Saunabox SmartSteam Pro with Red Light vs. Smartmak: The Steam + Red Light Showdown

The portable steam sauna market has expanded rapidly, and the addition of red light therapy to steam units has created a genuinely compelling new product category. Two products that represent opposite ends of this market are the Saunabox SmartSteam Pro with Red Light Therapy and the Smartmak Portable Steam Infrared Sauna with 660nm Red Light. The SmartSteam Pro sits at the premium end; the Smartmak targets budget-conscious buyers. Both promise steam heat plus red light in a portable tent format. Here is how they actually compare.

Quick Comparison: SmartSteam Pro vs. Smartmak at a Glance

Build Quality and Materials

The SmartSteam Pro's most significant advantage is its material certification stack. The tent fabric is independently tested and certified micro-plastics free and VOC-free, meaning no harmful off-gassing during your session. It is manufactured in an FDA-registered facility and carries an IP65 waterproof rating, RoHS compliance, and REACH compliance — the European Union's chemical safety standard. This is an unusually thorough certification set for a portable sauna.

The Smartmak uses a polyester/Oxford fabric construction. It is not independently certified for micro-plastics or VOCs. For users who are health-conscious enough to invest in a sauna for detoxification purposes, the irony of sitting in a tent that off-gasses synthetic chemicals is worth taking seriously. The SmartSteam Pro eliminates this concern entirely.

Steam Performance

Both units use a separate steam generator that connects to the tent via a hose. The SmartSteam Pro's 1600W generator produces steam quickly and maintains consistent humidity throughout a session. The internal temperature reaches 130–140°F with near 100% humidity — a combination that subjectively feels more intense than dry heat at the same temperature, because water vapor carries more heat energy to the body than dry air.

The Smartmak's 1100W–1500W generator produces comparable steam output, though users report slightly longer heat-up times. The SmartSteam Pro adds Bluetooth app control via iOS and Android, allowing you to set session parameters from your phone without reaching into the tent. This is a genuine quality-of-life improvement that the Smartmak does not offer.

Red Light Therapy: Medical-Grade vs. Consumer-Grade

Both units include a red light panel, but the quality difference is meaningful. The SmartSteam Pro uses a 660nm–850nm dual-wavelength medical-grade panel. The 660nm wavelength targets skin health and cellular regeneration; the 850nm near-infrared wavelength penetrates deeper and supports muscle recovery and circulation. Having both wavelengths in a single panel is significantly more therapeutically complete than a single-wavelength 660nm lamp.

The Smartmak includes a 660nm red light lamp only. Single-wavelength 660nm light provides surface-level benefits but lacks the deeper tissue penetration of 850nm near-infrared. For users who are investing in red light therapy as a serious wellness tool, the SmartSteam Pro's dual-wavelength panel is the more clinically relevant option.

Certifications and Safety

This is where the gap between the two products is most pronounced. The SmartSteam Pro's certification list — micro-plastics free, VOC-free, FDA-registered facility, IP65, RoHS, REACH — reflects a manufacturer that has invested seriously in independent safety verification. The Smartmak carries basic ETL listing for electrical safety but does not publish independent material safety certifications.

For users who are using a sauna specifically for health and detoxification, the material safety of the tent itself is not a trivial concern. Synthetic fabrics heated to 140°F can off-gas plasticizers and VOCs. The SmartSteam Pro's independent certifications provide meaningful assurance that this is not happening.

Who Should Buy Each?

Final Verdict

This review is editorially independent. Sauna Reviewers does not accept payment for product placement. All comparisons are based on publicly available specifications, independent testing data, and hands-on evaluation.