External sensors such as speed, heart, and cadence sensors can be connected to the ROX 4.0 and ROX 11.1 EVO, so those who want even more data and even greater value precision can keep an eye on all of them if they wish. ANT or BLE is used for this, ensuring maximum compatibility with all sensors.Key Features• ANT Support• BLE Support• ROX 4.0 / ROX 11.1 EVO