I meant the OS Skins, they most of the time look terrible, I dont hate Android looks, they dont look bad.
Storage: Can have 256 for 730€ in germany
Ram: Kind of an Downgrade? 5t had 8? Probably means a phone doesnt fucking need more than 4, though ofc thats better.
Battery: Bigger battery, but it also depends on the OS‘s optimization and usage of the battery. According to GSMARENA - Single battery charge: 17 hours 3G calls, 15 hour watching videos and 12:30 hours surfing through the web while getting a 81h endurance rating. The one plus pn the other hand: 27h calls, 9 hours webbrowsing and also 15h of watching videos and its getting a 71h rating. This may be because of android optimization so ill give you the benefit of the doubt and say yours is better, though no one will be calling this much.
Camera: Both look good, but you cant just give me the MP and say its better. Come on. Not even gonna follow up on that.
Sim: Definetly a plus, though I dont even need that tbh but I can imagine a lot of people would prefer that.
ScreenToBody: Better, but when watching videos and doing anything besides being in chrome or homescreen, that ratio is useless. The 8 has no notch, which makes the 6t have a higher ratio, but that doesnt mean its better. Movies and videos just dont utilize the notch and i dont want it in my way. If you prefer it, its fine but I use my phone to watch Videos, many other People do aswell, id wven say the majority so having a notch doesnt make it a better phone nor is it good in general.
The 8 doesnt even have 4k so idk where you got that from. 4k is better, no denying that but I dont mind 1080p at all. Most videos and movies are 1080p anyway, so I wont even be able to use 4k most of the time.