In late October 2026 I replied to several X users about consumer‑tech devices, sharing my personal stance and recommendations.
I love whoop but realize it is quite expensive.
Predominantly use it to understand my sleep, stress and breathing markers.
Never used fitbit air, so can't comment.
If its measurements are accurate, then it looks quite promising.
I won’t buy the iPhone Duo.
I think the apps are not customized for the screen experience and it will improve with the next iPad evolution, so I recommend waiting for the next version.
I said that it was copied and you can do better, trust yourself.