Which would you get out of these 3?

I have a Samsung Galaxy S6. The phone is great but I'm beginning to grow tired of it. I've been using the phone for over 2 years and I couldn't get an upgrade. I'm thinking of getting a refurbished iPhone 6S Plus or OnePlus 5. But at the same time, I feel like I need a new laptop because my current one, while usable is not the greatest. Which one would you get out of the three options? I can only get one.

Laptop
The S6 is a great phone - switching from Android to Apple and you'll find there's a lot of liberty lost.
Stick with what you have.

Sounds like you are ok, but bored with the phone & the same with the laptop but to a lesser extent. I'd get the laptop.