Are Smart Rings Waterproof Enough for UK Swimming Pools?

A trip to the local pool raises a genuinely reasonable question: can the ring stay on? The answer depends on what "waterproof" actually means on a spec sheet, because that word gets used loosely, and the difference between "handles a splash" and "handles forty lengths of front crawl and chlorinated water" is significant.

This guide works through what water resistance ratings actually cover, what UK pool water specifically does to electronics and metal over time, and the practical steps that keep a smart ring in good condition if you do wear it swimming. We are covering general good practice here rather than certifying any particular model — always check the specific water resistance rating listed on the product page for the ring you own or are considering, since this varies across the range.

What Water Resistance Ratings Actually Mean

Water resistance on wearable electronics is usually expressed as an IP rating — Ingress Protection — followed by two numbers, such as IP68. The first number describes protection against solid particles like dust, the second describes protection against water.

A higher second number generally indicates greater water resistance, but the practical meaning varies by testing standard, and manufacturers test under specific laboratory conditions that do not always match real-world use. Some products are instead rated against a different swimming-specific standard, such as ATM (atmosphere) ratings used in traditional watchmaking, where a higher ATM number broadly corresponds to a greater tested depth.

The important point for a shopper: a rating that covers rain, hand-washing and light splashing is not automatically the same as a rating that covers sustained submersion during swimming. Always check the specific rating stated on the product page for the model you are considering, since this is the only reliable source for what that particular ring or watch is actually tested to withstand.

What UK Pool Water Does That Rain Doesn't

Even a device with a genuinely strong water resistance rating faces a slightly different challenge in a chlorinated pool compared with rain or a shower.

Chlorine and other pool chemicals are more chemically aggressive than plain water, and over repeated exposure they can degrade seals, gaskets and certain metal finishes faster than fresh water would.

Sustained pressure and movement during swimming puts more continuous stress on seals than an occasional splash, since the device is submerged for extended periods rather than briefly wet.

Water temperature in UK public pools is typically warmer than rainfall, and repeated heating and cooling cycles can, over the long term, be harder on seals than consistently cool exposure.

Salt water, if you are swimming somewhere other than a chlorinated pool, carries its own additional corrosive risk to metal contacts and charging pins.

None of this means swimming with a rated device is unsafe. It means that even a well-rated ring benefits from the aftercare steps covered further down, and that a rating intended for everyday splash resistance should not be assumed to cover serious swimming use.

Checking Your Specific Model Before You Swim With It

Before taking any smart ring or watch into a pool:

Find the water resistance rating on the specific product page, not a general assumption about the brand or category. Ratings can differ between models even within the same range.
Look for any explicit guidance about swimming, since some manufacturers state clearly whether swimming and pool use is supported, and others are more conservative and recommend removing the device for swimming even if it carries water resistance for everyday use.
Check the charging contacts specifically. Even where the main body of a ring or watch is well sealed, charging contacts are sometimes a weaker point, and manufacturer guidance often specifically calls out drying these thoroughly before charging.
When in doubt, treat swimming as more demanding than showering, and be more cautious with a device rated primarily for splash and shower resistance.

If you cannot find a clear statement either way for your specific model, it is reasonable to contact the retailer or manufacturer directly to check before relying on the ring for regular pool sessions.

Sensor Accuracy in Water: What to Expect

Even where a device can physically survive swimming, it is worth setting realistic expectations about the data it produces during a swim.

Optical heart rate sensors, which most smart rings and many smart watches use, rely on light passing through skin, and water — particularly moving water with bubbles and turbulence — can interfere with this more than it does on dry land. Step-counting and activity algorithms are typically calibrated around walking and running motion, not swimming strokes, so activity summaries during a swim session may not reflect the exercise accurately.

This is a general characteristic of consumer wearables rather than a fault, and it is worth treating any data collected during a swim as a rough indicator of general activity rather than a precise readout. None of this is medical information and should not be treated as a measurement of health status — it is a general wellness indicator only.

Looking After Your Ring or Watch After Swimming

Whether or not your specific model is explicitly rated for swimming, a few habits reduce wear from pool use over time.

Rinse with fresh water after a chlorinated swim, particularly around any seams, the sensor window, and the charging contacts. This helps remove chlorine residue before it has a chance to sit against the metal or seals.
Dry thoroughly before charging. Pat dry with a soft cloth, and let the device air dry fully before placing it on its charging dock. Charging a wet device risks poor contact and, in cases of significant water ingress, potential damage.
Check the charging contacts for residue after a few swims. A slight white or chalky build-up from pool water is common and can usually be removed gently with a dry cloth or soft brush.
Give it a rest day occasionally if you swim very frequently, allowing seals and contacts a chance to dry out fully rather than moving straight from pool to charger to pool again.
Avoid hot showers immediately after cold pool water where possible, since rapid temperature changes are generally harder on seals than a more gradual change.

