SaunaBox Solara vs Sun Home Solstice 1-Person (2026): Full Spectrum or Far Infrared Only?

The SaunaBox Solara and the Sun Home Solstice™ 1-Person are both single-person indoor infrared cabins sold in the US right now. The Solstice 1 is the cheapest sauna Sun Home makes. It is $4,999. The Solara is $2,599. That is a $2,400 gap for two boxes that go in the same corner of the same spare room. Here is every published number from both brands, with the source named for each one.

How do the SaunaBox Solara and Sun Home Solstice 1 compare on published specs?

Direct answer

The Sun Home Solstice 1 costs $4,999 and the SaunaBox Solara costs $2,599. That is a $2,400 gap. The Solstice is a heavier eucalyptus cabin with a 7-year cabinetry and heater warranty, and it needs a dedicated 20-amp circuit. The Solara adds near and mid infrared plus a 660nm and 850nm red light panel, runs on a standard outlet, and publishes an Intertek IEC 62233 EMF certificate. Sun Home states in their own words that the Solstice is far infrared only with no red light therapy.

What is the real difference between the Solara and the Solstice 1?

Direct answer

The real difference is what the extra $2,400 buys. On the Solstice you get more cabin. That means 428 lbs of eucalyptus, a taller box, a published interior spec and a 7-year warranty. You do not get more light. The Solstice is far infrared only with no red light therapy. The Solara spends its money on the emitters instead, in a 172 lb cabin that plugs into a normal outlet.

This is not a good sauna against a bad sauna. It is a furniture-first sauna against an emitter-first sauna.

Sun Home is open about the trade. They call the Solstice the "Lowest-priced premium-build Sun Home." What they cut to hit that entry point is the heat technology. Full-spectrum heaters live on the Equinox, Eclipse and Luminar. Red light lives on the Eclipse and the Pod. The Solstice gets neither.

SaunaBox made the opposite trade. The Solara is smaller, lighter and built in hemlock. What it carries is the full wavelength set plus a dedicated red light panel, in one cabin, at $2,599.

So the question is not "which one is better." It is "am I paying for the box or for what is inside it."

Is the Sun Home Solstice 1 a full-spectrum infrared sauna?

Direct answer

No. It is far infrared only. Sun Home says so on their own site: "Equinox is the stronger sauna on specs: it delivers full-spectrum infrared (near + mid + far) vs. the Solstice's far-infrared only." The Solstice product page lists "Heaters: 8 FIR." Full-spectrum heaters sit on Sun Home's Equinox, Eclipse and Luminar lines instead.

This matters because "infrared sauna" and "full-spectrum infrared sauna" get used as if they mean the same thing. They don't. Plenty of cabins between $4,000 and $6,000 are far infrared only. The word "premium" describes the cabinetry budget, not the wavelengths.

Sun Home deserves credit here. They state it plainly instead of burying it. Their collection page repeats it: "Equinox and Solstice do not include RLT." Most brands would never write that about their own product.

Does either sauna include red light therapy?

Direct answer

Only the Solara. It has a built-in medical-grade red light panel at 660nm and 850nm on a V2 swivel mount, so the light can be aimed at one area. Sun Home states the Solstice does not include red light therapy. In their range, red light is standard on the Eclipse and the Pod, and an add-on on the Luminar.

Watch the word "chromotherapy" here. It is where most buyers get confused. Both cabins have it. Sun Home calls theirs "Medical-Grade Chromotherapy" and the Solara has a 10-color system. Chromotherapy is colored ambient LED lighting. It sets the mood inside the cabin.

Red light therapy is something else. It is a specific pair of wavelengths at a delivered intensity. 660nm sits in the visible red band, 850nm in the near infrared band. Those two are the most studied in photobiomodulation research. A colored LED strip that can turn red is not a 660nm therapy panel.

If red light is part of why you are buying, the fair comparison shifts. It is the Solara at $2,599 against a Sun Home Eclipse 2 at $9,999 or a Sun Home Pod at $6,599. Those are the models in their range with an integrated red light system.

How does EMF compare between the Solara and the Solstice 1?

Direct answer

The two brands answer the EMF question in two different ways. The difference is the method, not the number. Sun Home publishes a figure: "0.5 mG." SaunaBox publishes a certification: "Low-EMF Verified by Intertek® IEC 62233 Certified," with the test report linked on the product page. A bare milligauss reading and a standards-based certificate are not the same kind of evidence. You cannot subtract one from the other.

How hot does each sauna get, and how fast does each heat up?

Direct answer

The Solstice 1 is the hotter cabin on paper at 165°F. Sun Home publishes that figure in their model comparison article, not on the Solstice product page. The Solara publishes an adjustable range of 77° to 150°F. Neither brand publishes a heat-up time. Sun Home says "heat up time is dependent on ambient temperature." SaunaBox states no figure either.

