Real-time inputs tell Endel about your current state, environment, and natural energy cycle – known as the circadian rhythm. This allows Endel to create soundscapes that are uniquely personal, and optimal, for you.
Natural light
Endel sees your outdoor natural light level from your location and compensates by adapting sound intensity to better match your body's circadian rhythm.
Heart rate
Endel adjusts soundscape tempos to your resting heart rate. When your heart rate becomes significantly higher or lower, Endel adapts the soundscape to help you realign.
Wake Up Time
Based on your most recent wake-up time, Endel uses this to make your circadian phases more accurate and personal.
Weather
Depending on whether it’s cloudy, sunny, or rainy outside, Endel reacts with personal sound layers.
Activity level
Activity-themed soundscapes react in real-time to your steps-per-minute, changing the intensity and complexity.