https://www.happyring.com/

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Price: FREE

Membership

Description:

Most sophisticated tracker ever

4 skin electrodes, 4 wavelengths of light, 3-axis movement tracking and 2 temperature sensors for 24/7 brain and body monitoring.

Next-gen biometric sensors

Designed with top neuroscientists to sense your stress level in real-time using electrodermal activity (EDA).

Industry leading sleep accuracy

Imagine having a clinical sleep lab on your finger every night. Happy Ring is proven to outperform any other tracker on the market by independent sleep researchers.

Always learning

Thanks to the power of adaptive AI, your readings keep getting more intelligent and personalized the longer you wear your Happy Ring.

Sleek as it is smart

Diamond-hard ceramic design offers style, comfort and durability.

The SELF Institute