Worth knowing that infrared cabins are not judged the way traditional saunas are. Infrared warms the body directly rather than heating the air, so air temperature is only one input into how a session feels. That is also why a traditional Finnish sauna runs at 190°F and up. Different mechanism, different number. If a 200°F dry heat room is what you want, infrared is the wrong category. A stove sauna like the SaunaBox Forge is the right one, and it is excellent at exactly that.

On heat-up time, neither brand will give you a number. So the only fair move is to look at the inputs. This calculation is ours. Neither company publishes it.

The math is simple. The Solara is 1,600W in a 35″ × 37″ × 63″ box. That is 47.2 cubic feet, so 33.9 watts per cubic foot. The Solstice 1 is 1,350W in a 37.8″ × 39.8″ × 77.7″ box. That is 67.6 cubic feet, so 20.0 watts per cubic foot. The Solara puts about 70% more power into every cubic foot.

One caveat, and it matters. Both figures use exterior dimensions, because exterior is all both brands publish. Sun Home also publishes an interior volume of 44.0 cubic feet, which is 30.7 watts per cubic foot against its own interior. SaunaBox does not publish an interior dimension, so the same math cannot be run for the Solara. Exterior against exterior is the only like-for-like available. Treat it as a directional signal, not a stopwatch.

Do you need an electrician to install either sauna?

Direct answer

The Solara plugs into a standard 110V household outlet with an 8-foot cord. No electrician. The Solstice 1 does not. Sun Home's spec sheet says it "Plugs into a 120v / 20 amp dedicated circuit and outlet" with a NEMA 5-20 plug. A dedicated 20-amp circuit is not what sits behind most bedroom walls. For many buyers that is an electrician visit on top of the $4,999.

This is the line item most comparison charts skip. It is also the one that surprises people after the pallet lands.

A NEMA 5-20 receptacle has a T-shaped neutral slot. It is a physically different outlet from the 5-15 in a typical bedroom, and it has to be on its own circuit. In a finished house that means new cable from the panel, a new breaker and a new receptacle. It is not a huge job. It is not zero either, and you cannot do it the afternoon the sauna arrives.

The Solara sidesteps that. 1,600W at 110V draws roughly 14.5 amps, inside a standard 15-amp circuit. SaunaBox states that no electrician is required. For a renter this row is close to decisive. You cannot install a dedicated circuit in an apartment you do not own.

How much room does each sauna really take up?

Direct answer

The Solara takes 9.0 square feet of floor and stands 63 inches tall. The Solstice 1 takes 10.4 square feet and stands 77.7 inches tall. Sun Home also asks for clearance on top of that: "leaving 4-6 inches around the sauna and 8-10 inches above the roof." With that clearance, the Solstice needs roughly 16.5 square feet and about 86 inches of ceiling.

Read that clearance line twice if your ceiling is low or sloped. A standard 8-foot ceiling clears it. A basement with ducting does not automatically. SaunaBox publishes no clearance requirement for the Solara, which is a gap on our page rather than a claim of zero. Ask before you plan a tight alcove.

The other number that decides where a sauna lives is weight. The Solstice 1 is 428 lbs assembled. The Solara is 172 lbs and holds up to 300 lbs of occupant. If it has to go upstairs, 256 lbs is a large difference. One person will not reposition the Solstice. The Solara comes back apart into four panels.

How do the wood and build materials compare?

Direct answer

Sun Home builds the Solstice 1 from "Eco-certified Kiln-dried Eucalyptus." They call it "the most durable hardwood" and say it "responds extremely well to heat." SaunaBox builds the Solara from "100% Canadian Hemlock," described as low in resin, resistant to warping and hypoallergenic. Both are legitimate sauna woods. Eucalyptus is the denser and pricier choice, and it is part of why the Solstice costs more.

Sun Home wins this row and it would be dishonest to dress it up. Kiln-dried eucalyptus is a hardwood. It is heavier and more dimensionally stable under repeated heat cycling. Sun Home also publishes a 7% moisture content figure, which is more detail than most brands give about wood at all.

Canadian hemlock is the more common cabin wood here, for good reasons. It is low in resin, and resin is what produces odor and sap bleed when wood is heated over and over. It is also light, which is why the Solara weighs 172 lbs.

Where it shifts is what has been tested. SaunaBox publishes an Intertek report covering 20 individual components. Plastics, metals, wiring and structural materials, screened for lead, cadmium and phthalates against California Prop 65 limits. Sun Home publishes a VOC result instead, tested by LA Testing under EPA Method TO-15. Different tests, different questions. One asks what is in the parts. The other asks what comes off into the air. Neither brand publishes both.

How does assembly and delivery compare?

