You need to make a fundamental choice when you are looking for a gaming system, and you likely make a choice between the PS4 and the XBOX. They are different, but you can definitely come to a decision if you use the steps below.
1. The XBOX
The Microsoft gaming community is its own world that some people like better than the PS4. It all depends on which company you trust, and you should look into the way their gaming community works. That alone saves you time, and you must look at the controller to see how it feels. The XBOX controller feels more like a Nintendo controller, and it is not as bulky.
2. The PS4
The PlayStation controller is a little bit more like a SEga controller, but it is not chunky. It is bigger than the XBOX controller you use, and it might feel better in your hand. You also have to see if the assortment of games for PS4 works for you. Most companies make their games for both consoles, but you should see if you like the way the PS4 works as opposed to the XBOX. Try them both in a gaming store, and you get an instant sense for which feels better.
3. The Accessories
You have to buy accessories for your consoles, and each one costs money. Choose the console setup that you think is the most affordable, and seek out used or refurbished accessories that might be less expensive. Once you have chosen the system to use, you have an idea of how much you should spend.
Look at how often XBOX and PS4 update. There will come a time when both consoles are replaced, and you should be comfortable with how often they update in the meantime. You get an idea of how good the service is with each company when you read online comments, and you should get involved in the gaming community to learn when the next device is coming out. Gamers tend to know these things before everyone else does.
5. Brand Loyalty
You might already have a lot of brand loyalty for Microsoft or Sony. It does not matter what other people say if you are happy using one company or the other. Your experiences with both companies should drive your choices, and you might build brand loyalty through this process and tells you how you might game for the rest of your life.
The XBOX works great for Microsoft lovers, and the PS4 works great for avid Sony enthusiasts. The choice is yours when shopping online, but you must have a look at each brand carefully before buying a console, extra accessories, or new games.