Most Fitbits are water-resistant, not waterproof — and the difference matters
Fitbit uses the term water-resistant for nearly all its current models, which means they can handle sweat, rain, and brief immersion in water. However, waterproof — the ability to survive extended submersion or high-pressure water — is not the same thing. Only a few Fitbit models are truly waterproof for swimming and diving. The rest will survive a splash or a shower, but not a pool workout or a trip to the beach.
The distinction matters because water-resistant models can fail if you wear them while swimming laps or snorkeling. Fitbit rates its devices using ATM ratings, which measure pressure resistance in atmospheres. A device rated 3 ATM can handle splashes and brief immersion; 5 ATM covers swimming; 10 ATM covers diving. Knowing your model's rating before you wear it in water will save you from a ruined device.
Key Takeaways
- Fitbit Sense 2, Versa 4, Inspire 3, and Charge 6 are water-resistant at 5 ATM, meaning they survive swimming but not diving or high-pressure water jets.
- Fitbit Ace LTE is rated 5 ATM and can be worn while swimming, though it is designed for children and includes GPS.
- Older Fitbit models like Charge 5, Versa 3, and Inspire 2 are rated 5 ATM as well, so water-resistance does not change much between generations.
- No current Fitbit model is rated 10 ATM, so none are safe for diving, snorkeling, or water sports with high-pressure jets.
- Even water-resistant models should not be exposed to salt water, chlorine, or hot water above 104°F, as these can damage the seals.
Fitbit models rated 5 ATM for swimming
The Fitbit Sense 2, Versa 4, Inspire 3, and Charge 6 all carry a 5 ATM water-resistance rating. This means they can be worn during swimming in a pool or open water. The rating covers continuous immersion in water up to 50 meters deep for up to 10 minutes, though you will not be diving to that depth with a Fitbit.
The Fitbit Ace LTE, designed for children ages 6 and up, also has a 5 ATM rating and includes built-in GPS. Parents can use it to track their child's location and activity. Like the other 5 ATM models, it is safe to wear while swimming.
If you own an older Fitbit — the Charge 5, Versa 3, or Inspire 2 — these are also rated 5 ATM. Water-resistance has remained consistent across recent generations, so upgrading for water protection alone is not necessary.
Models with lower water-resistance ratings
Some Fitbit models carry only a 3 ATM rating, which limits them to splashes and brief immersion. The Fitbit Inspire, the original version, is rated 3 ATM. This means it can handle rain and sweat but should not be worn while swimming or showering.
Fitbit also makes the Fitbit One, a clip-on tracker with no water-resistance rating at all. This model should be removed before any water exposure. If you shower or swim regularly, the One is not the right choice.
Check your device's manual or Fitbit's official specifications page to confirm your model's rating before you wear it in water. The rating is usually printed on the back of the device or in the product documentation that came with it.
What water-resistant does not mean
A 5 ATM rating does not protect your Fitbit from salt water, chlorine, or hot water. Fitbit recommends rinsing your device with fresh water after exposure to any of these. Salt water and chlorine can corrode the seals and damage the electronics inside. Hot water above 104°F can also weaken the seals and cause internal damage.
Water-resistant also does not mean the device will survive being dropped in water repeatedly or left submerged for hours. The 5 ATM rating is tested under controlled conditions and assumes normal use — a swim session, not a full day at the bottom of a pool.
If your Fitbit gets wet and stops working, do not try to charge it when ready. Remove the battery if possible, let the device dry completely for at least 24 hours in a warm, dry place, and then try charging it again. If it still does not work, contact Fitbit support.
How to care for your water-resistant Fitbit
After swimming or any water exposure, rinse your Fitbit with fresh water and dry it thoroughly with a soft cloth. Pay special attention to the charging contacts and any seams where water might collect. Do not use a hair dryer or place the device in direct sunlight to dry, as heat can damage the battery and screen.
Avoid wearing your Fitbit in a hot tub, sauna, or steam room. The combination of heat and moisture can compromise the seals faster than cold water alone. Similarly, do not wear it while using a pressure washer or taking a very hot shower.
If your Fitbit has a removable band, take it off and dry both the band and the device separately. Moisture can collect under the band and cause corrosion over time.
Fitbit models and their water-resistance ratings at a glance
| Model | Water-Resistance Rating | Safe for Swimming |
|---|---|---|
| Sense 2 | 5 ATM | Yes |
| Versa 4 | 5 ATM | Yes |
| Inspire 3 | 5 ATM | Yes |
| Charge 6 | 5 ATM | Yes |
| Ace LTE | 5 ATM | Yes |
| Charge 5 | 5 ATM | Yes |
| Versa 3 | 5 ATM | Yes |
| Inspire 2 | 5 ATM | Yes |
| Inspire (original) | 3 ATM | No |
| One | None | No |
Frequently Asked Questions
Can I wear my Fitbit in the shower?
If your model is rated 3 ATM or higher, yes — brief exposure to shower water is fine. However, avoid very hot water above 104°F and do not submerge it intentionally. Rinse it with fresh water afterward and dry it completely.
What happens if I wear a non-water-resistant Fitbit in water?
Water can seep into the device and damage the battery, screen, or internal circuits. The device may stop working when ready or fail days later as corrosion spreads. Fitbit's warranty does not cover water damage to models not rated for water exposure.
Is my Fitbit safe for snorkeling or diving?
No. Even the 5 ATM models are not rated for diving or snorkeling. The pressure and duration of submersion in those activities exceed what a 5 ATM device can handle. You would need a 10 ATM rating, which no current Fitbit offers.
Can I wear my water-resistant Fitbit in a pool with chlorine?
Yes, but rinse it with fresh water when ready after. Chlorine can corrode the seals and internal components over time. The more often you swim in chlorinated water, the more important it is to rinse and dry your device right away.
How do I know my Fitbit's water-resistance rating?
Check the manual that came with your device or visit Fitbit's official website and search for your model number. The rating is also sometimes printed on the back of the device itself. If you cannot find it, contact Fitbit support with your model number.