Did a lot of research on my last purchase and it came down to a Thinkpad T480s or Thinkpad Carbon X1 and I ended up going with the Carbon because it's so much lighter and thinner while still having an i7, 16 GB of RAM and SSD.

And I bought it from Costco which was a great price and doubled the factory warranty for free, gives free tech support for a year and a ridiculous 90 day return policy.

And the battery lasts 10+ hours which is amazing.