An inflatable spa is a self-supporting portable hot tub with air-beam walls, an integrated heater and a pump that circulates and filters the water, set up on any flat surface without plumbing or a slab. The best inflatable spa options in Australia heat to 40 degrees, seat between two and six people, drive 80 to 140 jets, and use a multi-layer wall material rather than single-skin PVC.
Two massage systems appear across the category and they are not the same thing. AirJet systems blow bubbles through outlets in the floor, covering a wide area with a light effervescent feel. HydroJet systems pump water through directed nozzles at pressure, which is what actually works on a tight back or shoulder. A few spas combine both; most run air only.
Capacity is the figure that drives everything else. A two-person oval holds a few hundred litres and reaches temperature in a few hours, while a six-person round takes over 1,000 litres and most of a day, and heating that water is the real cost of ownership rather than the purchase. Insulation quality matters for the same reason, which is why multi-layer wall construction and a properly fastened cover are worth paying for.
This guide compares eight inflatable spas on seating capacity, jet type and count, wall construction, insulation and control features.
Best Inflatable Spa Models in Australia Compared
| Product | Link | Type | Best For | Key Spec |
|---|---|---|---|---|
| Bestway Lay-Z-Spa Cabo HydroJet | Check price | Hydrojet and air | Groups of six | 180x180cm, 4 HydroJets, 140 AirJets |
| Bestway Lay-Z-Spa Havana | Check price | Air jet | Couples and small families | 669L, 81 AirJets, 4 people |
| Intex Greywood Deluxe PureSpa | Check price | Air jet | Remote management | 216cm round, WiFi, hard water system |
| Intex Sahara Tan PureSpa | Check price | Air jet | Straightforward six-seaters | 216cm round, 6 people |
| Round Portable Massage Spa for Five | Check price | Air jet | Bubble intensity | 170x65cm, 125 bubble jets, 5 people |
| Portable Square Inflatable Hot Tub | Check price | Air jet | Corners and courtyards | 110 air jets, 2-4 people, square |
| Outdoor Square Spa with Cover | Check price | Air jet | Two to four bathers | 110 air jets, 2-4 people, square |
| Oval Inflatable Hot Tub for Two | Check price | Air jet | Couples | Oval, 100 air jets, 2 people |
1. Bestway Lay-Z-Spa Cabo HydroJet – Best for Six People
One hundred and eighty centimetres square gives six adults room to sit without touching knees, and this is the only spa here that combines two massage systems: four directed HydroJet water nozzles alongside 140 AirJet bubble outlets.
Water jets and air jets do different things. Air bubbles cover a broad area and feel effervescent; directed water jets put pressure on one spot, which is what actually releases a tight shoulder or lower back. Having both means the spa works for a social soak and for genuine muscle recovery. A flip-up control panel and app control handle heating remotely, so it reaches 40 degrees before you get home.
Three-layer TriTech material with EnergySense insulation is quoted at 40 percent more efficient, which matters because running cost is the real expense of an inflatable spa rather than the purchase. It is the largest and most capable unit in this guide, and priced accordingly.
Pros
- Four HydroJet water nozzles plus 140 AirJets
- Seats six at 180 x 180 x 71cm
- App control for remote heating
- EnergySense insulation, quoted 40 percent more efficient
- Frost guard protects the pump in winter
Cons
- Largest footprint here, needs a dedicated space
- Highest running and purchase cost in this guide
Key specs: 180 x 180 x 71cm, 6 people, 4 HydroJet nozzles, 140 AirJet nozzles, 3-layer TriTech, EnergySense insulation, app control, heats to 40C
CHECK ON AMAZON2. Bestway Lay-Z-Spa Havana – Best Four Person Spa
Four people fit in 669 litres of water here, stirred by 81 AirJet outlets, and the whole thing self-inflates rather than needing a separate pump.
Four is the size most households actually use. Six-person spas cost more to fill, more to heat and take a larger flat area than many courtyards have, while a four-seater still fits two couples. An energy-saving timer switches the heater on and off automatically, which is the single most effective way to control running cost on a spa that sits idle midweek.
Tritech three-layer material with a polyester mesh core gives it the wall rigidity to lean back against. It has no directed water jets, so the massage is bubbles only, and anyone wanting targeted pressure should look at the Cabo above.
Pros
- Self-inflating, no separate pump needed
- 81 AirJet outlets
- Energy saving timer for auto on and off
- 669 litre capacity seats four
- Reinforced cover with fastening clips
Cons
- Bubble massage only, no directed water jets
- Smaller than the six-person models here
Key specs: 4 people, 669 litre capacity, 81 AirJet outlets, Tritech 3-layer material, energy saving timer, heats to 40C, integrated filtration
CHECK ON AMAZON3. Intex Greywood Deluxe PureSpa – Best for App Control
Intex builds this one around control rather than raw jet count. WiFi connectivity runs every spa function from a phone or tablet, and a removable wireless control panel with integrated charging sits on the rim.
