Yep it depends what you want. More keypoints (33 vs 17) or a model that has less “jitter” when predicting etc - movenet was designed for fast movements and more extreme poses I believe and when I last tested it runs at 60 FPS on a current gen iPhone, and around 120 FPS on a desktop with 1070 Nvidia GPU (which is a few generations old now).
We have had companies in physiotherapy use MoveNet for real world production use cases for this reason. So choose what is best for your use case and try them both out! Both run well in browser so you can see what works best for your use case and then once you know you can decide which one you want to port to React Native. Good luck!