Use case: Count down 1 minute. I need to click on countdown timer. Fine. Then need to hit the few pixels by few pixels large arrow up to increase from 0 to 1 m

Use case: Count down 1 minute. I need to click on countdown timer. Fine. Then need to hit the few pixels by few pixels large arrow up to increase from 0 to 1 minute. That makes this essentially unusable in practise. It may work in a controlled environment where there is good light and a steady hand, but if I need this outdoors while walking, no way. Make those buttons bigger.