Because SJCAM have not included physical zoom buttons on your cameras it is very important the touch screen zoom function is at least viable and useable. The touch screen buttons provided on the current 1.5.1 software release are too small and faint to see in bright sunlight. On future software releases, please consider enlarging and colouring these buttons so they are at least visible and useable outside (after all this is an action camera isnt it?). Also please consider separating these buttons from the settings icon. The close proximity of these functions on the screen means the settings function is easily inadvertently activated instead of the zoom out function which is very frustrating.