The important thing is to firstly describe what they do differently. The Fitbit focusses very much on the details of an exercise routine including having a display showing instant heart rate and steps, whilst the Oura Ring focusses on baselining health data taken during sleep (a controlled environment) and then showing trends that change based on certain stimuli which you add tags for during the day (including your exercise routine).
The ring uses infrared technology vs most wrist activity trackers which use green light, and the ring measures on the underside of the finger (like hospitals do) vs activity trackers which measure on the top of the wrist.
They are both going to give you overviews of your daily activity. Whilst the Fitbit may show the heart rate throughout the day and night, it does not show heart rate variation, temperature variation or average respiration. So neither is really a direct competitor of the other – they serve different purposes.
In a week’s time I’ll be showing more of the trend information from the ring as well as what I receive as reports.
See the screenshots with descriptions at https://photos.gadgeteer.co.za/index.php?/category/ouraring
