3 Alternatives to the Firzone Portable Infrared Sauna Tourmaline Pro

If you’re shopping for a Firzone Portable Infrared Sauna Tourmaline Pro alternative, the key question is what you actually want from the sauna experience: portability, heat intensity, convenience, or durability. The Firzone sits in the budget-to-mid range at £310.00 with a 4.4★ rating, so it appeals to people who want an accessible home sauna without moving into premium territory. The alternatives below each solve a different problem, but they’re not equal swaps.

1) Smartmak Portable Infrared Sauna — £294.99, 4.4★

This is the closest direct alternative to the Firzone on price, coming in at £15.01 cheaper. That small saving matters if you’re trying to keep the whole setup affordable, especially once you factor in any extra accessories, replacement parts, or a dedicated mat. Like the Firzone, the Smartmak is aimed at people who want a portable personal sauna rather than a permanent cabin, and that makes it the most practical like-for-like comparison.

The main advantage here is flexibility. Smartmak offers a 1 or 2 person large-space design, which gives it a broader use case than many compact portable saunas. If you want to sit solo with more elbow room, or occasionally share the space, that extra capacity is a real comfort upgrade. The upgraded adjustable folding chair is also a useful practical detail: in a portable sauna, the chair matters more than many buyers expect, because poor seating quickly turns a relaxing session into a cramped one. The remote control and LED light add convenience and a slightly more spa-like feel, which helps if you plan to use it regularly.

Build quality is where you should be realistic. At this price point, you’re still buying a lightweight portable unit, so you should not expect the insulation, frame rigidity, or long-term robustness of a fixed Finnish sauna. In practical terms, that means heat retention will depend heavily on how well the tent is sealed and how consistently you use it. You’re also likely to be dealing with a product that needs careful setup and storage, rather than something you leave permanently in place. That said, Smartmak’s feature set is strong for the money, and the price advantage over the Firzone makes it a sensible buy if the Firzone is unavailable.

Verdict: choose the Smartmak if you want the closest budget-friendly alternative to the Firzone, especially if you value a bit more internal space and don’t want to pay extra for a premium badge. It’s the best option for first-time buyers who want portable infrared sauna convenience without overcommitting financially.

2) LifePro Infrared Sauna Blanket — £359.99, 4.4★

At £359.99, the LifePro is £49.99 more expensive than the Firzone, so this is not a budget alternative. It’s a different kind of product altogether: rather than sitting inside a tent-style sauna, you lie inside a heated blanket. That design changes the experience significantly, and the trade-off is worth understanding before you buy.

The biggest practical advantage of a sauna blanket is simplicity and speed. It is portable, easy to store, and usually much quicker to deploy than a tent or cabin-style unit. For people with limited space in a UK flat, spare room, or bedroom, that can be a major benefit. The adjustable 25–80°C range and handheld controller suggest a decent level of control over session intensity, which is useful if you’re using it for relaxation, recovery, or a sweat session after exercise. The included storage bag is also a practical plus for anyone who needs to pack it away after each use.

However, the experience is not the same as a portable infrared sauna tent. A blanket gives you concentrated heat and sweating, but it does not provide the upright, enclosed “sauna room” feel that many buyers are expecting. If your goal is a more traditional wellness routine, the blanket can feel less immersive. Comfort is also more dependent on your tolerance for lying still in a sealed wrap, which some people love and others find restrictive. In terms of build quality, a sauna blanket can be easier to keep clean and store, but it also relies on the quality of the heating elements, internal lining, and zip/seal design. If those are mediocre, the whole product feels less premium than the price suggests.

Compared with the Firzone, you are paying more for convenience and portability, not necessarily a stronger sauna-style experience. For some buyers, that’s exactly the right trade-off. For others, it will feel like a downgrade in atmosphere and usability.

Verdict: choose the LifePro if you want the easiest possible home infrared setup and you value storage convenience over the classic sauna format. It’s best for apartment living, frequent travel, or users who prefer lying down rather than sitting in a tent.

3) Harvia Spirit SP90XW 9 kW WiFi Black Finnish Sauna Oven — £990.00, 4.8★

This is in a completely different league from the Firzone. At £990.00, it costs £680 more, so it only makes sense if you are building or upgrading a proper sauna rather than buying a portable wellness gadget. But if your priority is performance, longevity, and a genuine Finnish sauna experience, this is the standout option.

The Harvia Spirit SP90XW is a 9 kW sauna oven with WiFi control, which means it is designed to heat a dedicated sauna room rather than a portable enclosure. That extra power is the practical headline. A 9 kW heater gives you the kind of strong, consistent heat that portable infrared products simply cannot match. In real-world terms, this means faster warm-up, better heat saturation, and the ability to create a proper traditional sauna environment with high ambient temperatures and löyly when water is thrown on stones.

Build quality is also in a different category. Harvia is a respected sauna manufacturer, and the 4.8★ rating reflects the premium positioning. This is the sort of product you buy for long-term installation, not casual experimentation. The WiFi control and Xenio WiFi system add convenience, allowing you to manage the sauna remotely and preheat before use. That is especially useful in the UK, where you may want to avoid waiting around for the sauna to reach temperature after a cold day.

The trade-off is obvious: this is not portable, not cheap, and not plug-and-play. You need a proper sauna space, suitable electrical installation, and likely professional fitting. Running costs will also be higher than a small portable infrared unit, because a 9 kW heater draws serious power. But that higher energy use is the price of a more authentic sauna session, stronger heat, and much better long-term durability.

Compared with the Firzone, the Harvia is not an alternative in the “same product, different brand” sense. It is an upgrade path for someone who has moved beyond portable wellness gear and wants a serious home sauna build.

Verdict: choose the Harvia if you are fitting out a proper sauna room and want premium Finnish performance with smart control. It is the best choice for serious sauna users, but it is overkill for anyone simply replacing a portable infrared product.

Which alternative is best overall?

If you want the closest replacement for the Firzone, the Smartmak is the most sensible choice because the price is similar and the use case is nearly identical. If you want something more compact and easier to store, the LifePro sauna blanket is the better lifestyle fit, even though it costs more. If you want the best sauna experience full stop and you have the budget and space, the Harvia is the clear premium winner — but it belongs in a different category.

For most buyers searching for Firzone alternatives, the decision comes down to this: portable tent-style convenience, blanket-style simplicity, or proper sauna-room performance. The Firzone sits in the middle of that market, which is why alternatives can either save you money, improve convenience, or dramatically upgrade the experience.