Sun Home Cold Plunge Pro vs Plunge All-In: Cold Plunge Comparison (2026)

Short answer

The Sun Home Cold Plunge Pro is the more capable machine: rated to 28°F, a 316 stainless basin and 150 gallons, at $13,999 to $14,599. The Plunge All-In Gen 2 is the stronger value: 37°F, app-driven, optional 104°F heating, at $7,990. Weighted score: Pro 7.62, All-In 7.46.

• Best overall capability: Sun Home Cold Plunge Pro
• Best value: Plunge All-In Gen 2
• Best for maximum cold and ice: Sun Home Cold Plunge Pro
• Best for app features and optional heating: Plunge All-In Gen 2

Sun Home currently rates the Cold Plunge Pro to 28°F. Independent reviewers have verified operation at 32°F with visible ice formation.[1][6][7][8]

Who each one is for

Choose the Cold Plunge Pro if you want the coldest water available in a consumer tub (Sun Home rates it to 28°F, and independent testers running that setting reported ice forming with water holding around 32 to 33°F), a 316-grade stainless basin rated for indoor or outdoor use, the largest water volume in this matchup, three-stage ozone, UV and sediment sanitation, and the deepest independent test record, and you can absorb a price of $13,999 on sale or $14,599 at list.[1][6][7][10]

Choose the Plunge All-In Gen 2 if you want an integrated, quiet, app-controlled plunge with a well-built-out diagnostics and service ecosystem, free in-home delivery in Plunge's core zones, the option of a heater for hot-cold contrast, and room for users up to 6 ft 9 in, and you accept a 37°F floor, an acrylic and fiberglass shell, and a warranty that prohibits adding ice.[4][5][11] At $7,990 it costs about 55 to 57 percent of the Pro, a gap of roughly $6,000 to $6,600.

At a glance

Prices and manufacturer specifications were verified August 31, 2026. Promotions and product configurations may change. Independent testing dates are identified separately.

Edge reflects the documented strength on that dimension, not an overall verdict. Weighted scoring is in the scorecard.

Where the Sun Home Cold Plunge Pro leads

Coldest water, with ice, and more than one tester to prove it

Sun Home currently rates the Pro to 28°F.[1] The independent record supports the claim. GearJunkie's reviewer plunged daily for about four months, ran the tub at its 28°F setting and reported an inch or more of ice lining the basin during a Sacramento summer with outdoor temperatures above 100°F, calling the 1 HP chiller the most powerful the outlet had tested.[6] A six-week owner test set 28°F and held the water near 33°F with floating ice between freeze and thaw cycles, again in 100°F-plus heat.[10] Garage Gym Reviews' tester watched ice form at 33°F, and BarBend's tester described floating ice at 32°F.[7][8] The All-In bottoms out at 37°F by Plunge's specification.[4] That is far below the 59°F (15°C) threshold researchers use to define cold water,[13] so it is cold enough for cold-water therapy, but it will not make ice, and Plunge's warranty is void if you add any.[5] If the deepest possible cold is the goal, this is the Pro's clearest advantage.

Build, sanitation and capacity

The Pro's basin is 316-grade stainless steel inside an injected-insulation shell with a textured, UV- and weather-resistant exterior; the chiller, pump, sanitation and controls sit inside the chassis, so there is no external chiller box or hose run.[2][6] BarBend, Garage Gym Reviews and Fortune each scored its construction or durability 5 out of 5, and GearJunkie reported no mechanical issues across four months of daily use.[6][7][8][9] Sanitation runs in three stages, a 20-micron sediment filter, ozone injection and a UV chamber, one stage more than the All-In's ozone-and-filtration system.[2][8][4] Two documented limitations belong here: a long-term owner reported that on his 2024 unit the ozone and UV stages ran as a manually started 15-minute cycle, and that circulation pauses while the tub is making ice to protect the pump.[10] At 150 gallons the Pro also holds about 43 percent more water than the All-In's 105.[1][4] Reviewers describe the Pro's chiller and pump as nearly silent, so quiet operation is not something either tub gives up.[6][10]

