The Fitbit Sense is a new line from the fitness tracking company, and one that attempts to re-align Fitbit as a health brand instead.

While the Fitbit Sense looks like another Fitbit smartwatch, it's actually a health data powerhouse, brimming with sensors designed to put you in touch with the inner workings of your body and mind.

It's a leap forward in terms of wearable technology and what it can offer - and has more sensors and health data than the Fitbit Versa 3, Fitbit Charge 4 or Fitbit Inspire 2.

But it's been one tough device we've ever had to evaluate.