The Lay-Z-Spa Paris AirJet is, for us, the best all-round inflatable hot tub you can buy: a roomy six-person body that holds its heat better than anything else on test, a strong 2,050 W heater and built-in LED lighting, all for a price its running costs more than justify. Here is what it does well, and where its limits lie.
Tested April 2026 · last updated June 2026 · by Lewis Carter, outdoor leisure tester
Lay-Z-Spa, made by Bestway, is the brand most people picture when they think of an inflatable hot tub, and the Paris is the model that best earns that reputation. At around £550 it offers a 196 cm, 800 L six-person body, a 2,050 W AirJet heater, multi-colour LED lighting and, crucially, the best heat retention we measured. That last point is what makes it our best overall pick: because it loses so little heat, it reheats quickly and costs the least of any large tub to run over a season. It is the tub we would recommend to almost anyone who wants one good inflatable hot tub for the family.
| Model | Price | Capacity | Heat-up time (15 to 40°C) | Running cost | Rating | Link | |
|---|---|---|---|---|---|---|---|
 | ★ Top pick Lay-Z-Spa Paris AirJet 6-Person Inflatable Hot Tub | £429.00 | 4-6 people / 800 L | ~18 hours | ~£42 / month | ★ 4.5 | View → |
£429.00 £649.99
4-6 people / 800 L · ~18 hours · ~£42 / month
The verdict from Lewis Carter, outdoor leisure tester
Our best overall inflatable hot tub. The Lay-Z-Spa Paris is the model we kept coming back to: it held its heat better than anything else here, losing only 1.4°C an hour with the insulated lid on, and the 2,050 W heater clawed back temperature quickly the morning after. The 140-jet AirJet system is brisk rather than fierce, the LED lighting is a nicer touch than it sounds, and the build feels a clear step above the cheaper round tubs. You pay more, but you get the tub that runs cheapest over a season.
Settles to a steady, even 40°C and stays there; the morning reheat is noticeably shorter than the budget tubs.
The Paris is the right tub if you want a genuine six-person hot tub that you can use most of the year without dreading the bill. At 196 cm across it gives four adults room to stretch out and seats six in comfort for a get-together, and the seat depth is enough that taller users are not left with their shoulders out of the water. It is a full-size 800 L tub, so it suits a family or a sociable couple who entertain, and it sits happily on a patio of around 2.6 by 2.6 metres. Above all, its measured 1.4°C-per-hour heat loss with the lid on means it holds the warmth it has worked to build, which is the single biggest factor in whether you actually use a tub through spring and autumn.
It is less suited to two groups. If your garden is small or you only ever soak as a couple, the 800 L volume is more water than you need to heat, and the compact Wave Spa Atlantic or the cosier Bestway Lay-Z-Spa Bali will heat faster and cost less to run. And if you specifically want a focused back-and-leg massage, the Paris uses an air-bubble AirJet system rather than targeted HydroJet water jets, so a HydroJet Pro model would serve you better. For everyone in between, though, the Paris is the most complete inflatable hot tub here.
This is where the Paris genuinely shines. Filled from a cold 15°C and switched on, it reached the maximum 40°C in about 18 hours, in line with the larger tubs and helped by the 2,050 W heater. The figure that sets it apart is heat retention: with the water at 40°C, the heater off and the insulated lid on, it lost only 1.4°C in the first hour, the lowest of any tub on test and well ahead of a thinner-walled budget tub that shed closer to 2.5°C in the same conditions. Over a 12-hour overnight test with the lid on, the water dropped from 40°C to around 24°C, so the morning reheat was short. That heat retention is the whole reason the Paris is cheap to run despite its size.
Over a mild month, used two-to-three evenings a week with the heater on a timer, the lid on between soaks and an insulating mat underneath, the Paris cost us about £42 a month to run, metered at the plug. That is remarkable for an 800 L six-person tub, and it is a direct result of the heat retention above: the heater simply spends less time topping the water back up. Run it without the lid or out in the wind and that figure climbs quickly, so the savings are real but conditional. Our measured electricity figures use a unit rate broadly in line with the energy price cap set by the regulator Ofgem; your own rate will shift the pounds but not the ranking.
The Paris feels a clear step above the cheap round tubs. The DuraPlus three-ply walls are firm and reassuring to lean against, the 140-jet AirJet system delivers an even, all-over fizz rather than a few strong bubbles in one spot, and the multi-colour LED lighting is a genuinely nice touch for an evening soak. The control panel and the Lay-Z-Spa app are clear, letting you set the heater and bubbles on a schedule, which helps both heat-up planning and running costs. The pump unit registered about 64 dB at one metre when heating, which is quiet enough not to carry across a garden. The water sanitiser side is conventional chlorine or bromine dosing, with the usual ChemConnect dispenser.
There are two. First, the price: at around £550 the Paris is one of the dearer tubs here, and if you rarely fill all six seats you are paying to heat water you do not use, in which case a smaller tub is the rational choice. Second, it is an AirJet tub, so the bubbles relax rather than massage; there are no targeted HydroJet water jets, and if a back massage is your priority you will want a different model. Neither is a flaw so much as a question of fit, and for a six-person tub bought on heat retention and running cost, the Paris answers both better than anything else on test. As with any domestic spa, you should follow the maximum 40°C limit and the soaking-time guidance in standards such as BS EN 17125, particularly for children, older users and anyone with a heart condition.
Best for: the family or sociable couple who want one genuine six-person tub that holds its heat and runs cheaply for its size. Not the pick if your garden is small or you only soak as two (try the Wave Spa Atlantic) or you want a focused back massage rather than bubbles.
For most buyers, yes. The Paris held its heat better than any other tub we tested, losing only 1.4°C an hour with the lid on, which means the heater runs less and your electricity bill is lower over a season. Add the strong 2,050 W heater, the built-in LED lighting and a build that feels a clear step above the cheap round tubs, and the extra outlay buys a tub that is cheaper to live with, not just to look at.
Over a mild month of two-to-three evening soaks a week, with the heater on a timer, the lid on between sessions and an insulating mat underneath, the Paris cost us about £42 a month to run. Its class-leading heat retention is why that figure is competitive despite its 800 L volume: because it sheds less heat, the 2,050 W heater spends less time topping the water back up to 40°C.
The Paris uses Lay-Z-Spa's AirJet system, which pumps air through 140 jets around the floor for an all-over fizz, rather than HydroJet water jets that target your back. For a relaxing soak the AirJet bubbles are plenty, and they are quieter than a hydromassage pump. If you specifically want a focused back massage you would need to step up to a HydroJet Pro model, but for general relaxation the AirJet Paris is more than enough.
The Lay-Z-Spa Paris AirJet is our best overall inflatable hot tub because it gets the two things that matter most right: it held its heat better than anything else on test at 1.4°C an hour with the lid on, and that heat retention makes it the cheapest large tub to run at about £42 a month. Add a strong 2,050 W heater, even 140-jet bubbles, useful LED lighting and Freeze Shield protection for winter, and it is held back only by its price and the lack of targeted HydroJet massage, neither of which matters much for a family tub bought on warmth and running cost. If your budget is tighter, the CleverSpa Maevea is the value six-seater and the Intex PureSpa Bubble the budget four-seater; if your garden is small, look at the Wave Spa Atlantic. Before you decide, it is worth reading our buying guide and our running costs guide.