It ultimately depends on the charger how fast the Watch charges. I have used several Anker USB chargers to charge both of my Watches and have not noticed much difference in charging time with the Belkin Boost Charger. My main concern with the charger is that the watch, my iPhone and my iPods can be charged at the same time in one place and on one USB charger. By the way, the design and workmanship are top notch. The price is justified in my opinion. I have ordered a second Belkin Charger in a different design for my wife. We are satisfied with it

Hello, I have not yet charged my Apple Watch 7 with the new Belkin Boost Charge. That's why I can't answer your question at the moment.
I ask for your understanding. Please ask again later. Thank you very much.