Here we see the outer side of the ISEB6. This is the side on the outer side of the forearm, facing away from the wearer. The light sensor is placed here, as it is meant to measure scenes that the wearer is viewing / photographing. Merely raising the wrist as one would read a watch, brings the light sensor into the correct angle to measure the scene ahead. Next to the light sensor is an alert vibrator. This allows the ISEB6 to have ‘alarm’ functions, while keeping those alarms entirely private to the wearer and not bothering or alerting anyone else.