latest Android KitKat Nexus 5 TearDown: 11ac w/ PA, LNA BCM4339, BCM20793M NFC controller for Google Wallet
The Nexus 5 is the first phone to ship with the latest version of Android's OS, KitKat.
Broadcom BCM4339 5G Wi-Fi combo chip with integrated power and low-noise amplifiers (the updated version of the BCM4335).
NFC is the tech behind Google Wallet—one of the Nexus devices' most loved features and one often blocked by carriers. Last month, the rumor mill speculated that the Nexus 5 would feature a Broadcom NFC controller that could eliminate carriers' ability to wallet-block customers.
Google kicks out carrier-based blocking of Google Wallet – freedom!
Lo and behold: the Broadcom BCM20793M NFC controller.