WHOOP Strap 3.0 offers everything WHOOP Strap 2.0 does plus the following
5 Day Battery Life
Bluetooth Low Energy Compatible: Robust connectivity to your favorite fitness devices.
ProKnit Band: Stretchy, sturdy, engineered for a high-performance lifestyle. The ProKnit band is lined with high-tenacity filaments that form an active layer between the band and the surface of the skin. This layer absorbs sweat and displaces pressure for maximum comfort. ProKnits come in new colors including Onyx, Carbide, and Arctic.
Strain Coach: Strain Coach functionality provides an activity level recommendation for you at any point during the day based on your recovery. When you start an activity, WHOOP will then show you in real-time whether you need to push harder, whether you’ve reached your Strain goal, or whether you’re overdoing it.
WHOOP Live: This feature allows you to overlay real-time Whoop data onto videos. Whether you’re recording alone or with a trainer or friend, you can now see how your Strain, HR, and Calories evolved over the course of any workout or sport. Save the videos, analyze them, and even share them with friends.