Hello guys and gals. I wanted to bring you a quick update, and the conclusion of this story. Thanks to everyone for your opinions, all of them were taken into account.
I finally made a choice, I'm keeping this iPhone 8. The battery life is great honestly, it goes from 8 to 9 hours of on screen time -it is actually better since I disabled the Screen Time feature-, it has better WiFi and 4G reception than my SE, the GPS is accurate, the screen is gorgeous, and it is somehow manageable with one hand. Actually I use it only with one hand.
Just one caveat: it was almost impossible to handle without a case. The glass back is grippy, but the aluminum sides are slippery if don't managed carefully. Now I have a transparent thin silicone case, which is yellowish, but I don't care. It is thin enough to make or confortable, and thick enough to offer a bit of extra protection in case of any Drop. I don't count on it, but I won't carry my phone with a bulky case. Without the case, the phone is glossy and beautiful, but fragile.
With an A11 and iOS 12 I finally started to use Siri. I know Hey Siri it was available for my SE but 1) the power consumption was higher, and 2) Siri was a bit retarded on iOS 10. I mean, it's not the smartest on the class, but it's pretty useful on iOS 12. By the way, if anyone knows how to block my contacts to Siri I will be grateful, I don't want to make accidental calls to anyone.
The home button with the haptic feedback is kinda cool, but Touch ID 2 is amazing. I was used to the first version with my SE, but now it's much faster, wow..
The speakers are pretty loud, and the content is a bit more enjoyable on this 4,7" screen and the stereo speakers.
I haven't tested the camera too much, but I don't see a big improvement compared to the SE one. I even take some blurry images and this didn't happen with OIS, right? A bit disappointed with the camera honestly. I've seen some pictures from the XS and they are stunning.
I don't know if I'm missing something. I truly want to use more my smartphone and I think this step forward in tech is going to help me with that. I'm going to try social and dating apps like OKCupid or Tinder, although I'm not sure if I'll open an Instagram account. I'm not a cool guy who's taking pictures of their awesome trip or parties -I don't party-, but I like to take pictures of flowers and trees and dogs and cats and walls and doors and old churches... Is it worth to open an Instagram account if you're not going to pose?
Okay, I think I made my point, you can suggest me other apps tho, social or just useful. And yes, I already set up Apple pay on this iPhone.
Reading books on iBooks is not as comfortable as I thought on this 4,7" screen, but I have the regular iPad anyway. I find the iPad mini better suited for that purpose, but it's so underpowered and out dated that in not going to buy one until they refresh it.