5 infrared saunas here are rated by their makers for four people. 4 of the 5 show a price on the maker's own site; their regular prices run from $5,999 to $7,999, and some were on sale for less on the day we read them. Where a maker sells several configurations, the figure is the cheapest.
Read the seat count as the maker's ceiling and read the inside dimensions on each product page before you plan for the full group. Then compare the supply each maker lists with the circuit you have, and narrow by price and warranty.
Picks by the numbers
Each pick is the product that comes first on one figure its maker publishes, with the next ones on that figure after it. Choosing which figures to rank by is our editorial choice; the order on each is the makers' own numbers. None is a judgement of quality, we have not tested these products, and whether we earn a commission on a product never decides a pick.
Longest stated warranty (on at least part of the product):Golden Designs Dynamic Bergamo 4 Person (DYN-6440-01) (Golden Designs lists: 5 Year Limited Warranty: Golden Designs, Inc. under the Dynamic brand name warranties the wood, structure, heating elements, and electronics against defects in material and workmanship for a period of 1 to 5 years from the original date of purchase. Limited Lifetime Warranty of Sauna Products is 5 years for residential use and 1 year for commercial use on heating elements and electronics from the date of purchase. The wood structure has a 1 year limited warranty.); Finnmark Designs FD-3 Full Spectrum Infrared Sauna (Finnmark Designs lists: 10-Year Sauna Warranty. Our Spectrum Plus™ Incoloy heaters have a unconditional lifetime warranty.). Among the 3 of 5 that list this figure. Next on this figure: SunRay Saunas Cayenne 4-Person Outdoor Infrared Sauna (10-year structural · 1-year parts & electronics).
Where to buy the picks
Golden Designs Maxxus 4 Person (MX-K406-01)
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Golden Designs · seats 4 · far-infrared sauna · for indoor use · 120 V supply
$6,999 (goldendesigninc.com, 29 Sep 2026)
Natural Reforested Canadian Hemlock wood construction
5 Year Limited Warranty*: Golden Designs, Inc. under the Dynamic brand name warranties the wood, structure, heating elements, and electronics against defects in material and workmanship for a period of 1 to 5 years from the original date of purchase. *Limited Lifetime Warranty of Sauna Products is 5 years for residential use and 1 year for commercial use on heating elements and electronics from the date of purchase. The wood structure has a 1 year limited warranty.
Golden Designs · seats 4 · full-spectrum infrared sauna · for indoor use · 120 V supply
$7,999 (goldendesigninc.com, 29 Sep 2026)
Natural Reforested Canadian Hemlock Wood Construction
Prices are the price each maker's own site showed in US dollars on the date shown; the seller's page has the current price. Warranties and safety listings are the makers' own statements, cited on each product page. A price starting 'From' is the cheapest configuration a maker offers, which may leave out the heater or options. Every product here is sold by its maker on the maker's own site. Where a product page carries a paid link (to Amazon or another approved retailer), Saunakivi may earn a commission; no sort order or filter favours those products. We have not tested these products.