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Best hot tubs 2021

Best Hot Tubs 2021
(Image credit: Getty)

Kick back and relax with one of the best hot tubs and allow yourself a whole new world of tranquility in your own backyard. Buying a hot tub, rather than an inflatable hot tub, is an investment worth taking seriously; if maintained with care, it’ll last for many years and provide you a valuable escape from the stresses of everyday life. Price and size are major factors to take into account, and with help from BuyerZone, this guide can make clear the best choice for you, with picks from brands such as Sundance, Jacuzzi, and Bullfrog.

When selecting the best hot tub for your home, it’s important that you know how much outside space you’ll have available. Those with ample outdoor space may want to opt for more seating, with some tubs fitting up to nine people, or add in snazzy features like waterfalls. Those on a tighter budget or with less space may want to check out compact tubs, with space for two seats and above. Whatever the size of your hot tub, there are plenty of great features like built-in WiFi and Bluetooth, to transform your backyard into an enviable oasis. 

Aside from leisure, you may be looking for a hot tub in order to benefit your health, as the warmth of the water and pressurized jets are said to alleviate aches and pains, such as complications caused by arthritis. Within this guide, there’s further information on how customizing your hot tub with pressurized jets can target problem areas prone to pain. For more hydrotherapy solutions, be sure to check out the best swim spas.

The best hot tub brands

1. Sundance Spa: Best hot tub overall 

Sundance Spa: Best hot tub overall

(Image credit: Sundance Spas)

Sundance Spas

Simply, the best hot tub brand overall, with quality products, premium features and plenty of choice


Price range: Entry level - luxury | Sizes: 2-3 seats - 7-8 seats | Energy efficient models: Yes

Reasons to Buy

UV-C sanitation and water features
More color options

Reasons to Avoid

Mostly premium and luxury models
SmartTub subscription fee

Sundance Spas offers the best hot tub features, from standard built-in smart capabilities to its adjustable Fluidix jets. Though most of Sundance’s models fall in the premium and luxury price ranges, the brand does offer a good variety of spas
across the entry- and mid-level price ranges in small, medium and large tubs. Even the less expensive models come with multiple shell, cabinet and cover color options, as well as premium features such as UV-C water sanitation and waterfalls that many other companies charge as upgrades. All Sundance hot tubs are compatible with the SmartTub mobile app, though this requires a paid subscription after the first year - a bit of a bummer. 

2. Master Spas: Best value hot tubs

Master Spas: Best value hot tubs

(Image credit: Master Spas)

Master Spas

A fantastic hot tub company for people who want a budget spa


Price range: Entry level - luxury | Sizes: 2-8 seats | Energy efficient models: Yes

Reasons to Buy

Many entry and mid-priced hot tubs 
Unique bio-magnetic therapy
Made in U.S.

Reasons to Avoid

Few customization options

Made in the U.S., Master Spas’ hot tubs offer a good mix of unique standard features and desirable upgrades, especially in the entry-level and mid-level price ranges. The brand has 21 hot tub models, 13 of which fall into the entry- and mid-level price ranges, and all of which are made in the US. 

These spas span all sizes and represent four product lines: Clarity, Healthy living, Twilight and the Michael Phelps Legend series. Master Spas offers several premium features standard in all models, including waterfalls and a unique bio-magnetic therapy system. 

Master Spas also has the best upgrade options, including both UV-C and ozone sanitation options, a Wi-Fi module and Bluetooth audio. 

3. Jacuzzi: Best luxury hot tub company

Jacuzzi: Best luxury hot tub company

(Image credit: Jacuzzi)


Jacuzzi creates some of the best high-end hot tubs you can buy, but it also has some reasonably priced options


Price range: Budget to luxury | Sizes: 2-9 seats | Energy efficient models: Yes

Reasons to Buy

Iconic brand, with a great reputation
There are budget options, but it specializes in premium tubs
Find anything from two to nine seaters 

Reasons to Avoid

Limited customization options

Considered by many to be the most iconic hot tub brand, Jacuzzi has a range of 26 hot tubs to choose from. Despite its transparent pricing tiers, it is undeniable that you’ll find buying a Jacuzzi tub a lot easier if you have a larger budget. The brand has only two hot tubs in its most budget range, but five in the luxury range. The brand offers hot tubs in two seater models, but it goes up to nine seaters, which is great for those hoping to entertain in their new tub. 

Jacuzzi was founded to offer hydrotherapy for those suffering with arthritis, but these tubs also come with an attractive exterior and numerous color options. Although there’s no explicitly energy-saving hot tubs, Jacuzzi designs its tubs to preserve the heat from the motor and use this to warm the water. The jet system uses a mix of air and water to provide high-pressure massages, and the jet placement targets key muscles from your neck to your legs. 