Direct answer

The Solara ships as four pre-assembled panels with pre-installed locking clips. It goes together in under 30 minutes with no tools. The Solstice uses Sun Home's "Magne-Seal system" and "requires no power tools and zero screws or nails," but Sun Home publishes no assembly time. Both arrive on a pallet by freight. The 256 lb weight difference is what decides how hard your delivery day is.

Neither is a flat-pack you fight with a hex key for a weekend. Both brands engineered the panel connection so you are not screwing a cabinet together. Sun Home's magnetic seal approach deserves credit.

SaunaBox publishes the delivery detail and it is worth reading first. The Solara arrives curbside on a pallet in two boxes totalling around 220 lbs. The driver lowers it to ground level. In-home delivery and assembly cost extra. The page lists free shipping and delivery in 7 to 12 days. Sun Home lists "Free Shipping Included." At 428 lbs assembled, plan for a second pair of hands either way.

What certifications does each brand actually publish?

Direct answer

SaunaBox publishes two Intertek documents for the Solara and links both as PDFs on the product page. One is an IEC 62233 EMF certificate. The other is a California Prop 65 report covering 20 components. Sun Home names Vitatech Electromagnetics for EMF and LA Testing for VOC. Those results sit in their editorial pages, not on the Solstice product page.

Here is the rule for reading any certification badge in this category. From any brand, including this one. A certificate has a scope, and the scope is the whole claim. It belongs to one product, tested for one thing, by one lab. It does not travel across a catalog because the logo sits in the footer.

An example from our own site, since demanding this of a competitor and not ourselves would be cheap. The SaunaBox certifications page lists OEKO-TEX, and it states the scope right there. It certifies the SaunaBox GO tent. It is not a Solara certification and it is not used as one here. The same page attributes PFAS-free testing to the Pulse sauna fabric, not to the Solara. The Solara's own certifications are the two Intertek documents named above, plus the "Certified Free of Toxic Heavy Metals & Phthalates" claim that comes out of the Prop 65 testing.

Apply the same reading to Sun Home. Their EMF and VOC testing is real and their labs are named, which is more than much of this industry does. But some figures that circulate about Sun Home come from their full-spectrum models, not the Solstice.

The practical version: ask for the document, not the badge. Then read page one, where the product name and the test scope are printed.

What warranty does each sauna come with?

Direct answer

Sun Home publishes the stronger warranty and it is not close. The Solstice 1 carries a "limited lifetime warranty (7 years) on cabinetry and heaters, and 3 years on controls." Sun Home adds that their heaters have "an estimated operational life of at least 30,000 hours." SaunaBox publishes warranty terms on the Solara product page. Get the current terms in writing before you buy.

This row goes to Sun Home. Seven years on cabinetry and heaters is a real commitment and part of what the price buys. If long coverage is what lets you sleep at night, that is a legitimate reason to spend more.

One caution that applies to every brand here. A warranty headline and a warranty document are different objects. Parts coverage is not labor coverage. Labor coverage is not freight coverage on a 428 lb cabinet. Ask three things before you hand over a card. What is covered. For how long. Who pays the freight.

What does each sauna cost per session?

Direct answer

At four sessions a week over five years, which is 1,040 sessions, the Solara works out to $2.50 a session. The Solstice 1 works out to $4.81. At three sessions a week it is $3.33 against $6.41. Electricity is a rounding error next to that. SaunaBox publishes roughly $0.14 for a 30-minute session at the US average rate. Sun Home publishes no running cost figure.

Those per-session numbers are ours, from the purchase price divided by an assumed session count. Change the assumption and both move together, so the ratio is the useful part. On any schedule you keep, the Solstice 1 costs about 1.9 times as much per session.

The electricity figure is SaunaBox's own. "A 30-minute session consumes approximately 0.8 kWh, costing roughly $0.14 at the US average residential electricity rate of ~17.65¢/kWh." SaunaBox notes rates run from about 11¢ to 43¢/kWh across US states. At four sessions a week that is around $29 a year. Not the number that decides this purchase.

One more line in the ownership math applies only on the SaunaBox side. SaunaBox is a TrueMed® partner, so the Solara may be eligible for purchase with pre-tax HSA or FSA funds for qualified buyers. Eligibility comes from having the account plus a Letter of Medical Necessity from a licensed provider, at any age. It is not automatic. The Solstice product page does not mention HSA or FSA. If you have funds sitting in an HSA, that is worth an hour of your time.

What are the Sun Home Solstice 1's genuine strengths?

Direct answer

The Solstice 1 wins on warranty, wood and cabin size. Seven years on cabinetry and heaters is the longest coverage in this comparison. Kiln-dried eucalyptus is denser than hemlock. It runs 15°F hotter, it is taller, and Sun Home publishes an interior and bench dimension that SaunaBox does not.

