Not too complicated, right? Unfortunately it's not all cut and dried. Devices aren't required to pass every test leading up to the highest rating they achieve, although many companies do test them at varies levels. In some cases, however, a phone rated with IP67 may not have been tested against dust protection levels 1 through 5, or water protection levels 1 through 6. For example, since the iPhone 8 doesn't include the IPX5 or IPX6 rating for withstanding water coming from a jet, you shouldn't take it in the shower or run it under the sink, unless Apple specifically states otherwise, which it didn't. In fact, the company has said that liquid damage isn't covered under the phone's standard warranty.
The Sony Xperia XZ, on iphone 6 qi case the other hand, is certified with an IP65 and IP68 rating, which means it is protected from dust and against low-pressure water jets, such as a faucet, when all ports are closed, The company also specifies that the Z5 can be submerged in 1.5 meters (4.9 feet) of fresh water for up to 30 mins, If anyone ever tells you that a watch is waterproof, it's a lie, No watch is truly waterproof, and in fact the International Organization for Standardization and Federal Trade Commission prohibit watches from being labeled as being "waterproof." While a watch may be able to withstand a certain degree of water exposure, there is always a limit to how much water pressure it can handle before it begins to leak, The term "waterproof" implies that a device will remain unscathed under even the most difficult of circumstances..
To help regulate and explain water resistance in watches, the ISO has set standards that have been adopted by many traditional watchmakers. Most smartwatches and activity trackers, however, don't actually adhere to these standards and therefore aren't ISO-certified. Consumer electronics tend to follow the IP code, although some companies, such as Garmin, Pebble and Polar, independently test their products to determine how much pressure they can withstand. Pressure tests are measured in ATMs, which stands for atmospheres, and then converted to water depth to make the measurements easier to understand. Each ATM is equivalent to 10 meters (33 feet) of static water pressure. Below you will find a chart that outlines that basic water-resistance levels.
Unfortunately, because there is no universal testing method, real-world usage is different for every device, For example, while the Garmin Forerunner 735XT (£225 at Amazon.co.uk) has a water resistance rating of 5 ATM, Garmin states that the watch can be worn both in the shower and while swimming, Fitbit, on the other hand, recommends Surge users to remove the device before swimming, despite being rated 5 ATM, It should also be noted that even though 3 ATM is rated for a certain depth, that depth is measured in static pressure, Water pressure can change quickly, iphone 6 qi case such as when you move your arm to begin swimming, While you may only be in 10 feet of water, the pressure created from your arm movement could be equal to that of a couple of ATMs..
As Garmin explains on its website, "Even if a device is above a depth it's rated for, it might still suffer water ingression if it is subjected to an activity that creates pressure on it that exceeds that depth rating."As I said earlier, it's not all cut-and-dry. You should check the device's website and see what the company recommends before taking a smartwatch or fitness tracker in the shower or the pool. Editors' note, Sept. 13, 2017: This article was originally published in April 2015. It has since been updated to include information on new devices.
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