Although the Apple Watch will not be launched until next year, there is basically no follow-up information. ChipWorks recently made a simple preliminary analysis through several internal structure diagrams officially released by Apple.
Apple has given three structural drawings, one is the overall shape sketch, the second is the overall drawing of the motherboard and chip (without any marks), and the third is the solder joint drawing after removing the chip.
Apple Watch uses an irregularly shaped motherboard, which Apple calls "S1", but it can also refer to the processor in the middle. Apple designs it independently, but the details are unknown, so the specification is not high 。
The flash memory particles should be on the right side next to it. The RF part is on the upper left corner only by the RF interface, while the power management unit is on the left side surrounded by capacitors and resistors.
The chip in the middle of the upper part is particularly attractive. Judging from the solder joints, it should be the wireless chip of Broadcom. To be exact, it may be BCM4334, a dual band chip that supports 802.11n Wi Fi, Bluetooth 4.0, and FM. It has been widely used in iPhone, iPad, and Samsung devices, and its power consumption is very low.
This means that the Apple Watch actually has Wi Fi capabilities, but it cannot directly access the Internet wirelessly and must be equipped with an iPhone. This chip may be used to communicate with the iPhone.
Apple Watch actually has Wi Fi
Core diagram of Broadcom BCM4334
via: Drive Home