• 7-year warranty on cabinetry and heaters, plus 3 years on controls. The longest here by a wide margin.
• Kiln-dried eucalyptus, a denser hardwood than hemlock, with a published 7% moisture content.
• 165°F published maximum against the Solara's 150°F.
• A taller cabin at 77.7″, with published interior and bench dimensions.
• Published heater count. "Heaters: 8 FIR" is more detail than the Solara page gives.
• Named third-party labs for EMF and VOC, with a stated 3-foot seated measurement position.
• Blaupunkt Bluetooth surround sound and a 24-hour timer with reservation mode.
• Sun Home states the Solstice's limits in their own words on their own site. That is rare.

What are the SaunaBox Solara's genuine strengths?

Direct answer

The Solara wins on wavelengths, price and install. It is full spectrum with a built-in 660nm and 850nm red light panel, where the Solstice is far infrared only with no red light. It costs $2,400 less, runs on a standard outlet, weighs 172 lbs, and publishes a downloadable Intertek IEC 62233 EMF certificate.

• Full-spectrum infrared. Near, mid and far, published on the specification block.
• Medical-grade 660nm and 850nm red light built in, on a V2 swivel mount. The Solstice includes none.
• $2,599 against $4,999. About half the cost per session on any usage assumption.
• Standard 110V household outlet, 8-foot cord. No dedicated circuit and no landlord conversation.
• Ultra-low EMF certified to IEC 62233 by Intertek, with the report downloadable from the page.
• Intertek Prop 65 report on 20 components. Certified free of toxic heavy metals and phthalates.
• 172 lbs and four clip-together panels. Under 30 minutes, no tools, and one person can move it later.
• 9.0 square feet of floor and 63 inches tall. Fits a bedroom, an office or an apartment corner.
• May be eligible for HSA or FSA funds through TrueMed® for qualified buyers.
• Published running cost of roughly $0.14 per 30-minute session at the US average rate.
• 4.6 out of 5 from 154 published reviews on the product page as of August 2026.
• One tree planted through Veritree for every Solara sold.

Who should buy the Solara and who should buy the Solstice 1?

Direct answer

Buy the Solara if you are paying for what the heaters emit. It also wins if you rent, want a standard-outlet install, or need the sauna to stay movable. Buy the Solstice 1 if you are paying for the cabinet and the coverage. It fits a buyer whose deciding factor is the 7-year warranty, with a permanent spot and a dedicated circuit available.

Frequently asked questions

Sources and references

1. SaunaBox Solara 1-Person Full Spectrum Infrared Sauna product page, specifications block and FAQ -- saunabox.com. Checked August 16, 2026.
2. SaunaBox safety certifications page -- saunabox.com. Checked August 16, 2026.
3. Sun Home Solstice™ 1-Person Indoor Infrared Sauna product page and spec sheet -- sunhomesaunas.com. Source for price, dimensions, weight, heater count, wattage, electrical requirement, clearance, wood type, EMF figure, assembly method and warranty. Checked August 16, 2026.
4. Sun Home Sauna Comparison (2026): Which Model Is Right for You? -- sunhomesaunas.com. Source for the Solstice being far infrared only, the 165°F maximum, and the eucalyptus moisture figure. Checked August 16, 2026.
5. Sun Home infrared sauna collection page -- sunhomesaunas.com. Source for "Equinox and Solstice do not include RLT," the 7-year warranty statement, and the LA Testing VOC result. Checked August 16, 2026.
6. Sun Home Saunas vs Other Brands (2026): How We Compare -- sunhomesaunas.com. Source for the Vitatech Electromagnetics attribution, the 0.3-0.9 mG at 3-foot seated figure, and the statement that measurement conditions differ between brands. Checked August 16, 2026.
7. IEC 62233 Ed. 1.0:2005, "Measurement methods for electromagnetic fields of household appliances and similar apparatus with regard to human exposure" -- International Electrotechnical Commission. The standard defines the sensor, the measuring method, the operating mode of the appliance under test, and the measuring distance and position. Its methods are valid from 10 Hz to 400 kHz. Available through the IEC webstore and national standards distributors.
8. SaunaBox Solara IEC 62233 EMF test report (Intertek) -- linked on the saunabox.com Solara product page.
9. Laukkanen JA et al. Cardiovascular and Other Health Benefits of Sauna Bathing: A Review of the Evidence. Mayo Clinic Proceedings, 2018.
10. Hamblin MR. Mechanisms and applications of the anti-inflammatory effects of photobiomodulation. AIMS Biophysics, 2017.

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Disclaimer: This content is for informational and comparison purposes only and should not be construed as medical advice. All specifications reflect what each brand published on their own website as of August 16, 2026. Calculated figures are labeled as such where they appear. Verify current specifications, pricing and warranty terms directly with each brand before purchasing. If you have any underlying health conditions, consult a qualified healthcare clinician before beginning sauna therapy.