Comparing ANT+ and Bluetooth Powertap speed data

Continuing the comparison between Bluetooth data using the new CycleBike Smart app and ANT+ data using CycleBike+. The first chart shows, once again the good agreement between these two apps and interfaces for the power data from a Powertap G3 hub using their new dual power-cap ANT+/Bluetooth interface. The second chart shows a comparison between the speed reading from the Powertap G3 hub. Again the agreement is nearly perfect.

In the third chart I compare speed data between the Powertap G3 hub and a Biologic speed & cadence sensor (actually an Echowell BTR 099BBF Bluetooth speed & cadence sensor). The Powertap G3 speed data was recorded with ANT+ interface using CycleBike+ and the speed & cadence sensor data was recorded at the same time using CycleBike Smart. The agreement in speed data between the two sensors is very good.

Comparison of Powertap G3 power data for Bluetooth and ANT+ interfaces

Comparison of Powertap G3 power data for Bluetooth and ANT+ interfaces

Comparison of Powertap G3 speed data for Bluetooth and ANT+ interfaces

Comparison of Powertap G3 speed data for Bluetooth and ANT+ interfaces

Comparison of Powertap G3 ANT+ speed data and Bluetooth speed data from a Biologic speed-cadence sensor

Comparison of Powertap G3 ANT+ speed data and Bluetooth speed data from a Biologic speed-cadence sensor