How to Read Waterproof Ratings: The Step Everyone Skips
"Waterproof" on a listing frequently means splash-proof. Most people discover the difference in a full bathtub, which is the worst possible moment.
This guide covers what waterproof ratings actually certify, which numbers to look for, and where water gets in regardless of the rating. You'll also get the cases where the rating doesn't matter at all.
The Short Answer
Look for an IPX code, not the word waterproof. IPX7 means immersion to 1 metre for 30 minutes, which covers a bath and a careful rinse. IPX6 means strong jets only, so it survives a shower and fails in a full tub. If a listing says waterproof with no code, assume splash resistance and keep the charging port dry. That one assumption prevents most of the dead units people report.
What the Rating Actually Covers
A waterproof rating applies to the sealed body. It does not apply to everything attached to it.
Charging ports, seams, and removable caps are the weak points. On many products the motor housing is sealed while the port is protected by a silicone flap, and that flap is the part that fails.
So the practical rule: if you're taking it into water, check the port first. Press the flap flat with a finger before it goes anywhere near a tap.
IPX Numbers, Translated
The code is short but specific. Here's the useful part.
- IPX4: splashes from any direction. Fine for a quick rinse under a tap, nothing more.
- IPX6: strong water jets. Survives the shower, not the bathtub.
- IPX7: immersion to 1 metre for 30 minutes. This is the one to look for.
- IPX8: continuous immersion beyond 1 metre, with the depth set by the manufacturer.
Note what's missing. There's no rating for hot water, soapy water, or bath salts, and those are what most people actually use.
Where Water Gets In
Three places, and none of them are the obvious one.
First, the charging contacts. Even on IPX7 units, charging with a damp port corrodes the pins. Dry it for 10 minutes and then wait another 5 before you plug in.
Second, the seam between the motor body and the silicone sleeve. Repeated flexing opens it slightly over months. That's why an older unit can fail a bath it passed a year earlier.
Third, the button. Membrane buttons hold up; mechanical ones with a travel gap eventually don't. Picture this: you're in the bath, you press the button, and water pushes in behind it.
Bath, Shower, and Pool
Each one is a different test.
A shower is gentle and forgiving. An IPX6 unit handles it easily, and even an IPX4 one usually survives if you're not aiming the head at it directly.
A bath is harder. Immersion means pressure on every seam, plus heat, plus whatever you poured in. Bath oils and salts leave residue on the contacts, so rinse with plain water afterwards and dry it fully.
A pool is the harsh case. Chlorine is rough on silicone over time. Rinse immediately after work on the way home, not three days later.
Drying After Water Exposure
The bath isn't the risky part. The hour afterwards is.
Rinse it with plain water, wipe the surface, and then leave it on a towel for 10 minutes. Don't seal it into a pouch straight away, and don't put it on a radiator, because direct heat warps a silicone sleeve over time.
Imagine doing this before bed while the bathroom is still steamy. The air is already damp, so 10 minutes becomes 20. Plan for that and you'll stop rushing the one step that matters.
Then press the port flap flat and check for droplets around the seam. A single drop in the wrong place corrodes a contact within a week.
Worth knowing: hot water ages seals faster than cold water does, so a daily hot bath shortens a unit's life more than a weekly one.
When Waterproof Doesn't Matter
If you clean your toy at the sink rather than in the bath, an IPX4 rating is plenty, and paying attention to higher codes is wasted effort. It's also worth knowing that no rating makes a porous material safe to soak; water trapped inside a porous body doesn't come out. And if you're buying purely for bath use, look for a shape that floats or one with a suction base, because the rating won't tell you how it behaves when it slips out of your hand.
And if you only ever clean at the sink, skip the immersion codes altogether. Ignoring them costs you nothing, and reading into them costs you an evening.
What to Look for Before the Bath
One pouch, one set of care rules. That's easier than tracking three.
- Self-Love Ritual Bundle: three pieces in a single pouch (HOPSTAR, GODLIKE, and Velvet Touch lubricant) with sealed bodies built for a full rinse under running water; dry the ports for 10 minutes before charging and they'll last for years.
- Browse the Customer Favorites collection to compare care requirements across pieces.
- Related reading: how to read decibel ratings on toys
- Related reading: what waterproof ratings mean for you
- Up next: how to read material labels
Sources
- International Electrotechnical Commission — publishes the IP code standard defining ingress protection levels, including IPX7 immersion testing at 1 metre for 30 minutes.
- Platinum-cured silicone manufacturers — note that chlorinated and salted water should be rinsed off promptly to avoid residue on seals.
- Consumer Product Safety Commission — advises against charging any device with a damp or corroded port.
This article is general education, not medical advice. Stop using any device that shows moisture behind a seal or corrosion on its contacts.
