Buy from Polar Monkeys: Brainpod 2.0
Polar Monkeys' own page for the Brainpod 2.0. Not a paid link.
Brainpod 2.0 vs Cold Stoic 3.0
Polar Monkeys Brainpod 2.0 and Renu Therapy Cold Stoic 3.0, compared on the figures their makers publish. The makers of both cold plunges with a chiller state water capacities within 30% of each other.
The makers' figures side by side
| Specification | Polar Monkeys Brainpod 2.0 | Renu Therapy Cold Stoic 3.0 |
|---|---|---|
| Outside dimensions | Cold Plunge Dimensions Standard: 67”L | XL: 71”L | 31.5”W X 23.5”H Total Footprint Standard: 80”L | XL: 84”L | 31.5”W X 23.5”H | Body: 70” L x 33” W* x 35” H |
| Inside dimensions | — | Tank: 40” L x 25” W x 31” D |
| Electrical supply | The Brainpod 2.0 plugs into a standard 120V dedicated outlet (15 Amps) | 120V / 15A Dedicated Circuit Recommended; GFCI Power Plug with 12 Foot Power Cord |
| Weight | Weight Empty 110 lb / 50 kg; Weight Filled 819 lb / 372 kg | Product Weight (Dry): 365 lbs |
| Material | acrylic; Fully Insulated Tub | — |
| Water capacity | 85 gal / 322 L | 95 US Gallons |
| Chiller | 1.0 HP ChillX | Integrated Wifi-Controlled Chiller & Heater with Advanced Filtration and Ozone Purification System; can cool down to 37°F (2.7 °C) or heat up to 104°F (40 °C) |
| Lowest temperature the maker states | 32°F / 0°C | 37°F (2.7 °C) |
| Filtration and sanitation | Automatic ozone filtration | Advanced Dual-Stage Filtration System; Advanced Filtration and Ozone Purification System |
| Kit includes | — | Included Basic Tub Lid |
| Warranty | Every Brainpod 2.0 comes with a 2-year limited warranty covering defects in materials and workmanship | 5-Year Limited Warranty |
| Price on the maker's site | $10,990 (polarmonkeys.com, 29 Sep 2026; the lowest-priced option) | $11,399 (on Renu Therapy's own site, 29 Sep 2026; the lowest-priced option) |
Each figure is the maker's own, as cited row by row on the Brainpod 2.0 and Cold Stoic 3.0 pages and listed in the sources below. A dash means the figure is not on the maker pages we cite. Figures marked "about" are Saunakivi's unit conversions of the maker's figure.
Where to buy
See it at Renu Therapy: Cold Stoic 3.0
Renu Therapy's own page for the Cold Stoic 3.0. Not a paid link.
Where the published figures differ
- Outside dimensions: Brainpod 2.0: Cold Plunge Dimensions Standard: 67”L | XL: 71”L | 31.5”W X 23.5”H Total Footprint Standard: 80”L | XL: 84”L | 31.5”W X 23.5”H. Cold Stoic 3.0: Body: 70” L x 33” W* x 35” H.
- Electrical supply: Brainpod 2.0: The Brainpod 2.0 plugs into a standard 120V dedicated outlet (15 Amps). Cold Stoic 3.0: 120V / 15A Dedicated Circuit Recommended; GFCI Power Plug with 12 Foot Power Cord.
- Weight: Brainpod 2.0: Weight Empty 110 lb / 50 kg; Weight Filled 819 lb / 372 kg. Cold Stoic 3.0: Product Weight (Dry): 365 lbs.
- Water capacity: Brainpod 2.0: 85 gal / 322 L. Cold Stoic 3.0: 95 US Gallons.
- Chiller: Brainpod 2.0: 1.0 HP ChillX. Cold Stoic 3.0: Integrated Wifi-Controlled Chiller & Heater with Advanced Filtration and Ozone Purification System; can cool down to 37°F (2.7 °C) or heat up to 104°F (40 °C).
- Lowest temperature the maker states: Brainpod 2.0: 32°F / 0°C. Cold Stoic 3.0: 37°F (2.7 °C).
- Filtration and sanitation: Brainpod 2.0: Automatic ozone filtration. Cold Stoic 3.0: Advanced Dual-Stage Filtration System; Advanced Filtration and Ozone Purification System.
- Warranty: Brainpod 2.0: Every Brainpod 2.0 comes with a 2-year limited warranty covering defects in materials and workmanship. Cold Stoic 3.0: 5-Year Limited Warranty.
- Price on the maker's site: Brainpod 2.0: $10,990 (polarmonkeys.com, 29 Sep 2026; the lowest-priced option). Cold Stoic 3.0: $11,399 (on Renu Therapy's own site, 29 Sep 2026; the lowest-priced option).
Figures we cite for only one of the two: inside dimensions (only Renu Therapy's cited pages give it); material (only Polar Monkeys's cited pages give it); kit includes (only Renu Therapy's cited pages give it). Ask the other maker before treating the two as equal on those points.
Read each one in full
Polar Monkeys Brainpod 2.0
Polar Monkeys · cold plunge with a chiller · 85 gallons · 120 V supply
Renu Therapy Cold Stoic 3.0
Renu Therapy · cold plunge with a chiller · 95 gallons · 120 V supply
Sources
- Brainpod 2.0 - Polar Monkeys — Polar Monkeys
- Cold Stoic 3.0 - Renu Therapy — Renu Therapy