iPhone X battery drain after replacing battery last week

I question your usage of Norton. Norton makes anti-virus products. Since iPhones do not get viruses, anti-virus software is unnecessary. You might try deleting it for a few days to see if it makes any difference in battery usage. Also check App battery usage for an idea of what apps may be hogging the battery.

iPhone Battery and Performance - Apple Support

Hi Upscalemomma,

Welcome to Apple Support Communities! We appreciate you reaching out for help with the battery performance of your iPhone X after having it replaced. We're certainly glad to look into this with you. We want you to have long-lasting and reliable battery life.

Since battery performance can be highly variable based on a number of factors, let's ensure we understand exactly what's going on. How long would you estimate your device lasts on a full charge before it's totally depleted? Have you noticed if the battery drains faster when using your iPhone in certain locations, or when using certain apps?

You can view a graph of recent battery performance for the Last 24 Hours under Settings > Battery. This graph can be used to analyze how long your device goes in between charges, and if there is corresponding device activity that explains more sudden drops in charge level. You can even tap right on the graph to determine which apps were using the most energy at any given hour.

The following guide has more information:

About the battery usage on your iPhone, iPad, and iPod touch - Apple Support

We'd also like to share a great resource that has helpful tips to get the most from your battery. Let us know if you have any questions about this guide:

Batteries - Maximizing Performance - Apple

Have a great day!

You had not said that your Norton was a Password Manager. You obviously need to keep that. I automatically think anti-virus software when Norton is mentioned. I see nothing in your useage that would suggest that your battery usage is anything beyond normal. You have used the phone for more than 5 hours which I would consider pretty heavy usage. That kind of usage is going to require quite a bit of battery power. I just don't see any problem. I have a 12 Mini and it is a battery eater, as it has a small battery to fit its small dimensions. My usage is much less than yours so I really can't advise you on switching to a 12. I don't think you have a problem. You use the phone a lot and that usage requires battery power. I think you should quit worrying about it, enjoy your phone and charge when necessary.

Most people charge there phone at night while they sleep. Then it is ready to go in the morning and should last through the day.