(Image credit: Future)

I test fitness tech for a living, and two of the newest products on my wrist right now are the Garmin Forerunner 70, Garmin’s latest, entry-level running watch, and the Fitbit Air, a $99 screenless fitness tracker. To see how the affordable Fitbit compared to Garmin’s $249 Foreunner 70, I strapped both to my wrist and headed out for a 4-mile (6.4-kilometer) run.Of course, to truly place the two watches head-to-head, we’d need to do more extensive testing, and we will, but after seeing what happened when my colleague Dan took these devices on a walk test, I was intrigued and ready to test for myself. Read on to find out more.Fitbit Air vs Garmin Forerunner 70: The main differences Of course, before we dive into my results, it’s worth pointing out the very obvious differences between the two fitness trackers. Firstly, from a price perspective, the Fitbit Air is $99/£85, and the Garmin Forerunner 70 is $249/£219.The Fitbit Air is completely screenless, like the Whoop 5.0 or the Oura Ring 5; it’s designed to disappear and silently track all your health metrics completely. To check on any progress, you’ll need to use the Google Health app. The Garmin Forerunner 70 has a 1.2-inch AMOLED touchscreen. You’ll be able to use the watch to check your stats on the run and your smartphone notifications throughout the day.