The 8sense posture-control device looks like a skinny USB stick. You simply clip it onto your collar with the sensor touching your spine. It’s operated through an accompanying app – each time you put it on, you connect the app and the device via Bluetooth, then calibrate it, while maintaining good posture. Throughout the day, the device will monitor your posture as well as how long you’ve been sitting and in what position. If you’re slouching or sitting for too long, it will buzz to alert you.
There are two settings: posture and motion. Posture looks at whether you’re maintaining good posture and will buzz when you’re not. We found it was very sensitive – for example, it buzzed when we leaned to one side without realising it. While in motion mode, the device will buzz when you’ve been sitting down or in one position for too long. It will also remind you to walk around and identify stretching exercises that are designed to counteract “bad positions”. It can be distracting when you’re just getting into a moment of deep concentration, though.