When It Makes Sense to Remove It Instead

There are situations where taking the ring or watch off before swimming is simply the more sensible choice, regardless of its rating:

Diving or jumping into water, where the impact and depth exceed typical swimming conditions.
Open water or sea swimming, where salt water, sand and unpredictable conditions add extra wear.
Long, frequent swimming sessions, such as daily lane swimming, where cumulative exposure is significantly higher than occasional recreational swimming.
Any model where the product page does not explicitly confirm swimming suitability.

If you are unsure, removing the device and drying your hand or wrist before putting it back on afterwards is the lowest-risk option, and it costs you nothing beyond the inconvenience.

Hot Tubs, Saunas and Other Water-Adjacent Situations

Swimming pools are not the only water-related situation worth thinking about, and some are more demanding on a device than others.

Hot tubs and spas combine warm water, chemicals similar to pool water, and often higher mineral content, all of which can be harder on seals than a standard swimming pool over repeated exposure. If you regularly use a hot tub, treating your device the same way you would after a swim — a rinse and thorough drying afterwards — is sensible.

Saunas and steam rooms are a different concern entirely, since the issue is less about water ingress and more about sustained heat, which can affect battery health and, in some cases, adhesives or seals not designed for prolonged high temperatures. It is generally worth removing a wearable before a sauna session regardless of its water resistance rating, since water resistance and heat resistance are not the same thing.

Sea swimming introduces salt and sand alongside the water itself, both of which are more abrasive and corrosive than fresh or chlorinated pool water. A more thorough fresh-water rinse afterwards is worth the extra minute if you swim in the sea regularly.

General Water Safety Habits Worth Building

A few broader habits help regardless of which specific water activity you are doing:

Check the rating before you travel, not after you arrive somewhere with a pool, so you are not making a decision under time pressure.
Keep a small soft cloth in your swim bag specifically for drying the device promptly after getting out of the water, rather than waiting until you are home.
Avoid extreme temperature changes, such as jumping between a cold pool and a hot shower repeatedly with the device still on, since rapid temperature swings are generally harder on seals than a single steady exposure.
Note any change in behaviour after swimming, such as reduced touch sensitivity or unusual readings, since this can be an early sign that moisture has affected the device and is worth investigating before repeated further exposure.

Choosing a Model With Swimming in Mind

If regular pool use is a priority for you, it is worth checking water resistance ratings specifically as part of your buying decision, rather than assuming all models in a range are equally suited. The COLMI V76 GPS Smart Watch and the COLMI R11 Smart Ring both list their specific water resistance details on their product pages — check the stated rating and any swimming-specific guidance there before making a decision, since exact specifications can vary between models and may be updated over time.

A Note on Public Pool Etiquette and Practicality

Beyond the technical question of whether a device can survive the water, there is a practical side worth a brief mention for anyone swimming regularly at a UK public pool. Lane swimming sessions often move at a reasonable pace with limited opportunity to stop and check a device mid-length, so it is worth deciding before you get in the water whether you actually need real-time data during the swim itself, or whether reviewing your activity summary afterwards is sufficient. Many swimmers find the latter perfectly adequate, which somewhat reduces the pressure around in-water accuracy discussed earlier in this guide, and lets you focus on your swim rather than checking a display between lengths.

Frequently Asked Questions

Can I wear my smart ring in the shower even if I don't swim?

Many smart rings are designed to handle everyday exposure like handwashing and showering, but you should check the specific rating on your model's product page rather than assuming, since this varies between products.

Does a high water resistance rating mean I can dive with my ring?

Not necessarily. Standard water resistance ratings for consumer wearables are generally intended for everyday exposure and swimming at typical depths, not diving or high-impact water entry. Check your specific product's stated guidance before diving with it.

Will chlorine damage my smart ring over time?

Repeated exposure to chlorinated water can be more demanding on seals and metal finishes than fresh water, which is why rinsing and drying after a swim is worth doing as routine care, even for a well-rated device.

Should I take my ring off to charge it if it's still slightly damp from swimming?

Yes. Drying thoroughly before charging is good practice for any water-exposed wearable, since charging a wet device risks poor contact and, in some cases, damage to the charging port over time.

Where can I find the exact water resistance rating for my model?

The specific product page on the retailer's website is the most reliable source, since ratings can differ between models even within the same brand and range.

A Sensible Approach to Swimming With Wearables

Water resistance on a smart ring or watch is a genuine feature, but it is worth treating the specific rating on your model's product page as the source of truth rather than a general assumption about the category. Chlorinated pool water is more demanding than rain, and a few minutes of rinsing and drying after each swim goes a long way towards protecting the device over its lifetime.

If pool use is a regular part of your routine, check the stated water resistance and any swimming-specific guidance before buying, browse the full COLMI range on the store, and get in touch if you are unsure which model best suits how you plan to use it.