How I boosted my VO2 Max fitness to 'excellent' on my Garmin watch

VO2 Max is the key metric all smartwatches use to determine how fit you are. Here's how I boosted my score from "Good" to "Excellent" in just a couple of months.

source https://www.androidcentral.com/wearables/how-i-boosted-my-vo2-max-score-on-my-garmin-watch