Health & Wellness · Head-to-head
Plunge All-In (Gen 2) vs Renu Therapy Cold Stoic 2.0
Which should you buy? Our verdict on both, pulled from our full The Best Cold Plunge Tubs: 4 Compared (and One to Skip) comparison.
The Plunge All-In is the easiest tub to actually use every day: set a temperature, let filtration handle the water, and step in. The Renu Cold Stoic 2.0 is the pick if long-term build quality and a larger tub matter more to you than the sleekest design.
Plunge All-In (Gen 2)
Buy itThe most polished all-in-one: a built-in chiller Plunge calls whisper quiet, ozone filtration, and app control in a living-space-friendly shell.
- Integrated chiller holds a set temperature, with Plunge listing cooling down to 37F, so no daily ice runs; a heater is an optional add-on
- Built-in filtration with onboard ozone sanitation, which Plunge says cleans the full water volume every 15 minutes
- Clean, low-profile design and app control make it easy to live with indoors or out
- Flagship pricing puts it well above ice-only tubs
- Heavy and semi-permanent once filled; not something you move around casually
Renu Therapy Cold Stoic 2.0
Buy itA handcrafted, heavily insulated tub with a built-in chiller that owners describe as built to last.
- Thick foam insulation and a weather-resistant shell, with durability praised in owner reports
- Included chiller plus ozone filtration delivers hold-a-temperature convenience without ice
- 24 tub and deck color combinations for a more furniture-like look
- Premium price and a large footprint that needs a dedicated, level spot
- Very heavy, listed at about 1,155 lbs filled
Side by side
The 7 criteria below are the ones our full comparison judged every product on, narrowed to these two.
| Plunge All-In (Gen 2) Our pick | Renu Therapy Cold Stoic 2.0 | |
|---|---|---|
| Our verdict | Buy | Buy |
| Best for | People who want to plunge daily with zero fuss and will keep it in one spot long term. | Buyers who prioritize long-term build quality and a larger tub, and have a permanent outdoor or garage location. |
| Price tier | $$$$ · flagship | $$$ · premium |
| Temperature control | Built-in chiller, optional heater, precise hold | Built-in chiller, precise hold |
| Build & durability | Excellent, refined shell | Excellent, handcrafted |
| Insulation & efficiency | Strong | Very strong (thick foam) |
| Water hygiene | Filtration + ozone | Filtration + ozone |
| Form factor | Lie-back horizontal tub | Horizontal tub |
| Setup & portability | Semi-permanent, heavy | Semi-permanent, very heavy |
| Noise | Quiet chiller per Plunge | 58 dB at about 3 ft per Renu |
Which one is right for you?
Pick the Plunge All-In (Gen 2) if
people who want to plunge daily with zero fuss and will keep it in one spot long term.
Know before buying: flagship pricing puts it well above ice-only tubs.
Pick the Renu Therapy Cold Stoic 2.0 if
buyers who prioritize long-term build quality and a larger tub, and have a permanent outdoor or garage location.
Know before buying: premium price and a large footprint that needs a dedicated, level spot.
The bottom line
Our overall pick is the Plunge All-In (Gen 2) - The most polished all-in-one: a built-in chiller Plunge calls whisper quiet, ozone filtration, and app control in a living-space-friendly shell. Choose the Renu Therapy Cold Stoic 2.0 instead if buyers who prioritize long-term build quality and a larger tub, and have a permanent outdoor or garage location.
Want the full picture, including the other options we compared and the popular one we'd skip? Read the complete The Best Cold Plunge Tubs: 4 Compared (and One to Skip).