What you need to know about waterproof phones
What you need to know to keep your mobile running even if it does get overly moist.
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Taking your smartphone with you everywhere is kind of the point; they’re pocket-sized computers that keep you informed and in touch. The problem with having a pocket-sized computer everywhere is that sometimes it rains. Sometimes you drop your smartphone in the bath, or the pool, or (gasp) in the toilet. We won’t judge, but the reality is that electronics and water don’t mix well.
What if I've just dropped my phone into water?
If you're facing that particular stressful scenario, there are a few key things you can try to coax your phone back to life, but there are very few guarantees because water and electronics are not friends.
The first step is to power down your phone if it's not already off. If you have a phone with a removable battery, pull it out as fast as you can to be sure.
The next step is to allow time for as much water to exit the phone body as possible before trying to use it again.
There are commercially available products that claim to grab as much water as possible from soaked phones to aid in recovery, but their efficacy (as well as that of solutions such as using rice) are variable, with few guarantees in place.
Ouch! That was expensive and stressful! What can I do in the future about my phone and water?
Not dropping your phone in water is a good start. A few light drops of rain shouldn’t be a problem, but an outright soaking, and especially immersion, is very problematic.
Or at least it was until phones with proper water resistance became more widely available.
It's a generally assumed feature of premium handsets these days, for a start.
There are some premium phones that don't include water resistance, and it's a feature we'll always call out as missing within that premium price space. In the mid-range and budget spaces it's far less common, with most phones that feature it selling specifically on their toughness, such as the Nokia XR20.
One way around this problem if water resistance is something you crave is to look to buy slightly older flagship phones.
If your budget can't stretch to the Galaxy S22 Ultra, for example, you could consider 2021's Samsung flagship, the Galaxy S21 Ultra 5G.
It's cheaper now because it's been replaced in the flagship heirarchy -- but it has the exact same high degree of water resistance as newer flagships.
If you sit more on the Apple side of the fence, the same is true of older Apple phones. So the iPhone 11 and iPhone 12 can be had for less than an iPhone 13, but with the same IP water resistance rating.
We update our data regularly, but information can change between updates. Confirm details with the provider you're interested in before making a decision.
What is an IP rating?
IP ratings (or fully expanded, ingress protection ratings) quantify to what extent electrical devices are enclosed against material ingress, specifically intrusion for the first number and water for the second.
How water ingress is tested for its IP rating breaks down as follows:
|Level||Protected against||Effective against||Details|
|1||Dripping water||Dripping water (vertically falling drops) shall have no harmful effect.||Test duration: 10 minutes|
Water equivalent to 1mm rainfall per minute
|2||Dripping water when tilted up to 15°||Vertically dripping water shall have no harmful effect when the enclosure is tilted at an angle up to 15° from its normal position.||Test duration: 10 minutes|
Water equivalent to 3mm rainfall per minute
|3||Spraying water||Water falling as a spray at any angle up to 60° from the vertical shall have no harmful effect.||Test duration: 5 minutes|
Water volume: 0.7 litres per minute
|4||Splashing of water||Water splashing against the enclosure from any direction shall have no harmful effect.||Test duration: 5 minutes|
Water volume: 10 litres per minute
|5||Water jets||Water projected by a nozzle (6.3mm) against enclosure from any direction shall have no harmful effects.||Test duration: at least 3 minutes|
Water volume: 12.5 litres per minute
Pressure: 30kPa at distance of 3m
|6||Powerful water jets||Water projected in powerful jets (12.5mm nozzle) against the enclosure from any direction shall have no harmful effects.||Test duration: at least 3 minutes|
Water volume: 100 litres per minute
Pressure: 100kPa at distance of 3m
|6K||Powerful water jets with increased pressure||Water projected in powerful jets (6.3mm nozzle) against the enclosure from any direction, under elevated pressure, shall have no harmful effects.||Test duration: at least 3 minutes|
Water volume: 75 litres per minute
Pressure: 1,000kPa at distance of 3m
|7||Immersion up to 1m||Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1m of submersion).||Test duration: 30 minutes|
Tested with the lowest point of the enclosure 1,000mm below the surface of the water, or the highest point 150mm below the surface, whichever is deeper.
|8||Immersion beyond 1m||The equipment is suitable for continuous immersion in water under conditions which shall be specified by the manufacturer. However, with certain types of equipment, it can mean that water can enter but only in such a manner that it produces no harmful effects.||Test duration: continuous immersion in water|
Depth specified by manufacturer, generally up to 3m
|9K||Powerful high temperature water jets||Protected against close-range high pressure, high temperature spray downs.||Test duration: -|
Water volume: 14–16 litres per minute
Pressure: [8,000–10,000kPa / 80–100 Bar] at distance of 0.1–0.15m
Water temperature: 80 °C
So using the Apple iPhone 13 as an example, it is rated as IP68. That 6 is its solid object rating (in this case, 6 meaning that it is dust tight) and its rating of 8 in the second IP column means that it can survive continuous immersion in water.
Understanding IP limitations
Many folk presume that once they’ve got a "waterproof" phone they can do what they like with it, whether it’s a bit of bathtime Twitter or taking your phone for a quick surf.
That can be a fatal error for one simple reason: IP ratings are based on immersion in clean water in laboratory conditions.
They don't cover hot water, or soap, or chlorine, or salt water, or anything else you might find polluting your water supply.
The addition of those elements can entirely void any waterproofing measures on a given device, and if they’re detected as having been present if you make a warranty claim on a device that’s failed while immersed, the vendor may be able to knock back your warranty claim.
What about waterproofing treatments?
There are a number of treatments available that claim to offer waterproofing, but we’d suggest treading very carefully where they’re concerned. Most will simply add a layer of water resistance to a phone rather than full-on waterproofing, and if anything goes wrong with the treatment you may find yourself in the difficult position where the manufacturer of the treatment won’t or can’t offer warranty support and neither does the vendor due to the treatment affecting internal components in some unknown way.
This could be the case even if you hit a problem that’s not related to immersion in water depending on how your phone reacts to the coating.
What about waterproof phone cases?
There are a number of available cases for popular models – predominantly iPhones or devices in the Samsung Galaxy family – that offer both water and drop resistance features. These typically involve heavily sealing your phone within the confines of a rigid case that locks down tight around every possible entry point for water.
They’re a good match if you know you’re going to regularly have your phone in harsh environments including water-heavy places, although again their warranties will only cover you for the cost of the case in the event of a failure, rather than the whole phone itself in most cases.
Most of these cases also make it harder to use some features such as 3.5mm headphone jacks or fingerprint sensors depending on the way that the case has been constructed.
If you're looking for a good water-resistant phone, here are plans for some of the most popular water-resistant models.
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