This depends on your own requirements from the wireless dongle and what extra features you want it to do. All connect to your iPhone wirelessly, however some offer Android Auto support (wireless) and some also feature multi-user support should you be sharing your CarPlay vehicle with someone else in the car. Some boot up fast, some have more custom/compatibilty options in their web based settings area. I have reviewed many CarPlay wireless dongles on my channel, so head over to this playlist to learn about each one and there are also a few round up videos there too.