Failing to maintain proper posture as you work or play is not great for your health in the long run. Bad posture leads to pain and other problems as you get older. ALEX is a smart posture tracker that sits behind your neck and measures neck angle and head position. It vibrates when you slouch and coaches you towards a better posture.
ALEX has an app that lets you track your progress over time and see your posture in real time. Costs under $80 at this time.