This dataset includes all the videos of trees that were used to evaluate the quality of the urtrees smartphone application and algorithm for estimating tree DBH and tree height from a video recorded with a smartphone. It also includes spreadsheets recording the ground truth measurements and the values estimated by urtrees. In particlar it is split into sub datasets corresponding to the sections described in the publication: Assessing accuracy, Impact of leaves, Impact of surveyor, Impact of environmental conditions, and Impact of tree accessibility.