Scheduling is what makes a spa get used. Heating 800-odd litres takes hours, so a spa without remote control either runs constantly at cost or sits cold when you want it. Programming it from the office means arriving to a spa at temperature without heating it for three days. The removable panel also means adjusting jets without leaning out of the water.
Fiber-Tech beam construction gives the wall its rigidity, and a built-in hard water treatment system reduces mineral scale, which matters in much of Australia where bore and hard mains water shortens the life of pumps and heaters. Its user rating is the lowest in this guide, so read recent reviews before committing.
Pros
- WiFi control of all spa functions from a phone
- Removable wireless control panel with charging
- Hard water treatment reduces scale build-up
- Fiber-Tech beam construction for wall rigidity
- Seats six at 216cm diameter
Cons
- Lowest user rating of the spas here
- Round shape uses more floor area than a square for the same seating
Key specs: 216cm x 71cm round, 6 people, WiFi app control, removable wireless control panel, Fiber-Tech beam construction, hard water treatment system, 220-240V
CHECK ON AMAZON4. Intex Sahara Tan PureSpa – Best Large Round Spa
Same 216cm round footprint and six-person capacity as the Greywood above, in a sand-toned finish and without the wireless control panel and app connectivity.
Dropping the smart features takes cost out of a spa that is otherwise the same size and shape. For a household that will walk outside and press a button anyway, remote scheduling is a feature paid for and never used. The bubble spa set includes the pump, heater and filtration as one integrated unit, so setup is the same pour-and-plug process.
You lose the hard water treatment and the app, which are the two things that most affect long-term running and maintenance in hard water areas. Where the water is soft and the spa lives close to the back door, the saving is real.
Pros
- Seats six at 216cm diameter
- Simpler and less expensive than the Greywood
- Integrated pump, heater and filtration
- Sand-toned finish suits paved courtyards
Cons
- No app or wireless control panel
- No hard water treatment system
Key specs: 216cm x 71cm round, 6 people, bubble spa set with integrated pump and heater, 220-240V
CHECK ON AMAZON5. Round Portable Massage Spa for Five – Best for Bubble Jets
Bubble count is the headline here: 125 outlets, the most in this guide, packed into a 170 by 65 centimetre round tub rated for five people.
Jet count changes the character of the water. A hundred-plus outlets produce a dense, uniform effervescence across the whole floor rather than bubbles rising from a few points, which is what people expect from a commercial spa and rarely get from a budget inflatable. DWF material gives the walls more rigidity than single-layer PVC, so the rim holds shape when leant on.
A hard water treatment system is built in, which is unusual at this price and reduces the mineral deposits that kill heaters early. Five people at 170cm is optimistic; four is realistic if anyone wants to stretch out.
Pros
- 125 bubble jets, the most here
- Built-in hard water treatment system
- DWF material for wall rigidity
- Integrated filtration
- Compact 170cm footprint
Cons
- Five-person rating is optimistic at 170cm
- Bubble massage only, no directed jets
Key specs: 170 x 65cm round, rated 5 people, 125 bubble jets, DWF material, hard water treatment, integrated filtration and heating
CHECK ON AMAZON6. Portable Square Inflatable Hot Tub – Best Square Design
A square tub rather than a round one, with 110 air jets and space for two to four people. It ships with a cover and a built-in heating and filtration unit.
Square changes where a spa fits. A round tub wastes the corner of a courtyard or a deck, while a square one sits flush against two walls and uses space most backyards already have spare. Seating also works differently: corners give four people a back and two armrests each, where a round wall leaves everyone in the same posture.
Two to four people is the honest range, and four is tight. Stock on this listing has been running very low, so it is worth checking availability before settling on it.
Pros
- Square shape fits courtyard corners
- 110 air jets
- Corner seating gives better back support
- Cover and built-in heater included
- Compact enough for a small deck
Cons
- Four people is a squeeze
- Stock levels on this listing run low
Key specs: Square inflatable hot tub, 2-4 people, 110 air jets, integrated heater and filtration, cover included
CHECK ON AMAZON7. Outdoor Square Spa with Cover – Best for Small Groups
Another square 110-jet design for two to four people, supplied with a cover and a built-in heating unit. It carries a user rating where several others in this guide have none.
Having any rating history at all is worth something in a category full of unbranded listings that appear and vanish. A cover is the other detail that matters more than it sounds, because an uncovered spa loses heat overnight and costs far more to bring back to temperature than one that held 30 degrees while nobody was in it.
This sits very close to the square tub above on specification, so treat them as alternatives rather than a step up. Whichever has stock and the better price at the time is the one to take.
Pros
- Square design with cover included
- 110 air jets
- Has user rating history, unlike some listings here
- Built-in heating and filtration
Cons
- Nearly identical in specification to the square tub above
- Limited stock on this listing
Key specs: Square inflatable hot tub, 2-4 people, 110 air jets, integrated heater and filtration, cover included
CHECK ON AMAZON8. Oval Inflatable Hot Tub for Two – Best for Two People
An oval shape and a two-person rating make this the smallest spa in this guide, running 100 air jets from a built-in heater.
