Apple Watch’s ultra compact S1 chip

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We’ve already seen the Apple Watch get torn apart by iFixit, giving us an inside look at the Taptic Engine, Digital Crown, and (mostly) battery, and now ABI Research has gone a level further and opened up the custom designed S1 chip that is the brains of the Apple Watch…

As part of its Teardowns Market Research effort, ABI illustrates each component packed into the tiny, weather resistant module including WiFi, Bluetooth, and NFC radios.

The photo also reveals 512 MB of RAM sourced from Elpida, 8GB of flash storage sourced from SanDisk/Toshiba, and the integrated accelerometer/gyroscope sensor. The real brains of the S1 chip can be found in a customer Apple processor labeled APL 0778. As you can see, the S1’s main processor makes up a fraction of the already ultra compact system.

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