We don't recommend wearing GoBe3 on the inside of your wrist. The nee design and the position of the electrodes is such that the best position of the device is the outside of the wrist.
Additionally, the new optical sensor introduced in the 3rd generation of the band may give altered heart rate results when worn on the inside of the wrist due to the increased number of blood vessels and thinner muscle tissues located there.
If you have any questions, please email us at gobe@healbe.com We will be happy to help you!