Functional cover for ring wearable

A wearable device system, comprising:

• a wearable ring device configured to be worn on a digit of a user, comprising:
• a curved housing;
• one or more sensors positioned at least partially within the curved housing, wherein the one or more sensors are configured to acquire physiological data associated with the user;
• and
• a first electrical contact component exposed to an external surface of the curved housing;
• and
• a removable cover configured to engage the wearable ring device, the removable cover comprising:
• a ring-shaped housing configured to at least partially surround the wearable ring device when the ring-shaped housing is in a mounted state on the wearable ring device, wherein both the ring-shaped housing and the wearable ring device at least partially surround a digit of a user while the wearable ring device is worn on the digit of the user with the ring-shaped housing in the mounted state;
• one or more electrical components positioned at least partially within the ring-shaped housing;
• and
• a second electrical contact component exposed to an external surface of the ring-shaped housing, the second electrical contact component configured to physically and electrically contact the first electrical contact component of the wearable ring device when the ring-shaped housing is in the mounted state on the wearable ring device, wherein the second electrical contact component is further configured to transfer electrical current, data, or both, between the one or more electrical components of the ring-shaped housing and one or more sensors of the wearable ring device.