The Jacuzzi warranty depends on the tub you buy, but they go up to ten years on the shell structure, and five years on the electrical system. It’s not the best we’ve seen, but this is a pretty standard industry coverage. 

4. Bullfrog Spa: Best hot tubs for massages 

Best hot tubs

(Image credit: Bullfrog)

Bullfrog Spas

A hot tub company that will give you the best massages


Price range: Mid-range - luxury | Sizes: 2-8 seats | Energy efficient models: Yes

Reasons to Buy

 JetPak system with interchangeable jets 
18 types of massage therapy
Many customization options

Reasons to Avoid

No salt water or UV sanitation options

Bullfrog Spas’ unique JetPak Therapy System lets you customize your massage with 18 options that each target a different type of massage therapy. Though most hot tubs offer some degree of customization when it comes to color options and even upgradeable features, Bullfrog Spas lets you pick exactly what kind of jets and massage therapy to put in each seat. 

The interchangeable JetPaks, available for most models of Bullfrog Spas, give you sixteen seat back options for each seat in your spa that require less tubing and are more energy efficient than many spas on the market. Though Bullfrog does sell hot tub models without the JetPak system, the interchangeable jets and customization options are really the big selling point of this brand. Aside from the pre-set models, Bullfrog also allows you to design your own completely custom spa, as well.

5. Hot Springs: Best hot tubs for compact areas

Hot Springs: Best hot tubs for compact areas

(Image credit: Hot Spring)

Hot Spring

A hot tub company that has some of the best hot tubs for small spaces


Price range: Entry level - luxury | Sizes: 2-7 seats | Energy efficient models: Yes

Reasons to Buy

Five small hot tubs
Energy-efficient focus

Reasons to Avoid

Fewer shell color options
No UV-C sanitation option

Hot Spring has 20 hot tub models, five of which are built for two or three people. Most of the hot tub manufacturers we evaluated have only three models, so Hot Spring offers a better selection of small spas. Three of these spas are part of the brand’s Hot Spot collection, which fall into the value price range and have 10-17 jets. 

The other two are premium-priced spas from Hot Spring’s top tier Highlife collection and have 14 or 22 jets. Hot Spring also has 10 medium spas and five large spas with various price ranges, all of which come equipped with energy-saving features and are certified by the California Energy Commission.

6. PDC Spas: Best large capacity hot tubs

PDC Spas: Best large capacity hot tubs

(Image credit: PDC Spas)

PDC Spas

This swim spa company also produces some great large-capacity hot tubs.


Price range: Entry-level - luxury | Sizes: 2-7 seats | Energy efficient models: Yes

Reasons to Buy

Good variety of price points
Eight six-seven capacity hot tubs
Some great compact models, too

Reasons to Avoid

Not the largest range

PDC Spas has a great selection of hot tub and swim spa combos, but it also creates some of the best large capacity hot tubs we reviewed. There's 16 hot tubs in total. The company has two three-person hot tubs, but it has eight models which fit either six or seven people. Each of these come with different features and feature in a different range of PDC's hot tub series. 

There's three ranges of hot tubs to choose from. The LifeStyle Series is the most affordable of the group, with the Premium Series bridging the gap to the most premium Luxury Series. These tubs come with a 35 year warranty,  but the LifeStyle models get a comparably weaker 10 year coverage. 

7. Cal Spas: Biggest range of hot tubs

Cal Spas: Biggest range of hot tubs

(Image credit: Cal Spa)

Cal Spas

A hot tub company with the biggest range of spas


Price range: Entry level - luxury | Sizes: 2-7 seats | Energy efficient models: Yes

Reasons to Buy

51 models and multiple shell colors
Salt water, UV-C and ozone sanitation

Reasons to Avoid

Overwhelming options for features and models 
No pricing info

With so many options, the website is difficult to navigate, and Cal Spas does not have pricing guidelines for its products, which makes narrowing down your options without speaking to a dealer inconvenient. However, Cal Spas has the most hot tub models available across its six hot tub product lines. The manufacturer has 51 hot tub models and several color and upgrade options as well. 

Cal Spas is one of the only spa companies we evaluated with a salt water sanitation option, as well as UV-C and ozone options. This spa brand is a great option for different hot tub shapes as it offers oval and triangle spas in addition to the usual square options. All models are made in the U.S. which makes any necessary repairs super convenient. 

Still not sure which type of hot tub is best for you? Fill out this quick Buyer Zone survey to see customized recommendations...

How to pick your hot tub

How to choose the right hot tub

Best hot tubs 2021

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Before buying a hot tub, there are some key considerations you need to make to ensure you choose the right one. It’s a subjective process - everyone’s space, taste and budget is different. Here are the key things to think about to make sure you buy the best hot tub for you… 

How big should a hot tub be?

