Comparing Copper Testing Kits | Which One Is Easiest To Read?

I took a couple of different copper testing kits to compare how easily it is to decipher the color code reading.

Below are the test kits I used in this video:
Test Strips: https://amzn.to/44LnRc1
Test Drops: https://amzn.to/3DybRhR

Website: https://easyclearpool.com