There is not a Bluetooth component that ships with Delphi XE5 Firemonkey but some Delphi developers have created some interface units which give you access to Bluetooth devices on Android. There are two different demos and multiple different blog posts with information on the Bluetooth capability. The original page with the Bluetooth information is available here. It contains a sample project and a demo APK in addition to a full explanation for how the Bluetooth access library was created. The Android documentation for BluetoothAdapter is available here. David I from Embarcadero has a blog post with a roundup of the Bluetooth links here. There is a newer post from Sarina D. at Embarcadero available on the new AppMethod site which links to a new sample project which polishes up the code from the previous demos.
Head over and check out the full blog post about Bluetooth in Firemonkey by Sarina here. You can download it directly here.