The HX1 is newer, lens goes wider and longer, has better video, more modes and features, is faster and has HDMI video output, BUT the H50 has Nightshot, a remote control, and can take lens attachments. I don't know about image quality, sorry.
well i have the h50 but i was thinking on buying the hx1 because i live in mexico and here i can sell my h50 around 360-380 dlls, and the hx1 cost 419 on amazon, in 2 days im going to Northfield, VT and with the money i sell mine and some extra i can buy the hx1. thats why i was asking.
I dont use the nightshot, but sometimes i use the remote control, it wont be a control for the hx1? and of the lens attatchments i saw it was a teleconverter for the hx1 but thats all.