KW41Z support BLE and IEEE 802.15.4 , MKW41Z_ConnSw_1. 0.2 wireless sample Divided into Bluetooth, IEEE 802.15.4, SMAC, Thread agreements. In the NXP community is also divided into the four categories.
Where I can find the content to introduces the performance and characteristics on these four agreements？
If my equipment directly connect to the laptop or the PAD over its bluetooth devices, Is the equipment must use the BLE protocol stack?
Please refer to each stack's release notes documentation available in the docs folder.
If you want to connect a Bluetooth Low Energy device to your board, you must load the BLE stack into your board.
I'd recommend you to go through the FRDM-KW41Z|Freedom Development Kit|NXP --> Getting Started tab.