Is the OHO Pro big or oversized on my wrist? #6540 March 18, 2021 21:58 Updated The OHO Pro is in the upper end of the average sized watch face range. It is not oversized. Related articles Will the OHO Pro fit my wrist? ECG tests - How to do it properly, and what the numbers mean? OHO Pro Manual How to attach or remove the OHO Pro bands/straps What are the OHO Pro dimensions? Comments 0 comments Article is closed for comments.