Wireless Speed Wireless Cadence Heart Rate Altitude GPS White Bicycle Computers
Wireless Speed allows a sensor to transmit the bicycles speed without a cable to the computer.
Wireless Cadence allows a sensor to transmit the bicycles cadence (also known as RPM) without a cable to the computer.
Heart Rate Monitoring allows a sensor, often a chest strap, to transmit your heart rate to your computer. Heart rates monitors are typically wireless.
Some computers come with built-in altimeters, which will display the current altitude. GPS enabled computers can often do this more accurately.
GPS, or Global Positioning System, is a satellite based system that provides accurate location and altitude information.