Similarly, the only over-the-counter flu test you can buy in the US is disposable, requires AA batteries and costs $50.

Feels wasteful throwing the whole thing away, but I guess that’s normal for medical devices.

https://www.lucirabypfizer.com/

My company had us take the Ellume test, which was also over engineered as it was just a glorified one time use Bluetooth color sensor wrapped over a standard strip. I did start taking them apart and harvested several years' supply of CR2032 batteries though.