element may be engaged to mechanically and electrically connect the electronic device and the attachment element. Such electrical connection may electrically couple the one or more electrical components of the attachment element to the electronic device. The connection mechanisms may utilize one or more of a variety of different mechanical connection mechanism such as one or more snap mechanisms, twist mechanisms, threaded mechanisms, detent mechanisms, spring mechanisms, slide mechanisms, magnetic mechanisms, and/or any other mechanism for mechanical and electrical attachment.