Carbon 1 MK II Smartphone

Pioneering the impossible with Carbon Mobile, we built the world’s first smartphone made with a carbon fiber monocoque. Ultra-light. Durable. Iconic. Designed in Germany, the Carbon 1 MK II is more than a phone—it’s a proof of what sustainable materials and advanced engineering can achieve when bold vision meets execution.

The Carbon 1 MK II solved a core limitation in mobile hardware: how to make smartphones radically lighter and more sustainable without compromising performance. By pioneering a carbon fiber monocoque body—the first of its kind—it eliminated the need for internal aluminum, reducing weight to just 125g and thickness to 6.3mm. The real breakthrough came with HyRECM technology, a proprietary carbon composite that allows radio signals to pass through carbon fiber, solving a problem that kept this material out of consumer electronics for decades. This innovation not only disrupted material thinking in the mobile industry, but also marked a shift toward climate-conscious hardware—proving that sustainability, strength, and sleek engineering could coexist in one bold product.

In a world dominated by metal and glass, the Carbon 1 MK II emerged as a radical rethinking of what a smartphone could be. The challenge was clear: create a device that’s lighter, stronger, and more sustainable—without sacrificing performance, connectivity, or design. Traditional materials had reached their limits. So we turned to carbon fiber, a material known for its strength-to-weight ratio but long considered incompatible with consumer electronics due to its radio signal-blocking properties.

That’s where the breakthrough happened. With the development of HyRECM Technology (Hybrid Radio Enabled Composite Material), we engineered a carbon fiber composite that allows signals to pass through—solving a decades-old barrier. This made it possible to replace the internal aluminum skeleton with a single carbon fiber monocoque body, achieving ultra-lightweight construction (just 125 grams) and record-thin dimensions (6.3mm), while maintaining structural integrity.

But Carbon 1 wasn’t just about performance—it was a statement on sustainability. With less than 5% plastic content, a local production footprint in Germany, and ocean-bound plastic offsetting for every device sold, it became one of the most environmentally progressive smartphones ever made. The Carbon 1 MK II wasn’t only disruptive in its materials; it redefined how hardware startups can challenge incumbents—by building products that are uncompromising, responsible, and visionary.

‍

More Than a Smartphone—A Mission

Carbon 1 MK II wasn’t just about sleek engineering. It sparked a movement toward climate-conscious design in consumer electronics. It inspired a generation of hardware founders and innovators to rethink what’s possible when performance meets responsibility

‍

“We built Carbon 1 to prove that hardware doesn’t have to compromise between performance and sustainability. This was just the beginning.”

‍

‍