Marvin J. Ashton of the Quorum of the Twelve Apostles taught that the Lord measures a person's heart, rather than any physical characteristic.
Elder Marvin J. Ashton, "The Measure of Our Hearts," General Conference, October 1988, accessed April 24, 2023
When the Lord measures an individual, He does not take a tape measure around the person’s head to determine his mental capacity, nor his chest to determine his manliness, but He measures the heart as an indicator of the person’s capacity and potential to bless others.