The one missing feature that stopped me from buying a Fitbit Edge

As a reluctant smartwatch user that only puts a screen on my wrist for fitness and health tracking, minimalist trackers like the Google Fitbit Air and the new Fitbit Edge always grab my attention. Often, basic trackers skip the advanced sensors I value on premium smartwatches. In this regard, the Fitbit Edge is a breath of fresh air — it’s loaded with features, including ECG readings, skin temperature measurements, and blood-oxygen sensing.