The Bestway Lay-Z-Spa Bali is our best inflatable hot tub for a couple: it takes the strong 2,050 W AirJet heater from the bigger Lay-Z-Spas and wraps it in a cosier four-seat body with colour-changing LED lighting. For two people it is close to ideal. Here is what it does well, and where it falls between sizes.
Tested April 2026 · last updated June 2026 · by Lewis Carter, outdoor leisure tester
The Bali sits in the Lay-Z-Spa range as the compact, light-up couple's tub, and it borrows the best bits of its larger siblings. At around £470 it pairs the same fast 2,050 W AirJet heater as the six-person Paris with a snug 180 cm, 669 L four-seat body and a colour-changing LED ring. It is roomier than a pure two-person tub and cheaper to run than a six-seater, hitting a sweet spot for couples, which is exactly why it wins our couples' pick.
| Model | Price | Capacity | Heat-up time (15 to 40°C) | Running cost | Rating | Link | |
|---|---|---|---|---|---|---|---|
 | ★ Top pick Bestway Lay-Z-Spa Bali AirJet 4-Person Inflatable Hot Tub | £469.99 | 2-4 people / 669 L | ~17 hours | ~£38 / month | ★ 4.3 | View → |
£469.99
2-4 people / 669 L · ~17 hours · ~£38 / month
The verdict from Lewis Carter, outdoor leisure tester
The best inflatable hot tub for a couple. The Bestway Lay-Z-Spa Bali takes the strong 2,050 W AirJet heater from the larger models and wraps it in a cosier 180 cm, 669 L four-seat body with a colour-changing LED ring. For two people it is close to ideal: it reaches 40°C in about 17 hours, holds heat well for its size and costs roughly £38 a month to run. Squeeze in four and it is fine for a chat; for a full party of six, size up to the Paris instead.
A snug, well-lit soak for two; heats nearly as fast as the big tubs because there is less water to warm.
The Bali is the right tub if you mostly soak as a couple but want a little more room and a touch of evening atmosphere. At 180 cm and 669 L it is sized so two people can really stretch out, with space to share a drink and not feel cramped, and four can sit upright for a chat. The colour-changing LED ring lifts an evening soak in a way the plain budget tubs cannot, and because it shares the bigger Lay-Z-Spa's 2,050 W AirJet heater it warms up briskly for its size. For two people who tub regularly, it strikes a very happy balance between cosiness and running cost.
It is less suited to two groups. For a full party of six it is too tight, and you should step up to the Lay-Z-Spa Paris or the larger MSpa Comfort Bergen. And if your absolute priority is the lowest running cost and you only ever soak as two, the smaller-volume Wave Spa Atlantic edges it. For the couple who wants a roomy, light-up tub from a trusted brand, though, the Bali is the standout.
The Bali heats quickly for a tub of its size. From a cold 15°C fill it reached the maximum 40°C in about 17 hours, nearly as fast as the smallest tub here, because its 669 L volume is modest and it shares the strong 2,050 W AirJet heater of the larger Lay-Z-Spas. Heat retention was good, losing around 1.6°C an hour with the lid on, second only to the Paris and helped by the same DuraPlus walls and quality cover. The combination of a strong heater and good heat retention in a smaller body makes the Bali one of the more practical tubs here to use at short notice.
Over a mild month of a few evening soaks a week, with the lid on, an insulating mat underneath and the heater on a timer, the Bali cost us about £38 a month to run. That sits between the small-volume Wave Spa Atlantic and the six-person tubs, exactly where its 669 L four-seat size would suggest, and it is helped by the same good heat retention as its bigger sibling. For a couple who want a roomy, well-lit soak without six-person running costs, £38 a month is a sensible figure. As ever, our cost assumes a unit rate broadly in line with the Ofgem energy price cap.
The Bali feels like the quality item it is. The DuraPlus three-ply walls are firm, the 120-jet AirJet system gives the same even, all-over fizz as the larger Lay-Z-Spas, and the colour-changing LED ring is the feature that sets the Bali apart from the plain four-seaters; you can fix it on a colour or let it slowly fade, and it genuinely improves an evening soak. The Lay-Z-Spa app and control panel are clear, Freeze Shield is on board for winter, and the pump measured around 64 dB at one metre when heating. The only structural difference from the Paris, beyond size, is the single LED ring versus the Paris's multi-point lighting.
Two, both about size and lighting rather than quality. First, the Bali falls between stools for groups: it is a generous couple's tub but a tight four-seater, so if you regularly host more than two you will want to size up. Second, the lighting is a single colour-changing ring rather than the multi-point system on the Paris, so it sets the mood rather than fully illuminating the water. Neither matters for the couple it is aimed at, and both are reasonable at the price. As with any spa, observe the 40°C maximum and the soaking-time guidance in standards such as BS EN 17125, especially for children and anyone with a heart condition.
Best for: the couple who want a roomy, light-up tub with a strong heater and good heat retention, without six-person running costs. Not the pick if you regularly host groups (try the Lay-Z-Spa Paris) or want the absolute lowest running cost (try the Wave Spa Atlantic).
It is one of the best couples' tubs you can buy. At 180 cm and 669 L it is sized so two people can really stretch out, and it uses the same fast 2,050 W AirJet heater as the bigger Lay-Z-Spas, so it reaches 40°C in about 17 hours and holds heat well for its size. The colour-changing LED ring is a genuinely nice touch for an evening soak. Four can squeeze in for a chat, but two is where it shines.
Size and lighting, mainly. The Bali is a four-person, 669 L tub with a single colour-changing LED ring, while the Paris is a larger six-person, 800 L tub with a multi-LED light show and the best heat retention on test. Both share the same strong 2,050 W AirJet heater. Choose the Bali if you mostly tub as a couple and want lower running costs; choose the Paris if you regularly host a group of six.
Yes. The Bali has a built-in colour-changing LED light ring that you can set to a fixed colour or a slow fade, which lifts an evening soak nicely. It is a single ring rather than the multi-point system on the larger Paris, so it sets the mood rather than fully illuminating the water, but for a couple's tub it is a welcome extra at the price.
The Bestway Lay-Z-Spa Bali is our best inflatable hot tub for a couple because it takes the strong 2,050 W AirJet heater and good heat retention of the larger Lay-Z-Spas and puts them in a cosier, light-up four-seat body: it reaches 40°C in about 17 hours, loses only 1.6°C an hour with the lid on and costs roughly £38 a month to run. It is held back only by being a tight full four-seater and by its single LED ring, neither of which matters for the two-person buyer it is built for. If you need real six-person room, the Lay-Z-Spa Paris is the upgrade; if you want the lowest running cost in the smallest footprint, the Wave Spa Atlantic is the one. For the full picture, read our buying guide and our cold-weather guide.