The mPulse SOLO is the tech-forward choice for solo infrared users willing to pay for full-spectrum heating and app-driven wellness programs. Its patented SoloCarbon heaters cover near, mid, and far infrared wavelengths — a genuine differentiator when most competitors only offer far infrared. The 240V requirement and near-$5K price tag are real barriers, but if you want the most versatile single-person infrared sauna on the market, this is it.