This smart ring promises to track your sleep, movement, and recovery. The wearable has a heart rate, temperature, and motion sensor. It can monitor sleep stages, heart rate, heart rate variability (HRV), and body temperature. One of the most interesting features of this ring that makes it different from other fitness trackers is that it comes with no screen. So you will get all of your notifications on the Ultrahuman app. Additionally, the Ultrahuman Ring offers up to 6 days of battery life. This makes it a fitness wearable you can wear for nearly a week. Moreover, you can combine your Ultrahuman Ring data with Ultrahuman M1, a continuous glucose monitoring platform. Furthermore, paired with the M1, the Ultrahuman Ring gives you deep correlations between your glucose data and your sleep, stress, and movement. You can now have your cake and burn it too.