Just to clear things up you mean 3.64 lbs (1.65kg). I saw 1.6 lbs and was like "woah that's well under 1kg for a 15" laptop!"
I think 3.64 lbs (1.65kg) is perfectly acceptable for a 15" laptop, not the lightest but also not the heaviest.
However 49Wh is on the low end for this size laptop imho. Granted it isn't having to put a HiDPI screen and hopefully the Ryzen is more energy efficient than Intel but I doubt it is going to be a show stopper in the battery life department.
I think 3.64 lbs (1.65kg) is perfectly acceptable for a 15" laptop, not the lightest but also not the heaviest.
However 49Wh is on the low end for this size laptop imho. Granted it isn't having to put a HiDPI screen and hopefully the Ryzen is more energy efficient than Intel but I doubt it is going to be a show stopper in the battery life department.