Not every cold therapy need calls for a tub of water. A small group of devices cools one spot, with no ice and no setup.
This article compares one of them with a cold plunge. For the rest of the category, see the home wellness equipment buying guide.
Short answer: buy a compact device for one sore area. Buy a plunge if you want whole-body cold immersion. One doesn’t stand in for the other.
Side by side
| Therabody RecoveryTherm Cube | A cold plunge tub | |
|---|---|---|
| Price | $159.99 | From under $100 for a basic ice bath to several thousand with a chiller |
| Covers | One small area | Your body |
| Needs | A charged battery | Water, plus ice or a chiller |
| Modes | Heat, cold, contrast | Cold; some tubs also heat |
| Size | 4.4 x 2.2 x 3.1 in., 345g | A fixed spot in the home or yard |
| Session | Up to 120 min battery (60 for contrast) | Never more than 5 minutes, per Cleveland Clinic |
Cube specs from Therabody’s product page, October 8, 2026.
What the Cube does
It straps on and delivers heat, cold, or alternating contrast to the spot it’s touching. It needs no ice, and it weighs 345 grams.
Here’s what the spec sheet won’t tell you: Therabody’s product page doesn’t state the temperatures. Its support FAQ lists three cold settings (46, 54, and 61°F) and three heat settings (95, 102, and 109°F).
How long to use cold on one spot
The battery lasts far longer than a session should. Cleveland Clinic’s advice on icing an injury:
- Don’t go past 20 minutes.
- In many cases, 10 to 15 minutes is fine.
- Space sessions at least one to two hours apart.
That advice is written for ice packs. I’d apply it to a cold device on bare skin and follow the Cube’s own instructions first.
Cleveland Clinic also lists people who should be careful with cold: children, older adults, people with Raynaud’s syndrome, people with nerve damage, and people who smoke.
What a plunge does that a device can’t
A plunge puts your body in cold water. Cleveland Clinic gives beginners a range of 50 to 59°F, a minute or two per session, and a hard limit of 5 minutes.
A device on your knee doesn’t do that, however cold it gets.
When the device is the better buy
You get targeted cold with no ice, no water, and nothing to clean. You give up whole-body immersion.
It fits if you have one area that bothers you, if you travel, or if you have no room for a tub.
When the plunge is the better buy
Choose a plunge if immersion is the point. Budget for the tub, the water care, and the space.
Contrast mode
The Cube can alternate heat and cold on one spot. That’s a convenience. To get both any other way, you’d need a heating pad and an ice pack.
My rule of thumb: name what hurts. One spot means a device. “I want to do cold plunges” means a tub.
For tubs, see the cold plunge buying guide.
Bottom line: $159.99 buys a targeted tool, not a small cold plunge. Pick by the job.
This article is general information, not medical advice.
Sources
- Therabody, RecoveryTherm Cube product page (price, battery life, size, weight, warranty), accessed October 8, 2026: therabody.com
- Therabody support FAQ for RecoveryTherm Cube (temperature settings), via search result, October 8, 2026
- Cleveland Clinic, “How Long Should You Ice an Injury?” December 18, 2024: health.clevelandclinic.org
- Cleveland Clinic, “Are ‘Cold Plunge’ Ice Baths Good for You?” May 8, 2026: health.clevelandclinic.org