The very first Apple Watch was released back in April 2015, and by 2016, it had become the best-selling smartwatch in the world. Since then, the Apple Watch has evolved into something quite robust, its water-resistance feature now allowing users to swim while still wearing their watch. But how does it fare in a sauna or steam room?
Do not wear any model of Apple Watch (including Series 9, Ultra 2, or SE) into the sauna or steam room because the temperature and humidity will exceed the conditions recommended by Apple for their watches. For most Apple Watch models, the ambient temperature should not exceed 95° F (typical for traditional saunas, infrared saunas, and steam rooms), and the relative humidity should not exceed 90% (typical in steam rooms).
You can wear your Apple Watch in an infrared sauna if the temperature does not exceed 130° F.
In this article, we will look at the difference between waterproof and water resistance, the environment within a sauna or steam room and how it can affect the watch, and what to do if your Apple Watch gets water damage.
What is the recommended temperature and humidity range of an Apple Watch?
The recommended temperature range for Apple Watches while in operation is between 32°F to 95°F (0°C to 35°C) for non-Ultra models and between -4° to 130° F (-20° to 55° C) for the Apple Watch Ultra and Ultra 2 models.
For longer-term storage (not use), the temperature range is generally wider, between -4°F to 113°F (-20°C to 45°C). Keep in mind that these ranges can differ slightly depending on the exact model and series of the Apple Watch.
Since the Apple Watch Ultra and Ultra 2 are designed to be worn underwater, they also specify an underwater temperature range of between 32° to 104° F (0° to 40° C).
For all Apple Watch models, Apple specifically states that they should not be worn in environments with more than 90% relative humidity, noncondensing.
How does Apple Watch water resistance work (ISO Standard 22810:2010)?
Most Apple Watch models are certified for water resistance under ISO standard 22810:2010. This standard is used to test the water resistance of watches under certain conditions. Here’s how the water resistance of an Apple Watch generally works under this standard:
Water Resistance Depth
Apple Watches that are water-resistant under ISO 22810:2010 are generally suitable for shallow-water activities like swimming in a pool. However, they are not designed for deep-water activities like scuba diving. The exact depth to which the watch can be submerged will depend on the specific model and its certification. For example, some models are rated water-resistant up to 50 meters under ISO 22810:2010.
Activities
ISO 22810:2010 certified Apple Watches can be used for activities in shallow waters such as swimming or splashing. They are not suitable for activities that involve high-velocity water or submersion below shallow depth. Activities like jet skiing, scuba diving, or water skiing are not recommended.
Features to Turn Off
Before going into the water, it’s generally recommended to turn on the Water Lock feature, which locks the Apple Watch’s screen to prevent accidental taps due to water droplets. You can deactivate Water Lock by rotating the digital crown, which also expels any water from the speaker holes.
Limitations
Water resistance isn’t a permanent condition and may diminish over time. The following can compromise the water resistance of the device:
- Damages like cracks or dents
- Improperly closed crowns or loose parts
- Exposing the watch to soaps, shampoos, lotions, and perfumes, as they can affect water seals and acoustic membranes
- Exposure to high-pressure or hot water
After Water Exposure
After submerging the Apple Watch in water, it’s important to clean it with fresh water and let it dry thoroughly before charging or connecting to other devices.
Comparing the water, heat, and humidity resistance of Apple Watch Models
| Apple Watch Model | Best Ambient Temperature Range (°F) | Best Ambient Temperature Range (°C) | Relative Humidity (%) |
|---|---|---|---|
| Series 9 | 32° to 95° | 0° to 35° | < 90%, noncondensing |
| Ultra 2 | -4° to 130° | -20° to 55° | < 90%, noncondensing |
| SE | 32° to 95° | 0° to 35° | < 90%, noncondensing |
| Series 8 | 32° to 95° | 0° to 35° | < 90%, noncondensing |
| Ultra | -4° to 130° | -20° to 55° | < 90%, noncondensing |
| Series 7 | 32° to 95° | 0° to 35° | < 90%, noncondensing |
Apple Watch Series 9
The Apple Watch Series 9 is designed to work best in ambient temperatures between 32° to 95° F (0° and 35° C) and relative humidity less than 90%, noncondensing.
Apple Watch Ultra 2
The Apple Watch Series 9 is designed to work best in ambient temperatures between -4° to 130° F (-20° to 55° C) and relative humidity less than 90%, noncondensing.
Apple Watch SE
The Apple Watch Series 9 is designed to work best in ambient temperatures between 32° to 95° F (0° and 35° C) and relative humidity less than 90%, noncondensing.
Apple Watch Series 8
The Apple Watch Series 9 is designed to work best in ambient temperatures between 32° to 95° F (0° and 35° C) and relative humidity less than 90%, noncondensing.
Apple Watch Ultra
The Apple Watch Series 9 is designed to work best in ambient temperatures between -4° to 130° F (-20° to 55° C) and relative humidity less than 90%, noncondensing.
