SAWATCH-3 / sauna device-3 Release Confirmed

Feb 17, 2026

Make the sauna experience more your own.

To understand how saunas are affecting you,not just by sensation but also through numbers. While enjoying the depth of saunas,for daily conditioning and boosting,you can utilize them more proactively.

The newly developed SAWATCH-3 is not only dedicated to saunas, butdaily activity levels, stress levels, and sleep, widely recording them to allow youto reflect on how saunas affect your daily life.

SAWATCH-3 transforms saunas from just being "good" into an "experience you can master".

Introduction of the New Model

youtu.be/5M-EPqDNayg

New Features

Evolved Sauna Mode

To enjoy the sauna experience deeper and safer, the Sauna Mode has been completely evolved.

In addition to the conventional heart rate, it now displays the "heart rate slope". This allows you to understand your own changes better than ever before.

It also supports the entire series of sauna experiences, including not only inside the sauna room but also the cold bath and resting periods.

You can now set individual notifications based on configured times and heart rates. With notifications tailored to your Sauna Style, you can establish your own sauna rhythm.

Multiple face patterns for the Sauna Mode are available.

You can control what information you need.Light mode and dark mode can also be selected, allowing you to focus more on your sauna session.

New Mode: "Meditation Sauna Mode"

Sometimes, you want to step away from the numbers,and simply face your own senses. For such sauna time, a new "Meditation Sauna Mode" has been introduced.

Designed to keep data off the screen so you can quietly focus on your sauna session,while still accurately measuring the same data in the background as the regular sauna mode.

By separating "time to feel" and "time to reflect," we offer a new way to engage with your sauna session.

Measuring Daily Life

The sauna device 3 isnot just for the sauna.

It records a wide range of daily activity levels, stress levels, and sleep, allowing you to reflect on how sauna sessions affect your daily life.

Furthermore, basic features designed for everyday use, such as timer and alarm functions,have also been enhanced.

It has evolved into a watch that you can naturally wear every day, whether it's a sauna day or not.

Customizable Watch Faces

You can now freely customize the watch face on the Home screen.

You can choose the display design to match your usage and mood.

In the future,we also plan to release limited-edition watch faces tailored to events and campaigns.

We will continue to expand the experience, allowing you to enjoy wearing it not only during your sauna session but also in your daily life.

Hardware Enhancements

Two Color Variations

Matte Black and Champagne Gold are available in two variations.

Designed for both saunas and daily use, we adopted colors and finishes that suit both men and women.

💬 The image is a CG mockup. The actual texture and color may vary slightly from the final product.

Sensor Upgrade

Newly equipped with state-of-the-art sensors, we measure Vital Data such as heart rate with higher precision. Not only during saunas, butthe accuracy of daily and sleep data is also improved.

This makes it possible to more accurately capture how saunas affect your condition.

The sleep tracking function is also enhanced, providing seamless support from the end of the day to the next.

High-Resolution AMOLED Display

Features a high-resolution AMOLED display with excellent visibility.

Even in the brightness of a sauna room or in daily outdoor environments, you can clearly check the information you need.

Inside the sauna,it remains highly legible even with lower display brightness, allowing you to prevent the screen from lighting up unnecessarily in dark sauna rooms.

Combining a beautiful display with ease of viewing, the screen is designed to make you feel comfortable every time you use it.

Enhanced Sauna Durability

Based on the knowledge gained from the development of previous sauna devices,we adopted hardware with a completely original design. Designed specifically for hot and humid sauna environments,heat resistance has been further improved.

During the development phase, destruction tests were conducted at extreme temperatures exceeding the heat-resistance specifications to ensure safety.

To ensure peace of mind for both daily use and sauna use,the warranty period has been extended to one year. We aimed to make it a reliable partner.

Specifications, etc.

Body size: Length 4.85 cm × Width 2.57 cm × Thickness 1.15 cm
Belt width: Approx. 1.6 cm
Compatible wrist circumference: 16.6 cm–23.2 cm
Weight: Approx. 28 g
Colors: Black, Champagne Gold (2 colors)
Materials: Case | Fiber-reinforced polymer, Belt | Silicone/Stainless steel (clasp), Display | Mineral glass
Display size: 1.72 inches
Display resolution: 212 x 520 px
Charging method: Dedicated magnetic cradle (USB-A)
Estimated charging time: Approx. 2 hours
Estimated operating time: Approx. 5 to 7 days *Depending on operating conditions
Operating temperature (internal design standard): -10°C to 100°C
*This value represents the internal design standard of the product and does not indicate the usable ambient or storage temperature.
*This product is designed to be worn and used in a sauna environment. It is not intended for use in other high-temperature environments.
*Please check "Usage Conditions (Guidelines)" for actual usage conditions.
Waterproof rating: IP68, 5ATM
Battery: Equipped with heat-resistant battery
Technical Conformity Mark: Certified (222-260394)

Included Items

sauna device unit
Dedicated band (Exclusive band for sauna device 3)
Dedicated charging cradle (Compatible with SHOWDOWN 1)
User manual (Quick Guide)

Usage Conditions & Warranty Period

Usage Conditions (Guidelines):

Please wear it on your wrist in the sauna room when the indicated room temperature is 100°C or below. Also, please limit each session to 20 minutes or less.
The actual temperature varies depending on the installation position of the thermometer, your seating position, etc.
Do not remove and leave the product or forget it inside the sauna, as the internal temperature may rise if it is left removed.
If any abnormal heat generation, strange odor, deformation, etc., is observed, stop using the product immediately.

Warranty Period:

From the day the sauna device is connected to the "Sanokuni" app, 12 months

* Please note that we do not guarantee that this device will always operate without disruption or error. Damage caused by failing to follow instructions regarding the use of this device is not covered by the warranty. Wear and tear from normal use, force majeure, abuse, or damage resulting from the user's intent or negligence are not covered by the warranty.