Depth of independent testing

For a five-figure recovery product the Pro carries an unusually deep hands-on record: BarBend (4.2/5, updated June 2026), Garage Gym Reviews (4.2/5), GearJunkie (9.2/10 after four months of daily use), Fortune (4/5, May 2026) and a six-week owner review.[6][7][8][9][10] The All-In Gen 2 has one scored hands-on review so far, Garage Gym Reviews at 4.09/5 in February 2026, plus a Forbes Vetted award after a team member tried it at a gym.[11][12] That record will likely grow, but today the Pro's is broader. One correction to earlier versions of this article: Forbes Vetted's "Best Cold Plunge Tub Overall" award goes to the Sun Home Cold Plunge Tub, and the entry describes and links to Sun Home's portable Performance-series tub rather than the Pro, so we do not count it as a Pro test.[12]

Where the Plunge All-In leads

Price: about 55 to 57 percent of the Pro

At current promotional pricing, the Plunge All-In Gen 2 costs approximately $7,990, compared with $13,999 for the Cold Plunge Pro. The All-In remains the lower-cost choice, while the Pro commands an approximately $6,000 premium for colder operation, ice formation, stainless-steel construction, greater water capacity, and three-stage sanitation.[4][1]

This is the headline, and it is where the previous version of this article was most wrong. Plunge's own product page lists the All-In Gen 2 at $7,990, with a $2,000 Labor Day discount applied automatically at our check, against $13,999 on sale or $14,599 at regular price for the Pro.[4][1] That is 57 percent of the Pro's sale price and 55 percent of its regular price, a gap of $6,009 to $6,609. The earlier, much lower figure, taken from a Sun Home comparison page, does not match Plunge's current listing and has been removed. Plunge also displays a $9,990 "comparable value"; by Plunge's own definition that figure represents what other retailers charge for similar merchandise, not a Plunge list price, so we compare on the $7,990 selling price.[4] For that money the All-In delivers an integrated chiller, app control, ozone filtration with a published 15-minute full-volume cycle, an insulated cover, a starter maintenance kit and free in-home delivery in Plunge's core zones.[4]

Smart features and serviceability

Gen 2 adds an electronic expansion valve with 10 sensors monitoring temperature, pressure and flow, a higher-gain Wi-Fi antenna for over-the-air updates, remote diagnostics and a nationwide technician network, all managed from the Plunge app.[4] Garage Gym Reviews rated the All-In's technology and conveniences 5 out of 5 and called the chiller nearly silent; the tradeoff its tester noted is that reaching a set temperature can take about three hours.[11] The Pro's Wi-Fi app handled remote temperature changes in BarBend's 2026 test, but a 2024 owner unit shipped without Wi-Fi, an app or a scheduling function, so confirm app support on the current unit before buying on that basis.[8][10]

Contrast therapy and fit for taller users

The All-In can be configured with a heater that takes the water to 104°F at 4 to 5°F per hour, which the Pro cannot do at any price.[4][8] Plunge sells the heater as an option; Garage Gym Reviews listed it at $500 in February 2026, and the price was not shown on Plunge's product page at our check, so confirm it in Plunge's configurator.[11][4] Plunge also rates the tub for users up to 6 ft 9 in, and GGR's 6-ft-2 tester stretched out fully.[4][11] The Pro holds more water, but its interior runs about 47 inches long; a 6-ft owner submerged fully yet bent his knees to dunk his head, and Fortune's tester called the deep tub "a little claustrophobic."[7][10][9]

Delivery and warranty labor terms

Plunge includes premium in-home delivery to the first floor with packaging removal in most of its core zones; the Pro ships curbside, and reviewers recommend a dolly and a second person for its weight.[4][7][8] Plunge's written warranty covers parts and labor on covered repairs for the full year, with reasonable technician mileage chargeable, where Sun Home's general terms include labor and shipping only for the first 90 days after delivery.[5][3] Both warranties run one year.

