If you just installed Whatsapp, it might just be running in the background trying to restore all your historical messages and pics & videos. If that is not the case, uninstall the Whatsapp, and then reinstall again.

Updated to 11.3 during lunch. Been running fine till now

Charge before 20% can be quite low and may be the main cause of your battery health percentage dropping. I am using iPX since launch and is my main phone and my usage is quite high. My battery health is still 100% as I always charge it whenever I can, even when they are still 80%. I never had my phone battery percentage below 50%.

I never faced with GPS issue on my X since I purchased it...which was a week or two after launch date.

Download HERE WeGo app. It is free and can do offline maps & navigation.

I am using original Charger and Cable that comes with the phone and I charge overnight every night. Been using since iPhone X launch and right now, battery health still 100%

Most of the time only once a day....recently due to watching lots of news I gotta charge a few times.

Anyone here still use Assistive Touch even with iPhone X? Last time, reason for using Assistive Touch is to prolong the lifetime of the Home button which would spoil over time. Now iPhone X does not have a home button, wonder if Assistive Touch is still very much in use or otherwise.

Nice...I am currently using Assistive Touch to open the Control Centre instead of pulling down from the signal bar area which is a long finger stretch but its been blocking my view and keyboard...guess I'll turn it off lol.