The Fitbit Versa 3 and Fitbit Sense both had a capacitive 'button' that made you squeeze to activate it made the watches look stylish, but the sensor strip proved more unreliable than a physical button in practice. I'm not sure how Fitbit pulled off this engineering wizardry, but given both displays are also the same size and resolution, you wouldn't be able to tell the watches apart if it weren't for the distinct color options. Shadow Grey / Graphite Aluminum Lunar White / Platinum Aluminum Blue Mist / Soft Gold Aluminumīlack / Graphite Aluminum Waterfall Blue / Platinum Aluminum Pink Sand / Copper Rose Aluminum Beet Juice / Copper Rose AluminumĮven though the Sense 2 has more sensors packed into it, it measures the same thickness on your wrist while also matching the Versa 4 in battery life.

Optical heart rate, blood oxygen, altimeter, accelerometer, ambient light, built-in GPS/GLONASS Optical heart rate, blood oxygen, electrical skin conductance (cEDA), multipurpose electrical (ECG), skin temperature, altimeter, accelerometer, ambient light, gyroscope, built-in GPS/GLONASS

Versa 2 vs sense