Instead of Apple Watch: Fitbit Sense in a short test

Fitbit’s latest Smartwatch Sense focuses on health data: It measures blood oxygen saturation, skin temperature and pulse and is intended to detect stress, among other things. Similar to the Apple Watch, there is also a 1-channel ECG on board, as well as acceleration sensors and GPS for recording steps and recording outdoor activities.

The aluminum case of the square smartwatch from the Google subsidiary is about the size of an Apple Watch 40 mm – the smaller of the two watch models offered by Apple. Your AMOLED touchscreen has a sharp resolution of 336 × 336 pixels. Like the Apple Watch Series 6, it has an always-on display that hides information when inactive and reduces the brightness. You operate the watch with the touchscreen and the contact areas on the edge of the display.

In addition to acceleration sensors, a GPS sensor helps with training. In contrast to the Apple Watch, the watch does not recognize falls, but offers other health functions such as sleep tracking.

In addition to a heart rate monitor and a skin temperature sensor, the Sense has a single-channel EKG and a pulse oximeter that measures blood oxygen saturation (SpO2 value). Unlike the Apple Watch, the Sense does not record the SpO2 value at the push of a button, but at regular intervals, and only shows it after you have worn the watch to sleep. The pulse and SpO2 values ​​corresponded to those of a Series 6. When counting steps, it showed more steps than the watch and was slightly off.

Sense (Smartwatch)




40,5 × 40,5 × 12,4 mm


33 g

System requirements:

iOS from 12.2, Android from 7.0, Bluetooth

Price (manufacturer):

330 €, subscription: 8.99 € / month or 79.99 € / year

The scythe can also measure the electrical conductivity of the skin (EDA) when you put your hand on the display. In conjunction with the other sensors, the watch is designed to detect physical stress when there is a change in conductivity. The scale shows values ​​from 0 to 100. Fitbit only provides detailed analyzes of the stress level and sleep analysis if you take out a subscription. This also offers video training and mindfulness exercises, but costs 9 euros per month or 80 euros per year after a six-month test phase.

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Fitbit provides apps through its own store. Compared to the Apple Watch, the selection is poor. There are only a few fitness apps like Strava or Runkeeper there. Music cannot be loaded onto the watch. It only controls Spotify and Deezer on the iPhone. The Sense is also not so closely interlinked with iOS: It can synchronize the calendar, but it cannot send emails or make calls. It does not support Apple services such as iMessage or HomeKit.

The scythe is charged via a proprietary USB cable that is magnetically attached to the underside. Fitbit names a six-day term; In the test, it lasted about four days without an always-on display. An Apple Watch only lasts 18 hours.

The Sense, which costs 330 euros from the manufacturer, speaks for the abundance of sensors and the good battery life. It is also significantly cheaper than the Series 6. If you want a deeper iOS integration, you can use the Apple Watch.


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