Echelon Smart Cold Plunge Soft Tub
A $599.99 inflatable soft tub that starts on ice and upgrades to a chiller when the habit sticks.
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QUICK VERDICT
The $599.99 answer to a $5,000 question: an inflatable soft tub that gets you plunging now and pairs with an $899.99 chiller later.
- Best for
- Budget buyers testing the cold habit at the lowest possible entry, and anyone planning to add the $899.99 Advanced Cold Chiller later instead of buying an all-in-one now.
- Skip if
- You already know you'll plunge daily, in which case one integrated chillered tub beats buying a tub and chiller separately, or you want published dimensions and warranty terms up front.
- Tier
- Entry
Echelon is the connected-fitness brand behind budget bikes and rowers, and its Smart Cold Plunge Soft Tub applies the same playbook to recovery gear: an inflatable tub Echelon describes as drop-stitched PVC with an anodized steel casing, holding up to 200 liters (52 gallons) of water, for $599.99.
Be clear about what $599.99 buys: a vessel. There is no chiller in the box, so on its own this is ice-run territory, bagged ice hauled for every single session, exactly like an Ice Barrel. The difference is the upgrade path. Echelon's Advanced Cold Chiller pairs with it at $899.99, which brings a no-ice, temperature-controlled setup to $1,499.98, still about half the price of an Inergize Elite Tub and less than a third of a base Plunge. A 1.0 HP Cold-Hot Chiller Pro at $3,999.99 adds heating with a manufacturer-stated 36-107°F range for buyers who want contrast in the same footprint.
Where it gives ground: the published spec sheet is thin, with no dimensions, weight, or warranty terms on the product page, and Echelon is new to cold plunge next to the dedicated makers. A soft tub also never stops being a soft tub; it will not read as furniture on a patio. The verdict by buyer: at $599.99 this is the cheapest credible way to find out whether you will actually plunge, with the $899.99 chiller waiting if the answer is yes. Committed daily plungers should skip the two-step and buy an integrated system once.
Budget buyers testing the cold habit at the lowest possible entry, and anyone planning to add the $899.99 Advanced Cold Chiller later instead of buying an all-in-one now.
You already know you'll plunge daily, in which case one integrated chillered tub beats buying a tub and chiller separately, or you want published dimensions and warranty terms up front.
Specifications
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Where this fits
Echelon Fitness Smart Cold Plunge Soft Tub cross-shops across several editorial surfaces on this site: the full brand catalog, the price band it qualifies for and the in-depth guides for its category.
Echelon Fitness Smart Cold Plunge Soft Tub - buyer FAQ
Does the Echelon Smart Cold Plunge Soft Tub include a chiller?
No. The $599.99 price is the tub alone, and without a chiller you are buying bagged ice for every session. Echelon's Advanced Cold Chiller pairs with it at $899.99, bringing a chillered setup to $1,499.98. There is also a 1.0 HP Cold-Hot Chiller Pro at $3,999.99 with a manufacturer-stated 36-107°F range.
How big is the Echelon soft tub?
Echelon states up to 200 liters, about 52 gallons, of immersion space, which is less than the 77-gallon Ice Barrel 300 and roughly half the 105-gallon Plunge. The product page publishes no dimensions or weight, so ask Echelon support for the tub's footprint in writing before committing a space to it.
Echelon soft tub vs Ice Barrel 300, which entry plunge wins?
Both are no-chiller entries. The Echelon soft tub costs $599.99 and packs away; the Ice Barrel 300 costs $1,149.99, stands rigid, and carries a limited lifetime warranty on its freeze-tolerant composite. Renters and habit-testers lean Echelon on price and portability; buyers who want a permanent outdoor fixture lean Ice Barrel.
What does a full chillered Echelon setup cost versus an all-in-one?
Tub plus the Advanced Cold Chiller totals $1,499.98, about half an Inergize Elite Tub at $2,990 and well under a base Plunge Original, which sold at $5,290 when we checked on August 16, 2026. The gap buys an integrated system engineered as one unit, a single point of support, and in Inergize's case heat to 104°F. If you plunge daily, the integrated route usually wins.
Is a $599.99 soft tub worth buying at all?
As a first test of the habit, yes. Echelon describes drop-stitched PVC with an anodized steel casing, built for indoor or outdoor use, and at $599.99 the downside of a wrong guess is small. It will not feel like a $5,000 tub, and serious daily plungers often graduate to a chillered system within a year or two.