TRACKING
IVY+ tracks your movement with a 3-axis accelerometer and your heart rate data with an optical heart rate monitor while Leaf uses the 3-axis accelerometer as well but does not have the heart rate monitor.
This means that the Leaf will track your activity and sleep automatically and sync that information with the app once prompted while the Ivy tracks your heart rate data as well. All the information IVY+ tracks with the optical heart rate monitor is available through the Readiness screen - heart rate, respiratory rate, resting heart rate and cardiac coherence.
TEMPERATURE TRACKING
The biggest difference between IVY+ and our other devices is that IVY+ takes a minute-by-minute reading of your body temperature from the skin on top of your wrist. By doing this, you can get a picture of the changes in your body and cycle.
DESIGN
Leaf can be worn in three different ways - as a clip, necklace, and as a bracelet, whereas Ivy can only be worn as a bracelet due to the optical heart rate monitor.