Example: A Cellphone.

A modern mobile phone contains eight or more radio tranceivers, counting the various cellphone standards, GPS, WiFi, near-field and Bluetooth. For the Apple iPhones, all use off-SoC mixers and some use on-SoC ADC/DAC. Another »iPhone teardown link

Cellphone physical components - bill of materials:

• Main SoC - Application Processor, Caches and DRAM
• Display (touch sensitive) + Keypad + Misc buttons
• Audio ringers and speakers, microphone(s) (noise cancelling),
• Infra-red IRDA port
• Multi-media codecs (A/V capture and replay in several formats)
• Radio Interfaces: GSM (three or four bands), BlueTooth, 802.11, GPS, Nearfield, .... plus antennas.
• Power Management: Battery Control, Processor Speed, on/off/flight modes.
• Front and Rear Cameras, Flash/Torch and ambient light sensor,
• Memory card slot,
• Physical connectors: USB, Power, Headset,
• Case, Battery and PCBs
• Java VM and Operating System.