My previous phone was an iPhone 6S and I think "Hey Siri" worked significantly better on the 6S than the iPhone X. "Hey Siri" almost never works on the first attempts and usually it takes two attempts to trigger it. I have to hold the phone close to my mouth to get it working. I have to say "Hey Siri" several times to get it working when the iPhone X is on the desk that I'm working on. Did anyone notice anything similar?