The WF-1000XM5 is the more feature-dense option: it includes Alexa built-in, high-resolution audio support (as described), multipoint connection, touch controls, and fast charging. The included tip set is also extensive (multiple sizes), and the listing explicitly frames it as a premium audio and ANC product.
The WF-C700N focuses on practical core features: ANC, ambient sound mode, multipoint connection, quick charging, and IPX4 water resistance. It also highlights simple, tactile button operation for switching modes—useful if you dislike touch controls. If you want “everything Sony offers,” WF-1000XM5 wins; if you want the essentials done simply, WF-C700N is the cleaner package.