Above the ankle boots are any styling of boot where the shaft rises above the ankle line on the wearer. Shaft height will generally measure from 4 5/8" to 8".
About Low Heel:
Low heel are shoes which raise the heel of the wearer between 2/4" to 1 1/4" higher than the toes and provide moderate elevation. Low heel shoes come in a variety of styles, including sandals, loafers, mary janes, oxfords and boots. Low heel shoes are generally considered comfortable footwear, mostly due to their flexible, lightweight soles and low heels, which provide stability.