Warranty and service, read closely

Both units carry a one-year residential limited warranty, short for a five-figure appliance, and the written terms differ in ways that matter.[3][5]

• Sun Home: one year against manufacturing defects on the Cold Plunge Pro; labor and shipping included for the first 90 days after delivery, after which the customer pays shipping and labor; extended warranties available for purchase (Garage Gym Reviews and BarBend reported three- and five-year options at extra cost).[3][7][8]
• Plunge: one year on the shell, equipment and controls, plumbing and the purification system; no charge for parts or labor on covered repairs, though reasonable technician travel mileage may be charged; remote diagnostics and a nationwide technician network. The warranty is void if the unit is not connected to the Plunge app with current firmware, if filters are not changed at least every 30 days, if ice is added, or if water is left in the tub when ambient temperatures reach 32°F without winterizing.[5][4]

Confirm the current written terms with each brand before buying; both warranty pages are linked in the sources.

Price and value

Both makers advertise HSA/FSA eligibility and offer financing.[1][4] Sun Home estimates the Pro's energy use at about 1 kWh per day; treat that as a manufacturer estimate that varies with ambient temperature and setpoint.[2] Plunge publishes only relative efficiency for Gen 2 (50 percent less energy than the previous generation), so running costs are not compared here.[4] Both prices above were captured during holiday promotions: the Pro's sale banner said it ended August 31, and Plunge's Labor Day pricing carried no published end date at our check.

Weighted scorecard

Each dimension is scored 0 to 10 against the anchors below, then weighted for a cold-plunge purchase in which cooling power, sanitation, build and price matter most. Heating is weighted lightly because most cold-plunge buyers are shopping for cold; re-weight it if contrast therapy is your goal. Weights and anchors are applied identically to both units, and scores reflect the documented record, not our own testing.

0 to 10 anchors

Scores

The arithmetic

Weights total exactly 100 percent: 18 + 14 + 14 + 10 + 9 + 9 + 13 + 8 + 5 = 100. Each contribution below is the score multiplied by the weight.

The margin is narrow by design: it reflects two well-made tubs with different priorities. Re-weight to yours and the gap moves. Lead with price, smart features and heating and the All-In pulls ahead; lead with cooling power, build, sanitation and capacity and the Pro's margin widens. The earlier version of this article scored the Pro 8.31 and the All-In 7.46 using an outdated, much lower All-In price and the earlier 32°F Pro rating; both inputs have been corrected.

Bottom line

Buy the Sun Home Cold Plunge Pro if you want the most capable machine in this matchup: rated to 28°F with independently reported ice, a stainless build rated for outdoors, 150 gallons, three-stage sanitation and the broadest hands-on test record, and the premium price is acceptable.[1][6] Buy the Plunge All-In Gen 2 if you want a well-supported, app-driven plunge with the better diagnostics ecosystem, in-home delivery, full-year labor coverage and the option of 104°F contrast heating, and you are comfortable with a 37°F floor and an acrylic and fiberglass shell.[4][5] The Pro is the better cold plunge; the All-In is the better value at 55 to 57 percent of the price, and for many buyers that gap decides it.

A note on safety

Cardiovascular risk and cold shock. Entering cold water triggers what the American Heart Association describes as the cold shock response: a sudden, rapid increase in breathing, heart rate and blood pressure that places stress on the heart and makes it work harder, and that can cause drowning within seconds if the involuntary gasp happens with the head submerged.[14] The peer-reviewed literature identifies the same response, together with the cardiac arrhythmias that can follow when breath-holding and cold exposure coincide, as the main acute hazards of immersion in water below about 59°F (15°C).[13] Both tubs in this comparison run far colder than that threshold. The AHA also reports the National Center for Cold Water Safety's warning that sudden immersion in water under 60°F can kill a person in less than a minute.[14]

Contraindications. A preventive cardiologist quoted by the American Heart Association cautions against cold-water immersion for anyone with a cardiac history, and notes that heart medications such as beta blockers, which lower blood pressure and heart rate, can make it harder for the body to adapt to a sudden temperature drop.[14] Do not plunge without medical guidance if you have cardiovascular disease, an arrhythmia or uncontrolled high blood pressure. The sports-medicine physician consulted for Fortune's review of the Pro additionally recommends medical clearance and 30-to-60-second first exposures for adults 50 and older;[9] we present that as one clinician's recommendation rather than an established rule, because neither the AHA article nor the peer-reviewed review states an age threshold. Decide it with your own physician.

