Can I make the metric text size larger?
To make the metric font larger you can set the row height in the screen layout to greater than 1.
However, the metric text is already scaled to be as large as possible within its cell—accounting for both width and height—while still fitting every type of metric.
Each field needs to display any metric (speed, elevation, power, etc.), and some of them can take up more space than others — for example, elevation can be five digits long. To keep the layout clean, the app sizes all metrics based on the biggest values they might need to show, rather than stretching each one individually.
If every field scaled its text only to its current value, they would all end up slightly different sizes, which would look messy. The app also has to leave enough padding so that numbers don’t run into the edges or overlap other fields.