Make sure you choose the right hot tub size by considering, firstly, how many people will be using it, and secondly, the space you have available. Small hot tubs will fit two-three people; larger hot tubs can fit eight or more. Most hot tub manufacturer’s websites list both the dimensions of each hot tub and how many people can sit comfortably within the tub, so you can be sure you're picking the right size. 

Hot tub prices

Do your homework. We’d recommend viewing a hot tub in person, if possible, to do a wet test. It is best to try the hot tub out before buying it, as the moulded seats are designed for an average size person and if you are on the smaller or taller size these seat can become uncomfortable. 

However, there are lots of features to consider when buying a hot tub, from seating style (do you want lounge-style seating, therapeutic seats or cool-down seats?) to jet type, the water filtration system (salt, ozone or UV-C?) and more. Try to choose an energy-efficient hot tub, too. Here are some areas to think about...

Hot tub build quality

When shopping, look into the materials used in the hot tub’s construction. Most hot tubs use an acrylic interior shell supported by a frame made of either treated wood or metal and surrounded by a wood or synthetic cabinet. As long as it isn’t exposed to elements, the frame should last the lifetime of your hot tub, no matter what it’s made of. 

Pay more attention to the hot tub’s insulation, as this directly affects operating costs. A poorly insulated spa costs more to heat because the heater has to run more to keep water at a set temperature, and overworking the components can lead to early malfunction. Getting a well-insulated hot tub is particularly important in locations that reach low temperatures. To this end, look for a full-foam insulated hot tub rather than a model with partial foam insulation or one that just uses a thermal wrap. 

Hot tub prices

How much does a hot tub cost?

The cost of a hot tub can be anywhere from $3,000 for a budget-priced tub to over $16,000 for a top-of-the-line spa with custom upgrades. Generally, inflatable hot tubs are the cheapest; above-ground hot tubs are more moderately priced; and in-the-ground hot tubs are the most expensive. 

Your budget will dictate which options are available to you, so first consider how much you have to spend on your new hot tub. Also, it's a good idea to research how much a certain hot tub might cost to run and maintain (and make sure you choose an option with a lifetime guarantee).  

Hot tub manufacturers rarely list the prices of hot tubs online because there are several factors that affect the price of each sale, including geography, dealer promotions and even the time of year. Of course, this also allows retailers to negotiate a higher price with people who don’t have good bartering skills. 

Many hot tub companies will categorise their selections into price ranges: budget, entry-level, mid-level, premium and luxury. However, some won't provide price guidelines unless you enquire. Bear in mind that the final price of your hot tub might differ significantly from the price of the tub itself, after you've included any upgrades or extras, installation and operating costs. 

What you should know before buying a hot tub

Plan where you want to put your hot tub

Where will you hot tub go? This will be a major factor in deciding which type of hot tube to get and the features you'll need, so plan the location of your hot tub carefully. 

If you are placing a hot tub outside, it is best to choose a model that holds heat well, so you’re not wasting energy by constantly reheating it. You might also want to consider the view, the distance from your house, and even how visible you will be to your neighbors. If you are placing your hot tub indoors, you might want to choose an area that is well ventilated so condensation doesn’t damage your home. 

Hot tub therapy options

The number of jets in the tub, in addition to the placement and type of hydrotherapy the jets deliver are important features to think about when purchasing a hot tub. Hot tub manufacturers use different techniques to imitate a variety of massage types from deep tissue to light caress. Some use a combination of water and air, some use high-pressure and others use high-flow jets. If you want a full-body massage, look for a hot tub with lounge seats and leg or feet jets. Some spa models combine hydrotherapy and aromatherapy for a more relaxing experience. 

Hot tub filtration & sanitation

The filtration and water sanitation systems in your hot tub keep the water sparking and clean. Spa models use different combinations of chemicals, filters, ozone and UV-C light to make sure your water stays clean. Most of the models we evaluated use multiple filters to remove dirt and small debris from the water. Many also offer ozone or UV-C sanitation options as standard installation or upgrades. These systems eliminate or neutralize bacteria as well. 

Hot tub upgrades and extras

Most hot tub manufacturers offer a variety of upgrades and extra features. In addition to an amazing soak, most manufacturers offer Bluetooth sound systems, mood lighting and waterfall or fountain water features. Many top-tier models also have built-in coolers and external seating. Some also have smart capabilities, such as an optional Wi-Fi module or companion mobile app. These smart tubs make remotely controlling or monitoring your spa easy, and they have the added benefit of making it easy to contact your local hot tub dealer.

Hot tub appearance

Most of the hot tubs we reviewed come in multiple shell and cabinet styles, with manufacturers offering more options for higher-tier product lines. Though not necessarily the most important aspect of your hot tub, appearance does play a role in the relaxing effects of your spa. Choosing a shell and UV-resistant cabinet in colors that blend in with your backyard creates a more laid-back setting, rather than an eye-sore.