LG Q6 Plus dimensions are 142.5 x 69.3 x 8.1 mm (W x H x D).
LG Q6 Plus has 5.5 Inch Full HD+ FullVision display which offers 493 PPI display resolution. LG G6 Plus also has Corning Gorilla Glass protection.
No. LG Q6 Plus does have the LED notification light and it also has the Always-On display.
Yes, LG Q6 Plus is a metal body phone.