nRF51422 is the first solution supports both Bluetooth and ANT+, different from pure Bluetooth Low Energy BLE solution, nRF51822 released earlier. The edge cutting technology enable nRF51422 suporting multiprotocol concurrency capable for both Bluetooth Low Energy and ANT+. At the same time Nordic released SDK S310 for nRF51422 which is a combined peripheral BLE and ANT+ protocol stack that supports concurrent operation and all ANT+ features.
When Nordic moved to nRF52, started from nRF52832, the game changed. Even nF52832 still supports ANT+, the technology support such as SDK releasing or developers' forums, has moved to direct supported by ANT+ Wireless (formerly Dynastream Innovations). Since then, Raytac suggest developers who is interested in ANT+ product still able to select the modules based on core specification and form factor, but access the firmware development support from ANT+ directly. Developers who are interested to know more about ANT+ is encouraged visit ANT+ FAQ support page first for more information about membership, development, resource and certification.
All Nordic nRF52 solutions supports ANT+ feature, developers may refer to below Raytac module map and find what the protocol supports by the symbol stated besides the Nordic solution indication.