If you want to know what's inside your new phone and tablet but don't want to tear it apart yourself, the people at iFixit usually have your hookup. Today they've torn apart Google and LG's new Nexus 5, which was announced last week and is currently shipping to people who ordered during the first couple hours of availability (as of this writing, you'll have to wait between two and four weeks to get one depending on the model you're trying to order).
iFixit didn't discover much that isn't already on the spec sheet, but its teardowns continue to be useful for telling us exactly what components headline new smartphones and tablets. Broadcom is a big player in the Nexus 5, supplying both the BCM4339 Wi-Fi chip (which supplies 802.11ac connectivity, Bluetooth 4.0, and an FM transmitter) and a BCM20793M NFC controller. This particular NFC controller is noteworthy because it reportedly enables Google Wallet in a way that carriers cannot block. To date, the matrix of Android phones that do and don't support Google Wallet has been a bit confusing, so hopefully more OEMs start going this route soon.
Like the Nexus 4, the Nexus 5 also includes LTE-capable modems and transceivers. Unlike the Nexus 4, the Nexus 5 actually has the hardware it needs to use them. The Qualcomm WTR1605L transceiver chip is the same one Apple uses in the iPhone 5C and 5S, and the Snapdragon 800 SoC (model number MSM8974) has an integrated LTE modem that supports LTE speeds of up to 150Mbps given carrier support. Layered on top of the SoC is 2GB of LPDDR3 RAM, an upgrade from the DDR2 RAM used in the Nexus 4.