Unfortunately, Since my Phillips InnospireGo is no longer made, I haven't found a handheld unit that will hold up. Now I travel with my old reliable - a DeVilbiss Traveler - it is compact, has a battery pack that holds a charge for a long time, and is safe to run with an international adapter plug. I just weighed it, and with the attached battery and charger it is 2 pounds. Everything fits in a case about 3" X 5" x 7".
Do you happen to be going to the UK? They have a handheld available that is well-rated - I don't know the logistics of getting it there.
Sue