Sunray Grandby 3-Person Outdoor Sauna vs Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater

The Sunray Grandby 3-Person Outdoor Sauna costs $3,990 and the Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater costs $4,098. This comparison covers the full spec sheets of both, the deciding difference between them, and which buyer each one fits.

Prices verified August 2026

How we vet

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Our verdict

The choice between the Sunray Grandby 3-Person Outdoor Sauna ($3,990) and the Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater ($4,098) comes down to exterior height. The Sunray Grandby 3-Person Outdoor Sauna offers exterior height of 87", while the Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater offers 80". The Sunray Grandby 3-Person Outdoor Sauna saves you $108; pay the difference for the Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater only if that gap buys a spec you will use.

Prices verified August 2026.

How we vet

Which one is right for you?

It depends on your situation.

Choose the Sunray Grandby 3-Person Outdoor Sauna if

Sunray Grandby 3-Person Outdoor Sauna: You want exterior height of 87". The Sunray Grandby 3-Person Outdoor Sauna also costs $108 less than the Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater.

Choose the Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater if

Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater: You want exterior height of 80".

Full specs comparison

Sunray Grandby 3-Person Outdoor Sauna vs Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater full spec comparison
SpecSunray Grandby 3-Person Outdoor SaunaSunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater
Price$3,990$4,098
Type··
Heat Type··
Temp Range··
Heat-Up Time··
Capacity··
Dimensions72" x 47" x 87"70" x 47" x 80"
Weight425 lbs425 lbs
EMF Level··
PowerETL/CSA Certified - Meets all US and Canadian electrical safety standards - 120V, 20 amps220V, 50/60HZ 30 AMP Dedicated Outlet Required 4500 Watts
Warranty··

Pros and cons

Sunray Grandby 3-Person Outdoor Sauna

Pros

    Cons

      Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater

      Pros

        Cons

          Sunray Grandby 3-Person Outdoor Sauna vs Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater: common questions

          How much more does the Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater cost than the Sunray Grandby 3-Person Outdoor Sauna?

          The Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater costs $4,098, which is $108 more than the $3,990 Sunray Grandby 3-Person Outdoor Sauna. Beyond price, the main spec difference is exterior height: the Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater offers exterior height of 80", the Sunray Grandby 3-Person Outdoor Sauna offers exterior height of 87".

          Is the Sunray Grandby 3-Person Outdoor Sauna worth it over the Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater?

          It depends on the spec you need, and we do not name one of these two better than the other. The Sunray Grandby 3-Person Outdoor Sauna offers exterior height of 87", while the Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater offers 80". The Sunray Grandby 3-Person Outdoor Sauna costs $3,990 and the Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater costs $4,098, a difference of $108.

          What is the main difference between the Sunray Grandby 3-Person Outdoor Sauna and the Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater?

          The Sunray Grandby 3-Person Outdoor Sauna offers exterior height of 87"; the Sunray Hampton 3-Person Indoor Traditional Sauna with 4.5kW Harvia Heater offers exterior height of 80". That is the deciding spec difference between the two.

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