What's the difference between the American version of Apple and the Bank of China?

What's the difference between the American version of Apple and the Bank of China?

The US version of Apple is different from the countries sold by Bank of China, including locked and unlocked versions, 5G frequency band and card insertion function.

1, different sales countries

US version of iPhone: refers to Apple's retail stores in the United States, official website, and Apple mobile phones launched in cooperation with relevant network operators.

IPhone Bank of China: The iphones sold by Chinese mainland retail stores, operator official website and cooperative business halls are all versions of Bank of China.

Both kinds of mobile phones are products supplied and sold through official national channels, and the prices are basically the same. They can enjoy Apple's one-year warranty service by providing invoices.

2. With and without locking plates

In addition to the different countries of sale, the iPhone is divided into a locked version and an unlocked version. The locked version can only use the SIM card of the operator that the iPhone signed in that country, and the unlocked version has no restrictions.

The American version of iPhone is a contract machine for operators, so most of them have network locks. The National Bank version of iPhone is a lock-free version, and you can use the SIM card directly without cracking it. There is only one question about whether you can install third-party software for free, and there is not much problem with the basic use of iPhone.

3. Difference of 5G frequency band

The American version of 5G is millimeter wave, with the fastest transmission speed, but short transmission distance and poor penetration, with frequencies of 28GHZ and 39GHZ；;

The 5G version of the Bank of China is centimeter wave, which has fast transmission speed, longer transmission distance, stronger penetration than millimeter wave, and the frequency is within 5GHZ.

4. Card insertion function

The US version of iPhone 13 and previous models are all single cards, and dual cards and dual standby are not supported.

The iPhoneXR to iPhone 13 series models of the Bank of China are all dual cards. IPhone 13 series models adopt double card slots on the front and back, and a SIM card can be placed on both sides of the slot.