Apple Watch actually has these little secrets?

Apple has always been reluctant to release detailed hardware specifications for its products, so we can only rely on professional device disassembly and chip analysis to dig into the internals. ChipWorks studied the Apple Watch as early as when Apple announced it and found that it should support Wi-Fi. Now we can finally confirm it completely.

The wireless chip used in Apple Watch is indeed the Broadcom BCM4334 as speculated, a single-chip dual-band solution that supports 802.11n Wi-Fi, Bluetooth 4.0+HS, and FM.

What is Wi-Fi for? There may be many undisclosed secrets. For example, according to Yahoo Technology reporter David Pogue, when Apple Watch is in a known Wi-Fi network, regardless of whether the paired iPhone is turned off, has no power, or is not around, Apple Watch can also complete some limited but important network functions on its own, such as asking Siri questions, sending and receiving messages, and sending and receiving graffiti and heartbeat messages to other Apple Watch users.

It can also be confirmed that it supports NFC, and the judgment method is very clever, just look at the chip packaging method and relative size!

NFC controller NXP 65V10, 7×7 ball grid package.

Front and back view of the AMS AS3923, a 5×4 ball grid package.

Invensense MP67B motion sensor.

For a more in-depth analysis, please wait until the car goes on sale on April 24. ChipWorks has already pre-ordered a Sports version and will put it under the microscope when the time comes.