
Sleep
How long, how deep, and what you need tonight.
Sleep, strain, recovery and food, read from the band you already wear. With Lumi, a coach who knows your numbers.





How long, how deep, and what you need tonight.

Strain, calories and heart-rate zones from every workout.

Your readiness each morning, from HRV and resting heart rate.

Snap a meal or scan a barcode. Lumi counts it.
Lumi reads your band every morning and answers anything, any time.
With your whole history behind every answer.
Ask out loud. Lumi answers out loud.
Guided breathing when you need to settle.
A plan each morning. A nudge to wind down at night.

Groups for friends and family. Competitions on steps, sleep, strain or recovery. Communities for everyone else.


Your data is never sold, and only used for your health. No ads. No tracking.
Black brings your own trainer, plans written for you, and a blood test on us.