Acclimation and supervision. The exercise scientist interviewed by the AHA advises building tolerance gradually with progressively cooler showers, baths or outdoor water rather than starting cold, and describes the first 10 seconds to a minute as the most dangerous window, while the body fights to control its breathing.[14] He is unambiguous about supervision: never do a cold-water swim alone. Hypothermia risk continues after you get out, so rewarm promptly in dry clothes.[14] Get out immediately if you feel chest pain, confusion, or shivering you cannot control. This article is product information, not medical advice; consult a healthcare provider before starting cold-water therapy.

What changed in this update

Corrections made on August 31, 2026 against the live manufacturer pages and the reviews cited below:

• All-In price: the earlier, much lower figure, sourced from a Sun Home comparison page, was replaced with $7,990 from Plunge's product page, and the value math and scorecard were recomputed.[4]
• Pro minimum temperature: 32°F became the current 28°F manufacturer rating, with the independent record described as tested rather than folded into the spec.[1][6]
• Pro weight: 345 lb became 400 lb per Sun Home's current product page; the 345-lb figure from every hands-on review is noted alongside it.[1]
• All-In heating, dimensions and capacity: the previous "confirm heating" caveat and "interior dimensions unknown" note were replaced with Plunge's published heater option, dimensions, 105-gallon capacity and 6-ft-9-in fit rating.[4]
• Forbes award: the earlier statement that Forbes named the Pro Best Cold Plunge was removed; the live Forbes entry describes Sun Home's portable tub, and Forbes separately names the All-In its Best Premium Cold Plunge Tub.[12]
• Sanitation cadence and app support on the Pro: caveats added from a long-term owner review.[10]
• Warranty labor terms: added from both makers' written terms; the earlier "in-home technician dispatch" claim for Sun Home was removed because its written terms do not state it.[3][5]
• Safety section: re-sourced to peer-reviewed literature, with the over-50 clearance recommendation attributed to the clinician who made it.[13][9]
• Sources: Plunge pricing now cites Plunge; the Fortune and Forbes references are separate entries; every numbered source title is a direct hyperlink, and each independent review is used only for what its own testers verified.
• Scorecard arithmetic: published in full, with weights confirmed to total exactly 100 percent.
• Structured data: rebuilt as a linked graph covering BlogPosting, WebPage, FAQPage, BreadcrumbList, Organization with publisher logo, Person entities with credentials for the author, editor and contributors, and a Product entity for each tub with dimensions, weights, capacities, temperature properties and an Offer carrying the verified price.

What we still don't know

• No first-hand testing by us. Cooling, sanitation and fit findings come from independent reviewers and manufacturer specifications; we synthesized rather than re-tested.
• Pro weight and minimum temperature. Sun Home's product page lists 400 lb and 28°F, while its Pro Series overview page still lists a 345-lb system and a 32°F to 70°F range, and every hands-on review weighed a 345-lb unit.[1][2] We do not know whether the weight difference reflects a product revision or a spec-sheet correction; the 28°F setting has been run by two independent testers.
• Pro sanitation cycling and app support. Whether current firmware automates the ozone and UV cycle, and whether every current unit ships with the Wi-Fi app BarBend used, are not stated on Sun Home's product page.[8][10]
• All-In shell material and interior dimensions. Plunge's page does not name the material or publish interior measurements; Forbes lists acrylic and fiberglass, Fortune lists acrylic, and fit rests on Plunge's 6-ft-9-in rating and one 6-ft-2 tester.[4][12][9][11]
• Heater price. Not shown on Plunge's product page at our check; GGR's February 2026 figure was $500.[11]
• Promotional pricing. Both prices were captured during holiday sales; confirm current pricing before purchase.

