Finally changed from good old 6Plus to the X.

One main problem I'm facing right now for the past 3 days was connection inconsistency.

1) Wi-Fi
- TBH my room and the router has quite a distance, the 6Plus can get consistent connection. Whereas the X will jump between 3 bars and 2 bars very often. Like you can see the connection bar up down up down few times in a second. Anyone face this?

2) Cellular Data
- I'm currently on Umobile. Sometime my data will stuck on EDGE for quite sometime. I need to trigger the Cellular Data off and on to get back to LTE connection. Not sure is telco issue or what. Also, never happen on the 6Plus.

What I've done:
- Re-seat sim card - Not working
- Reset Network Setting - Not working
- Factory restore - Not working

What I've yet to do:
- Factory restore and use without restoring my old backup.
(I don't really feel like doing it really)

I'm not saying the X is a bad phone and 6Plus is better. Just some issue I need to tackle for now.

Any more suggestion?