Two-person spas are a different purchase from six-seaters. Less water means it reaches temperature in a fraction of the time and costs correspondingly less to run, which turns a spa from a weekend event into something usable on a weeknight. The oval footprint also fits a narrow balcony or side courtyard where nothing round or square would go.
The accessory kit is more complete than most, including a cover, two filter cartridges with covers, a repair kit, an inflation hose and a storage bag. It will not host a group, and that is the entire point.
Pros
- Smallest and quickest to heat here
- Oval shape suits narrow balconies
- 100 air jets
- Complete accessory kit including repair kit and storage bag
- Lowest running cost of these spas
Cons
- Two people only
- Not suitable for entertaining a group
Key specs: Oval inflatable hot tub, 2 people, 100 air jets, built-in heater, cover, 2 filter cartridges, repair kit, inflation hose, storage bag
CHECK ON AMAZONHow to Choose an Inflatable Spa
Size it on who actually uses it, not who might. A six-person spa holds over 1,000 litres, which takes most of a day to heat from cold and costs accordingly every time. Two adults using a four-seater weekly will get far more out of it than the same two rattling around a six-seater they fire up twice a summer.
Understand the difference between air jets and water jets. AirJets blow bubbles and feel pleasant across the whole body. HydroJets push water through directed nozzles under pressure and are the only kind that will work on a specific knot. Jet count sells spas, but 140 air outlets do not substitute for four properly aimed water jets if muscle relief is the goal.
Running cost is decided by insulation and the cover. The purchase is the small number; heating is the ongoing one. Multi-layer wall material, an insulated base and a cover that actually clips down keep overnight heat loss low enough that the heater only tops up rather than reheating from cold. A spa left uncovered can cost several times as much to run.
Check the surface before you buy anything. A filled six-person spa weighs well over a tonne, which rules out most timber decks and balconies without checking the load rating. It needs a flat, level surface with no sharp stones, and a ground cloth underneath. Levelness matters as much as strength, since an unlevel spa puts uneven pressure on one wall.
Factor in hard water if you are outside a capital city. Bore water and hard mains water leave mineral scale that shortens the life of heaters and pumps quickly. Some spas here include a hard water treatment system, and where the supply is hard that feature saves more than it costs. Otherwise budget for scale treatment chemicals.
Be realistic about what a spa does for recovery. Warm water helps circulation and general muscle relaxation, and there is decent evidence for that. It is not a substitute for targeted treatment, and anyone chasing muscle relief specifically may get more from one of the neck and shoulder massagers in our guide, or from a massage chair if the budget stretches that far.
Frequently Asked Questions
How much does it cost to run an inflatable spa in Australia?
Heating is the main cost and it depends on capacity, insulation and how often you use it. A well-insulated four-person spa kept covered and held at temperature costs far less than a larger one reheated from cold each time. Using the timer to heat only before use, and always clipping the cover down, makes the biggest difference.
Can you put an inflatable spa on a deck or balcony?
Only after checking the load rating. A filled six-person spa weighs over a tonne once occupants are added, which exceeds what many timber decks and most balconies are built for. Ground level on a flat, level surface with a ground cloth is the safe default, and levelness matters as much as strength.
How long does an inflatable spa take to heat up?
Typically several hours, and a large six-person model can take most of a day from cold. Heaters on these spas raise water temperature slowly by design. This is why timer and app scheduling are genuinely useful features rather than gimmicks, and why keeping the cover on between uses saves so much time.
What is the difference between AirJet and HydroJet?
AirJets blow air bubbles through outlets in the floor, producing a light effervescent sensation across a wide area. HydroJets pump water through directed nozzles at pressure, giving targeted massage on a specific spot. Air systems are far more common; only a few spas offer directed water jets as well.
Can you use an inflatable spa in winter in Australia?
Yes in most of the country, though heating costs rise and the heater works harder. Look for frost protection, which runs the pump to stop water freezing in the plumbing, and note that in genuinely cold areas some models are not rated for use below certain temperatures. Insulation and a fastened cover matter far more in winter.
How often do you change the water in an inflatable spa?
Every one to three months with normal use, depending on how many people use it and how well the chemistry is maintained. Filter cartridges need rinsing weekly and replacing every few weeks. Neglecting either shortens pump life and is the most common reason an inflatable spa stops being pleasant to use.
Verdict
The Bestway Cabo HydroJet is the one worth stretching for, because directed water jets alongside the bubbles are the difference between a warm bath and something that actually loosens a back. For most households a four-seater is the smarter size, and the Havana holds temperature on a timer without the water volume of a six-person tub. Where the spa is for two people on a balcony or a narrow courtyard, the oval two-seater heats in a fraction of the time and costs the least to run of anything here.
