Electronic devices with adjustable received sample bit width

A method of operating wireless circuitry, the method comprising:

• receiving, using a receiver, radio-frequency signals using an antenna;
• conveying, using a digital interface, in-phase quadrature-phase (I/Q) samples from the receiver to baseband circuitry;
• and
• adjusting, using one or more processors, a bit width of the I/Q samples based on wireless performance metric data characterizing radio-frequency performance of the receiver, wherein adjusting the bit width includes
• reducing the bit width in response to the wireless performance metric data being within a first range of values for a first time period.

A method of operating circuitry, the method comprising:

• receiving, using a receiver, radio-frequency signals via an antenna;
• and
• transmitting, using the receiver, digital samples of the radio-frequency signals to baseband circuitry, wherein
• the digital samples have a first bit width when the receiver exhibits a first level of radio-frequency performance, and
• the digital samples have a second bit width that is less than the first bit width when the receiver exhibits a second level of radio-frequency performance that is less than the first level of radio-frequency performance.