Most spa brands sell a cheaper entry model next to a premium one that looks almost the same. The price gap is often a few hundred dollars, and it pays for specific features you can check.
This article covers what usually gets cut. For the rest of the hot tub decisions, start with the hot tub buying guide.
Short answer: entry tiers usually cut the pump, ozone, and heater options, not the shell. If you’d use those features, the premium is worth it.
The worked example: AquaRest
| Discover Standard 400 | Discover Premium 300 | Discover Premium 600 | |
|---|---|---|---|
| Price (AquaRest) | $2,799 | $3,199 | $3,479 |
| Seats | 4 | 2 | 6 |
| Water | 190 gal | 160 gal | 240 gal |
| Jets | 20 stainless | 20 stainless | 29 stainless |
| Pump | 1.5 HP, 1-speed | 1.5 HP | 2 HP, 2-speed |
| Heating | Thermal friction | 1kW/4kW convertible | 1kW/4kW convertible |
| Power | 120V/15A | 120V or 240V | 110V or 230V |
| Ozone | Not listed | Included | Included |
From AquaRest listings, checked September 2026. Warranty terms aren’t published on these listings.
What stays the same
Stainless steel jets and plug-and-play operation on a standard outlet carry across the line.
What gets cut
Pump speeds. The Standard 400 has a 1-speed pump.
Heater. The Standard 400 uses thermal friction heating on 120V only; the Premiums have a 1kW/4kW heater and can convert to 240V.
Ozone. Included on the Premiums, not listed on the Standard.
Here’s what the spec sheet won’t tell you: the cheaper Standard 400 has more seats than the Premium 300. The extra $400 buys features, not size.
Across brands
The Hot Spring Azure ($7,499) publishes tiered warranties: 5 years on the structure and shell, 2 on the cabinet, and 1 on plumbing and components. Published warranty terms are one thing the premium end tends to offer that budget listings often leave out.
Run the numbers per seat and per jet
| Standard 400 | Premium 300 | Premium 600 | |
|---|---|---|---|
| Price per seat | about $700 | about $1,600 | about $580 |
| Price per jet | about $140 | about $160 | about $120 |
| Dry weight | 240 lbs | 232 lbs | 295 lbs |
Our arithmetic from AquaRest’s listed prices, seats, and jets.
On paper the Premium 600 is the best value in the line on both counts. The Premium 300 is the worst, because it puts premium features in a two-seat shell. If you’re choosing within AquaRest, the question isn’t only entry against premium. It is also how many seats you’ll use.
What the missing heater figure means
The Standard 400’s listing names thermal friction heating and gives no heater wattage. So we can’t estimate its heat-up time the way we can for the Premiums, which list 1kW on 120V and 4kW on 240V.
That is itself a difference between the tiers. With the Premium you can do the sum before you buy. With the Standard you have to ask the dealer how many degrees per hour to expect.
Entry tier isn’t the same at every brand
What gets cut depends on the maker. Compare three spas at about the same price:
| Spa | Price | Power | Jets | Water care |
|---|---|---|---|---|
| AquaRest Standard 400 | $2,799 | 120V only | 20 | Ozone not listed |
| Aqualife Current | $2,885 | 120V, convertible to 240V | 14 | Not stated in our data |
| LifeSmart LS100DX | $2,899 | 110V only | 20 | Ozonator included |
From manufacturer and retailer listings, checked September 2026.
At this price, one brand keeps the jets and drops ozone and conversion. Another keeps conversion and has fewer jets. A third includes an ozonator but can’t convert. No one has all three. Decide which of jets, ozone, and a 240V option you’d miss most, and buy the spa that keeps it.
Which to buy
My rule of thumb: in a cold climate or for daily use, pay for the convertible heater. In a mild climate with a few soaks a week, the entry tier is fine.
To compare a budget, mid-range, and premium spa, see our hot tub comparison.
Bottom line: entry tiers cut features, not seats. Pay for the ones you’d use.
Sources
- AquaRest Discover Standard 400, Premium 300, and Premium 600 listings (price, capacity, jets, pump, heater, power, ozone), checked September 2026
- Hot Spring Azure listing (price, warranty tiers), checked September 2026
- Centers for Disease Control and Prevention, “What You Can Do to Stay Healthy in Hot Tubs,” updated May 20, 2025: cdc.gov
- Aqualife Current and LifeSmart LS100DX listings (price, power, jets, ozonator), checked September 2026