Apple's introduction of the MagSafe feature for the iPhone 12 may trigger problems with certain medical devices, including pacemakers, according to a medical study published in the heart research journal Heart Rhythm.
That is, the strength of the magnetic field (not the number of magnets) carried by an iPhone 12-series smartphone, i.e., a MagSafe-equipped phone placed next to a Medtronic pacemaker, could potentially lead to malfunctions in the operation of the medical device. Despite Apple's claim in its official support document that it "does not pose any risk to medical devices," if this medical study is true, the strength of the magnetic field generated by MagSafe is more than one can imagine.
Why would Apple use a MagSafe accessory when it knows that strong magnetic fields can be harmful?
First, let's understand what MagSafe is, which is actually a magnetic connection technology from Apple. Its interface has a magnetic device, in the external force under the action of their own adsorption or fall off, this kind of accessories through the magnetic way adsorption in the back of the phone, so as to complete the phone to the identification of accessories, wireless charging and other functions. For example, cell phone cases, leather card cases, wireless chargers and so on.
In fact, the iPhone12 listed accessories Magsafe, previously on the MacBook had appeared in Magsafe's magnetic charging interface, this time directly in the iPhone12 accessories, indicating that this technology is more favored by consumers or Apple pleased with the innovative work.
The question is, How much electromagnetic radiation does it cause to human health?
Internationally, electromagnetic radiation has been listed by the WHO as the fourth largest source of pollution after water, atmosphere and noise. Long-term excessive exposure to electromagnetic radiation can be harmful to the human body's reproductive, neurological and immune functions. It can also easily induce skin disease diabetes and cardiovascular disease. And according to the provisions of this country, Switzerland, people living in a 2 milligauss environment is no problem, our requirements for magnetic field strength is not more than 100 microtesla.
In the absence of wires, TVs, cell phones, and other sources of artificial radiation, nature's normal magnetic field strength is 0.1-1 milligauss. Gauss, abbreviated as high (Gs, G), is a non-internationally used unit of magnetic induction strength or magnetic flux, named in honor of the German physicist and mathematician Gauss. Tesla is the unit of magnetic induction strength, which is the number of magnetic channel lines of force passing through a unit area perpendicular to the direction of the magnetic lines of force. It is also called the density of the magnetic lines of force, or flux density, and is expressed as B in Tesla (T).
Their relationship is: 1 tesla = 10,000 gauss.
And there is no evidence that low-intensity electromagnetic radiation accumulates over time and affects the human body.
Apple's Magsafe, which was introduced with the iPhone 12 this time, is it necessary for consumers to buy it?
First of all, we have to be clear that the Magsafe launched by Apple is essentially a cell phone accessory, and whether or not to purchase depends entirely on the needs of the individual. Apple does not state that it must be purchased, if you have no need for the official magnetic charger, phone case, leather card holder and other experiences, there is no need to purchase these accessories, on the contrary, if you are very interested in the magnetic wireless charging, you can buy Magsafe wireless charger; you can also buy Magsafe leather card holder and so on. Therefore, Magsafe is not a must-have accessory, and whether you need it or not depends entirely on your personal needs.
So, although it is said that Magsafe will produce relatively strong electromagnetic radiation, but there is no evidence that it is harmful to human health, so whether you need Magsafe, it really depends on personal preference.