A speed and/or cadence sensor is a device that transmits speed and cadence. Some sensors only transmit speed; some sensors only transmit cadence, while a third type does both. With Onelap, capturing speed and cadence is more important to get you up and running. Devices can be connected via Bluetooth or ANT+. Supported Bluetooth devices: speed sensors: S3lite, S3+, IGPSPORT, and XOSSC; cadence sensors: S3lite, S3+, BLACK BIRD CAD, and XOSSC. We are not sure whether the devices of other brands can be connected successfully. You can have a try, but the connection results are subject to the actual connections. ANT+: This is supported by Onelap by default, and the connection results are subject to the actual effect.