Fitbit

The Fitbit Air is not a smartwatch replacement. It can't ping your phone, surface texts or let you tap to pay for your coffee, and it falls short for those in-the-moment workout insights. If those things are important to you, you may have to move on or double up. And the $100 price tag means you feasibly can without breaking the bank. I'd probably wear both if I didn't have a looming backlog of wearables to test on my wrist once my testing period of the Fitbit Air is over. Yet it's the most accessible entry point into screenless health tracking so far, and a logical companion for existing smar

The best fitness tracker overall is the Fitbit Charge 6, which functions primarily as a fitness tracker but offers a few bonus features, too. Its SmartTrack function tracks your activity, supporting more than 40 types of exercise and keeping tabs on metrics such as steps, heart rate, calories burned and VO2 max.

The Fitbit Air covers the core health metrics you'd expect, including 24/7 heart rate monitoring, heart rate variability, SpO2 (blood oxygen level), temperature variation, sleep tracking and analysis, cardio load, training readiness, steps, distance and irregular heart rhythm notifications for atrial fibrillation detection. It also includes automatic activity tracking that you can confirm later in the app. The device is water-resistant up to 50 meters. One caveat: The Fitbit Air uses an older sensor setup than the current Pixel Watch 4, which includes a multipath optical heart rate sensor and

Both projects are exactly similar, except they use different sources to fetch your health data. The Fitbit version has a script that fetches your health data once you enter your Fitbit account's credentials, while the version for Garmin smartwatches uses Garmin Connect. Once the data is fetched from those servers, it is stored locally in an InfluxDB database. This data is then fed to Grafana for visualization. The idea is to set up a localized solution that can be self-hosted and is completely open source, unlike the official apps from these brands. If you're wondering, the visualization suppo