Here's why wireless charging (Qi) for the iPhone and the Apple Watch aren't universal:
1. Different charging techniques: The iPhone uses Qi (pronounced " chee") Wireless charging technology, while the Apple Watch uses MagSafe charging technology. The two technologies use different working principles and charging methods.
2. Need for magnetic connection: The back of the Apple Watch is equipped with a magnetic disc for magnetic connection to the MagSafe charger. This magnetic alignment charging method ensures a stable connection and efficient charging between the charger and the Apple Watch.
3. Specific design requirements: Apple Watch chargers need to meet specific design requirements to ensure proper magnetic alignment and charging effect. They often include special magnetic construction and shape to suit the charging needs of the Apple Watch.
In theory, the Apple Watch charger can charge the phone, but in fact, because the power is too small, it is not recommended to use.
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Apple mobile phone is not recommended to use wireless charging, because the power loss of wireless charging is too large, and the phone is easy to heat, which is unfavorable to the built-in battery, easy to cause the early failure of the battery, in order to make the battery use for a period of time, or do not use wireless charging to ensure that the battery has enough life
Wireless charging on the iPhone is different from charging on the Apple Watch. The iPhone uses Qi wireless charging technology, while the Apple Watch uses magnetic charging technology. The two technologies are incompatible and therefore not universal.
Qi wireless charging technology is a standardized technology that is supported by many phones and accessories. The magnetic charging technology is a patented technology developed by Apple itself, and only Apple products support it.
Apple did not choose to use Qi wireless charging technology to charge the Apple Watch, probably because the magnetic charging technology is more convenient and fast. Users only need to hold the Apple Watch close to the magnet on the charging dock to automatically adsorb and charge, rather than pointing it at a fixed position on the charger.
Because these two are different devices, followed by the voltage and all aspects are not the same, so there is still a difference, is not universal.