Apple Watch Series 7
The Apple Watch Series 9 is designed to work best in ambient temperatures between 32° to 95° F (0° and 35° C) and relative humidity less than 90%, noncondensing.
Is it okay to wear an Apple Watch in a traditional (dry) sauna?
No, you should not wear your Apple Watch (any model) into a traditional (dry) sauna because the temperature will exceed the recommended operating range of 32°F and 95°F (0°C and 35°C).
How hot do traditional saunas get?
Traditional saunas, also known as Finnish saunas, typically operate at temperatures between 160-200°F (70-90°C). These saunas use a heat source like a wood-burning or electric stove to heat up rocks, which then radiate heat throughout the enclosed space.
How humid do traditional saunas get?
The humidity in a traditional sauna is generally lower than in a steam room, often ranging between 5% to 30%.
Is it okay to wear an Apple Watch in a steam room?
No, you should not wear your Apple Watch (any model) into a steam room because the temperature could exceed the recommended operating range of 32°F and 95°F (0°C and 35°C) and the 100% relative humidity exceed the recommended operating range of 5-90% relative humidity, noncondensing.
How hot do steam rooms get?
In contrast to traditional saunas, steam rooms work at somewhat lower temperatures, typically ranging between 110-120°F (45-50°C). The environment is created by a steam generator that boils water into steam, which is then released into the room.
How humid do steam rooms get?
Steam rooms are different from traditional saunas in that they are characterized by high humidity levels, often close to 100% relative humidity.
Is it okay to wear an Apple Watch in an infrared sauna?
You can wear an Apple Watch in an infrared sauna if the temperature is below 95°F (or 130 °F for the Apple Watch Ultra and Ultra 2).
How hot do infrared saunas get?
Infrared saunas typically operate at lower temperatures compared to traditional saunas. The temperature range in an infrared sauna is generally between 110-130°F (45-55°C). Unlike traditional saunas that heat the air to warm the body, infrared saunas use infrared panels to produce a heat that is directly absorbed by the skin.
How humid do infrared saunas get?
Infrared saunas are generally not humid; they are designed to provide dry heat. Unlike steam rooms or traditional saunas that can have higher levels of humidity, the focus of an infrared sauna is on the infrared heat waves that directly warm the body. Therefore, the air inside an infrared sauna remains relatively dry.
Will wearing an Apple Watch in the sauna void the warranty?
It’s worth noting that Apple’s warranty often doesn’t cover water damage, even if the device is rated for water resistance under ISO standard 22810:2010. Make sure to read the fine print of the warranty and follow the manufacturer’s guidelines.
Before using your Apple Watch in specific water conditions, always consult the latest guidance from Apple or the documentation that comes with your watch to ensure you’re following all recommended practices and limitations.
Can My Apple Watch Be Fixed if It Has Water Damage?
Apple Watches are designed to be water-resistant, but they are not waterproof. The extent of their water resistance varies by model and is generally indicated by their ISO standard 22810:2010 rating for water resistance. However, even with this rating, Apple does not cover water damage under its standard warranty. The warranty generally excludes damage due to “liquid contact,” which would include water damage.
Here are some options if your Apple Watch has water damage:
- Check AppleCare+ Coverage: If you have purchased AppleCare+ for your Apple Watch, accidental damage including water damage might be covered, although a service fee will usually apply. It’s essential to read the terms and conditions of your AppleCare+ plan to understand what’s covered.
- Visit an Apple Store or Authorized Service Provider: Even if your warranty does not cover the damage, Apple can often repair or replace the device for a fee. Always go to an Apple Store or an authorized service provider to ensure quality repair work.
- Third-party Repair Services: Some third-party companies offer repair services for water-damaged electronics, but using such services will void any existing Apple warranty and there’s no guarantee that the watch can be restored to full functionality.
- Check Credit Card Benefits: Some credit cards offer extended warranty protections that might cover accidental damage. Check to see if this applies to your purchase.
- Replacement: In cases where the watch is beyond repair, a replacement may be the only option. Remember that a new Apple Watch will come with its own warranty and the option to purchase AppleCare+.
Before taking any action, consult the user guide and warranty information for your specific Apple Watch model, as the water-resistance features and warranty terms can vary. Always consult with professionals before making any decisions about repair or replacement.
Conclusion
Apple Watches are made to be water-resistant up to 50 meters (165 feet). If you dry them after use and do not leave the device submerged for extended periods of time, your watch should be fine.
But exposing your Apple Watch to the heat and steam you would find in a steam room, or sauna is different. The steam will be able to work its way into the watch in a way that water cannot. Similarly, the extreme temperature of these rooms can also be detrimental to your Apple Watch, and you may find it no longer works properly. For these reasons, Apple does not recommend wearing your Apple Watch in a steam room or sauna.
For the web story version of this article check here!
If you are interested, I’ve also covered wearing an Oura ring, Samsung Watch, or WHOOP band in the sauna!