Sources

Evidence hierarchy: independent hands-on tests and owner reports are weighted above manufacturer pages; manufacturer pages are used for current prices, ratings and written terms. All 14 sources were fetched and verified live on August 31, 2026, and each is used only for the claims its own authors or testers made.

1. Sun Home Saunas, Cold Plunge Pro product page: $13,999 sale and $14,599 regular price; 28°F minimum; 150 gal; ozone and UV sanitation; "Dedicated 15 Amp GFCI Circuit" and NEMA 5-15 plug; indoor and outdoor; 78 in × 34 in × 33 in; 400 lb; 1+ year warranty; free shipping. Manufacturer source; verified August 31, 2026.
2. Sun Home Saunas, Cold Plunge Pro Series overview: 316-grade stainless basin, injected insulation, fully integrated chassis, WhisperChill and industrial casters with a 3,000-lb wheel rating, Polar Jet Mode, three-stage sanitation, roughly 1 kWh per day energy estimate. Note that this page still lists a 345-lb system and a 32°F to 70°F range. Manufacturer source; verified August 31, 2026.
3. Sun Home Saunas, Warranty Information: 1-year residential limited warranty on the Cold Plunge Pro against manufacturing defects; general terms include labor and shipping for the first 90 days after delivery; extended warranties available for purchase. Manufacturer source; verified August 31, 2026.
4. Plunge, Plunge All-In (Gen 2) product page: $7,990 with $2,000 off and a $9,990 "comparable value" as defined on the page; 37°F cooling; 0.75 HP chiller; 10 to 12°F per hour cooling and 4 to 5°F per hour heating with the optional heater to 104°F; 105 gal; 238 lb dry and 1,150 lb filled; 76-3/4 in × 31-1/2 in × 28-3/4 in; fits users to 6 ft 9 in; indoor or outdoor; dedicated 120 V 15 A circuit with a 7-ft GFCI cord; ozone sanitation with full-volume filtration every 15 minutes; 10-sensor expansion valve; over-the-air updates; free in-home delivery in core zones; 1-year warranty; residential use only. Manufacturer source; verified August 31, 2026.
5. Plunge, Plunge All-In Residential 1-Year Limited Warranty (linked from plunge.com/pages/warranty): one-year coverage of shell, equipment, plumbing and purification system; no charge for parts or labor on covered repairs with technician mileage chargeable; warranty void for added ice, failure to connect to the Plunge app and update firmware, filters not changed every 30 days, and water left in the tub at or below 32°F ambient without winterizing. Manufacturer source; verified August 31, 2026.
6. GearJunkie, Billy Brown, Ice, Ice, Baby: The Sun Home Cold Plunge Pro Ice Bath Creates Its Own Ice, September 16, 2025: 9.2/10; about four months of daily plunging; ran the 28°F setting and reported ice forming in 100°F-plus Sacramento heat; 1 HP chiller "the most powerful that we've tested"; 345-lb dry weight; 47-in interior length; 20-micron filter plus UV and ozone; six caster wheels; textured weather- and UV-resistant exterior; no breakdowns; 1-year warranty; $13,800 at the time. Independent hands-on test; verified August 31, 2026.
7. Garage Gym Reviews, Lindsay Scheele (ISSA-CPT), Sun Home Cold Plunge Pro Review: 4.2/5; sessions at 46°F and 33°F with ice forming; 1 HP "most powerful chiller we've tested"; 345 lb; 78 in × 34 in × 33 in; 47-in interior; 20-micron filter, UV and ozone; two vents need clearance; curbside delivery; 1-year limited warranty with 3- or 5-year paid extensions; $9,050 at the time. Independent hands-on test; verified August 31, 2026.
