Daily UI #004 Calculator

Hello !
Day 4 !
A calculator for Apple watch.
I know that having to swipe for "+ - * /" isn't the best pratice but I wanted to create a calculator with bigger buttons to avoid errors !

Here is a graph which shows the number of errors depending on the button's size: https://i.stack.imgur.com/DEY9X.png

I prefer a feedback than a like ;)