Most Fitbits are water-resistant, not waterproof — and the difference matters
Water-resistant means a device can handle splashes, sweat, and brief submersion. Waterproof means it can survive full immersion and pressure. Fitbit uses "water-resistant" for most models because they are built to survive daily life — showers, rain, sweat during a workout — but not to be worn while swimming or diving.
The Fitbit Flex 2, Ionic, Versa series, Sense, and Inspire models all carry a water-resistance rating of 50 meters. That means they can handle a quick dunk or a shower, but Fitbit does not recommend wearing them while swimming laps or snorkeling. The Fitbit One and original Flex are not water-resistant at all and should stay dry.
If you plan to wear your tracker in the pool, only the Fitbit Aqua (discontinued but still in use) was designed for that purpose. Current Fitbit models are not built for sustained water exposure, even though some users report wearing them while swimming without damage.
Key Takeaways
- Fitbit Flex 2, Versa, Ionic, Sense, and Inspire models are water-resistant to 50 meters, meaning they survive showers and sweat but not swimming.
- Water-resistant does not mean waterproof — 50-meter rating protects against splashes and brief dunks, not sustained submersion or pressure.
- The Fitbit One and original Flex have no water resistance and should be kept dry.
- Fitbit does not officially support wearing current trackers during swimming, even though some users do so at their own risk.
What the 50-meter water-resistance rating actually covers
A 50-meter rating means the device has been tested to withstand water pressure equivalent to 50 meters of depth — but that does not mean you should take it to 50 meters underwater. The rating is based on static pressure in a lab, not the dynamic pressure and movement of real swimming.
In practice, 50 meters covers showering, washing your hands, getting caught in rain, and sweating during exercise. It does not cover pool swimming, ocean swimming, hot tubs, or saunas. Heat and chlorine can also degrade the seals over time, even if the device survives the initial exposure.
Fitbit's warranty does not cover water damage from swimming or submersion beyond what the rating specifies. If your tracker stops working after you wear it in a pool, Fitbit will not replace it for free.
Which Fitbit models have no water resistance
The Fitbit One and the original Fitbit Flex should not be exposed to water at all. These older models lack the sealed design of newer trackers and will malfunction if they get wet. If you own one of these and want to wear a tracker during water activities, you will need to upgrade.
The Fitbit Charge and Charge HR also have limited water resistance — they can handle splashes but not submersion. Check your device manual or the Fitbit website to confirm your exact model's rating before exposing it to water.
How to protect your water-resistant Fitbit
Even though your Fitbit is water-resistant, you can extend its life by rinsing it with fresh water after exposure to chlorine, salt water, or soap. Dry it completely before charging, and avoid wearing it in hot tubs or saunas where heat can damage the seals.
If your tracker does get wet and stops responding, try removing the band and letting it air dry for 24 hours before charging again. Do not use heat to dry it. If it still does not work after drying, contact Fitbit support — they may be able to help even if water damage is not covered under warranty.
What happens if you wear a water-resistant Fitbit while swimming
Some users wear their 50-meter water-resistant Fitbits while swimming without problems. The tracker will count your movements and may log the activity, though it will not track swimming-specific metrics like lap count or stroke type the way a dedicated swim watch would.
The risk is that repeated exposure to chlorine, pressure changes, and temperature shifts can eventually compromise the seals. You might get away with it once or twice, but regular swimming will shorten the device's lifespan. If water gets inside, the battery and circuitry will corrode and the tracker will fail.
Fitbit models and their water ratings at a glance
| Model | Water Resistance | Safe For |
|---|---|---|
| Fitbit One | None | Keep dry only |
| Fitbit Flex (original) | None | Keep dry only |
| Fitbit Charge, Charge HR | Limited | Splashes and light rain |
| Fitbit Flex 2 | 50 meters | Showers, sweat, brief dunks |
| Fitbit Ionic | 50 meters | Showers, sweat, brief dunks |
| Fitbit Versa (all versions) | 50 meters | Showers, sweat, brief dunks |
| Fitbit Sense | 50 meters | Showers, sweat, brief dunks |
| Fitbit Inspire (all versions) | 50 meters | Showers, sweat, brief dunks |
| Fitbit Ace (kids) | 50 meters | Showers, sweat, brief dunks |
Frequently Asked Questions
Can I wear my Fitbit in the shower?
Yes, if your model has a 50-meter water-resistance rating. The Flex 2, Versa, Ionic, Sense, and Inspire can all handle shower water. Just rinse it with fresh water afterward if you used soap, and dry it before charging.
What if my Fitbit gets water inside it?
Stop using it when ready and let it air dry for at least 24 hours in a warm, dry place — not in direct sunlight or near heat. Do not charge it while wet. If it still does not work after drying, the internal circuitry may be damaged and the device may need replacement.
Does Fitbit warranty cover water damage?
No. Fitbit's standard warranty does not cover damage from water exposure, even if you were using the device within its rated water-resistance limits. Damage from swimming or submersion is considered user error and is not covered.
Can I wear my Fitbit while snorkeling?
Fitbit does not recommend it. While a 50-meter rating sounds like it should work, snorkeling involves pressure changes and sustained submersion that can push water past the seals. The risk of damage is high, and warranty will not cover it.
Is there a Fitbit made for swimming?
The Fitbit Aqua was designed for water sports, but it has been discontinued. Current Fitbit models are not built for swimming. If you need a tracker for pool workouts, you may want to look at dedicated swim watches from other brands instead.