This is presumably because the Sense 2 has two rear sensor panels, where the original Sense had just one. The big change for this generation is that the stress sensor tech can also work all day, passively. To see either of these at their best -ECG and EDA - you have to sit still for at least 30 seconds with your hand over the display, so your skin is in contact with those front-mounted sensors. Fitbit’s EDA sensor looks at the electrical conductance of your skin, to estimate your sweat levels. Unusual results could be a sign of an arrhythmia, an indication to get checked out my a medical professional. The ECG feature can map out your heart’s sinus rhythm better than the optical heart rate reader seen in both of these watches. Both of these were present in the original Fitbit Sense, and they monitor changes in the body’s electrical signals. These enable two of the Sense’s stand-out features, EDA stress tracking and ECG heart rate readings. They both have a heart monitor and GPS, but only the Fitbit Sense 2 has a set of little metal electrodes on the watch’s front and back. Let get down to the real feature disparities between these two watches. Fitbit Versa 4 vs Fitbit Sense 2: Features and Battery life Look dead close and you can see a wee bit of pixelation, but these are decent screens with enough brightness to stand up well on a sunny day. The Versa 4 and Sense 2 screens are more or less identical, 1.58-inch OLED panels with resolution of 336 x 336 pixels. Both have a physical button, which works out much better than the touch panel of the last-gen models.
They have curved glass screen protection, a band of aluminum around the sides. There’s much more metal on the back thanks to the Sense 2’s additional electrodes, which account for the Sense’s higher price.Īs such, the Fitbit Versa 4 looks fractionally better than the Sense 2 in our opinion. When its front catches the light you’ll be able to see a slightly metallic-looking border around the Sense 2’s screen. The visible differences between the two watches are all down to the additional sensors found on the Fitbit Sense 2. They are more of a square shape than an Apple Watch, more rounded-off than a Garmin Venu Sq.
The Versa 4 and Sense 2 are two very similar-looking watches with Fitbit’s characteristic ‘squircle’ chassis. (Image credit: Andrew Williams) Fitbit Versa 4 vs Fitbit Sense 2: Design and Display
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