SawTroll
Information Collector
The 550xp is 10.8lbs (4.9kg) so it would be a little lighter.
359xp is 5.5kg
Both numbers are optimistic - true weight is 5.8-5.9 kg for the 359 and 5.0-5.1 for the 550xp.
The 357xp/359 weight specs are more off than usual for Husky, as they reinforced the case early in production, without adjusting the specs accordingly.