Fitbits Sense 2 amps up stress tracking

After several leaks and a not-so-subtle teaser yesterday, Fitbit officially announced what we all knew was coming: the Sense 2, the Versa 4, and the Inspire 3. And while Fitbit is introducing new software alongside the new hardware, this update is more about incremental improvements and refining what you already know rather than launching anything revolutionary. Oh, and yes, the Sense 2 and Versa 4 have physical buttons!

The $299.95 Sense 2 and $229.95 Versa 4 both have minor design tweaks. For starters, both are thinner and lighter. The button on both devices also sits higher up, as does the area where you attach straps. Meanwhile, the Sense 2 incorporates its health sensors into the device’s display using “vaporized electrodes.” That...

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