Yoga c940 15" vs Yoga 9i 15"

Hello! I've been considering buying a c940 15" lately, but I noticed that the 9i 15" was coming out soon (and it actually released earlier today on the Lenovo store) so I decided to wait and see how it compares.

Other than the improvement in CPU and GPU, do you guys know what has changed with the 9i (15" specifically)? I'm mostly confused about whether it has a new trackpad and display or just the same as the c940 15". I know the 9i 14" has a new haptic trackpad and nicer keyboard, but from what I've looked at I can't tell if the 9i 15" does too.

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