Press Kit

Everything you need to cover Eternal and Eternal Band

About Eternal

Eternal is a hardware company building the first solar-powered health trackers that never need charging. Our debut product, Eternal Band, is a sleek wearable bracelet that tracks sleep, activity, and vital signs while charging itself from ambient light.

Founded by researchers from MIT and CMU, Eternal is on a mission to create technology that works for people, not the other way around.

Quick Facts

Company Eternal Inc.

Product Eternal Band

Category Solar-powered health tracker

Shipping Fall 2026

Price Preorder pricing available

Website Eternal.xyz

Product Highlights

Self-charging: Runs entirely on ambient light, no cables needed
60+ day battery reserve: Works for months even without any light
Research-grade sensors: Tracks heart rate, HRV, temperature, steps, and sleep
Ultra-lightweight: Only 7 grams
Waterproof: IP68 rated, no charging port to corrode
20+ year lifespan: Built to last, not to be replaced
No subscription: All features included, forever