Sila Nano

The first next-gen battery material in market.

The lithium-ion batteries that sustain our lives aren’t equipped to power our future. Sila changes that. Our engineered silicon battery material offers market-proven, boosted performance and quality control—without compromising cycle life, power, or safety.

WHOOP 4.0 is one of the most advanced 24/7 health and fitness wearables—and it’s powered with Sila science. Our partnership marks the most significant chemistry improvement in lithium-ion batteries to reach the market in 30 years. And the result unlocked a sleeker device, advanced biometric features, and a new, category-defying form factor for WHOOP 4.0.