Why are there only waterproof watches, but no fireproof watches, anti theft watches?

As long as the airtightness and pressure resistance of the watch meet the requirements, it can be waterproof, but as long as the temperature of the fire is high enough, all objects can be melted, and some objects will be deformed even if they are not melted, so there is no fireproof watch. Anti-theft watches are available.

In fact, it is rare to encounter fireproof watches, generally speaking, when we wash our hands and faces, we may be afraid of getting wet, generally speaking, there are such watches.

Fireproof watches are unrealistic in the first place, there is nothing left in the incineration of fire, and anti-theft watches are still possible now, and some high-tech anti-theft can be done.

Because the waterproof ones just need to be sealed, or things will not be invaded by water, but fire prevention is very destructive.

Waterproof watches only require the sealing of the watch, and fireproof watches require the material of the watch. Anti-theft watches are the security of watches, so none of them are a concept.

Fireproof mobile phones, need to be resistant to high temperatures, anti-theft watches and out of Oh, but need to install a specific monitoring system.

In fact, there are also fireproof and anti-theft watches, but they are generally not suitable to buy in the market, and the demand for them is too small.

I think it's general, because it's well, if it's waterproof, it's his research, it's relatively simple, and he doesn't practice, and it is possible that this type of watch will be launched in the future.

You have so many thoughts that you will go into the fire with your watch? Some people may swim with their watches, or when it rains, they can wear their watches so that they can not be afraid of waterproof.

Waterproof is simpler, but fire and theft prevention is much more difficult.

Summary. Hello, happy to answer your questions. Because it is difficult to make a mobile phone waterproof, and the mobile phone is a wearable product, the replacement of electronic components also requires that it cannot be completely waterproof.

Watches can be waterproof, why can't mobile phones.

Hello, happy to answer your questions. Because it is difficult to make a mobile phone waterproof, and the mobile phone is a wearable product, the replacement of electronic components also requires that it cannot be completely waterproof.

I hope you can give my opinion and have a great day!

What should I do if the front camera of the phone cannot be used after the lens of the mobile phone is partially flooded.

It is recommended that you deal with it as follows: 1. Please try to place your mobile phone in a dry and ventilated place and use a paper towel to blot the water stains on the surface of your mobile phone. 2. If the phone is turned on, press the power button to turn it off; If your phone is turned off, don't try to turn it on.

3. Please take out the SIM card and microSD card. 4. Take your phone to a Huawei customer service center as soon as possible to avoid unnecessary losses.

Precautions: 1. Do not move or shake the mobile phone frequently after entering the water, so as to avoid the spread of moisture inside the mobile phone. 2. Do not blow with a hair dryer or bake at high temperature after entering the water, so as to avoid the liquid being blown into the inside of the mobile phone and damaging the mobile phone at high temperature.

3. The mobile phone is composed of precision electronic components, and there is a hidden risk after water ingress, so please keep the mobile phone turned off. 4. If you don't have a backup data, there may be a risk of data loss during repair.

I hope you can give my opinion and have a great day!

The most important thing for a watch to be waterproof is the sealing ring, or O-ream, or I-ream, which is made of rubber, nylon or Teflon, which forms a waterproof seal on the glass, the rim, the case back and the joint between the jaw and the case. The degree of sealing is the waterproof level, and the common marks are: 30m, 50m, 100m, 200m, etc.

In addition, the thickness and material of the case determine whether a watch is safe to wear underwater. As a rule, watches labelled with water resistance must reach two atmospheres (2 bar). The detection method is:

Hold pressure at 2 bar for 60 seconds and the air flow should not exceed 50 micrograms.

Why isn't it labeled "completely waterproof"? According to the Code issued by the Federal Trade Commission of the United States, a seller of a watch may not mark his watch as "fully water-resistant". Even if the watch is designed for deep-sea diving, it cannot be claimed to be completely water-resistant.

In other words, there is no such thing as a watch that is absolutely water-resistant.

Precautions during the use of water-resistant watches:

Wearing a waterproof watch for swimming chooses a 100m waterproof watch, which is safer. Although the ordinary 30m waterproof meter can withstand 3 atmospheres, its detection premise is under laboratory conditions, that is, the temperature is 20-25°, and the water and the meter are stationary. When swimming, the watch and the water are relatively moving, with a certain impact, and the pressure between the water and the watch is often much greater than 3 atmospheres.

As a result, the watch is susceptible to water ingress.

The waterproof meter does not allow hot baths and saunas. In addition, according to the principle of thermal expansion and cold contraction, each component of the watch is different due to different materials, shapes and sizes, and when the temperature changes greatly, the amount of expansion and contraction deformation is different, and it is easy to produce tiny gaps, causing water to enter the watch. Occasionally, there is no water ingress in the watch, which means that the watch is waterproof, but in the long run, it will accelerate the aging of the waterproof parts of the watch and affect the normal service life of the watch.

The watch that has been flooded is still waterproof when it is tested on the waterproof machine, which is caused by improper use, and the cold and heat (such as exposure to the sun or the air-conditioned room with low temperature) cause the waterproof parts of the watch to be instantly deformed, and the water vapor enters, and the environment is normal, and the waterproof parts return to normal, and still have the waterproof function.

All watch water-resistance tests are conducted by experimental and simulated methods, which means that it is impossible to test the watch under the pressure of deep water (sea). Imported brand watches, usually in the after-sales repair and maintenance services, to do waterproof experiments, this is also the brand watch known as one of the important contents of the "comprehensive maintenance", almost no column, the equipment used is basically a pressure tank.

The pressure tank is only a part of the waterproof tester, in fact it is a sealed chamber, and there is a compressed air pump to pump air into it, usually when the compressed gas pressure reaches 2 or 3 atmospheres (atm).

(this pressure value can be adjusted), the compressed air pump will stop automatically. The specific test is as follows: the test watch is placed on a clamp inside the sealed chamber, and there is a probe on the fixture, which will touch the glass surface of the watch, and then the sealed chamber is closed, and the compressed air pump starts working.

If the watch is leaking (i.e. not waterproof) in a high-pressure gas, then the glass (or back cover) of the watch will not sag, or the pressure will first sag, but it will recover quickly, and these conditions will be tested by the probe, and then the circuit will also have an indication, and a bad red indicator will light up. If the glass of the watch can continue to sink for 90 seconds while maintaining 3 atmospheres, the watch is well sealed. The sealed compartment will automatically remove the pressure, and at the same time, there will be an OK green light to light up, indicating that the waterproof performance of the watch is qualified.

This is a quick and non-destructive waterproof test method, but the disadvantage is that it cannot detect the specific water ingress of a non-waterproof watch. There is also a waterproof test tank that uses water as the medium to press by hand, which can measure the specific part of the watch water (not tightly sealed), but it is possible that in the test, water enters the inside of the case.

Generally, watches have a certain waterproof effect. You can look at the back cover of the watch, there is the words "ATM" with the marking: ATM.

ATM: Water resistance, the water resistance rating of the watch.

30-meter water resistance, on the watch"30m"The table with the word, this is the waterproof meter, and the common expression method is 30m, 3atm, and 3bar

50-meter water resistance, on the watch"50m"The word table, that is, the 50-meter water resistance meter, is commonly noted: 50m, 5atm, 5bar.