8. BarBend, Ben Emminger (NASM-CNC, NASM-CSNC), Sun Home Cold Plunge Pro Review (2026), updated June 2, 2026: 4.2/5; 316-grade stainless tub; floating ice at 32°F; 1 HP motor; 3-step ozone, UV and sediment sanitation; Wi-Fi app control; indoor and outdoor rating; 345 lb; no heating; construction 5/5; $14,499 at the time; 1-year residential warranty with extended coverage to 5 years purchasable. Independent hands-on test; verified August 31, 2026.
9. Fortune, Emily Phares, Sun Home Cold Plunge Pro Review (2026), May 20, 2026: 4/5 overall; durability 5/5; deep tub with ice present; tester found it "a little claustrophobic"; comparison table listing the Plunge All-In as acrylic, 105 gal, 37°F to 104°F, 1 year; cold-water safety guidance from Raj Desai, MD, including medical clearance for adults 50 and older. Independent hands-on test; verified August 31, 2026.
10. Michael Kummer, Is the Sun Home Saunas Cold Plunge Pro Worth the Price? My Hands-on Review, updated March 10, 2025: six-week owner test; 28°F setpoint holding about 33°F with ice in 100°F-plus ambient heat; 150-gal tub fits a 6-ft, broad-shouldered user, knees bent to submerge the head; copper cooling coils; sediment filter, ozone and UV; sanitation ran as a manually started 15-minute cycle and circulation paused during ice-making; no Wi-Fi, app or scheduling on his 2024 unit. Independent owner review, affiliate links disclosed by the author; verified August 31, 2026.
11. Garage Gym Reviews, Lindsay Scheele, Plunge All-In Review (2026), February 2026: 4.09/5; durability, ergonomics and technology 5/5; footprint 3/5; customer experience 3/5; 6-ft-2 tester stretched out fully; nearly silent chiller; about three hours to reach temperature; heater add-on $500; $8,990 cold-only at the time; slick shell with no handles; 37°F lowest temperature; 1-year warranty. Independent hands-on test; verified August 31, 2026.
12. Forbes Vetted, Cam Vigliotta, Best Cold Plunge Tubs 2026, updated July 19, 2026: Plunge All-In named Best Premium Cold Plunge Tub, listed as acrylic and fiberglass, 76.75 in × 31.5 in × 28.75 in, 238 lb, 105 gal, after a team member tried it at a gym; Best Cold Plunge Tub Overall named the Sun Home Cold Plunge Tub, an entry that describes and links to Sun Home's portable Performance-series tub, not the Pro. Independent editorial guide; verified August 31, 2026.
13. Tipton MJ, Collier N, Massey H, Corbett J, Harper M. Cold water immersion: kill or cure? Experimental Physiology 2017;102(11):1335-1355. doi:10.1113/EP086283. Peer-reviewed review of the cold shock response, cardiac risks and hypothermia; defines cold water as below 15°C (59°F). Primary clinical literature; verified August 31, 2026.
14. American Heart Association News, Laura Williamson, You're not a polar bear: The plunge into cold water comes with risks, December 9, 2022: cold shock response defined as a sudden rapid increase in breathing, heart rate and blood pressure that stresses the heart and can cause drowning within seconds; National Center for Cold Water Safety warning that sudden immersion under 60°F can kill in less than a minute; Dr. Jorge Plutzky, director of preventive cardiology at Brigham and Women's Hospital, cautioning against immersion for anyone with a cardiac history and noting the effect of beta blockers; exercise scientist Lee Hill on gradual acclimation, the first 10 seconds to a minute as the most dangerous window, prompt rewarming, and never swimming in cold water alone. Authoritative health-organization source; verified August 31, 2026.

Specifications, warranty terms and prices change and vary by configuration and promotion. Confirm current details with each manufacturer before purchasing. Nothing here is medical advice; cold-water immersion carries health risks for some individuals, so consult a healthcare provider before starting.