The MS460 weights 6.5kg (as adverticed) and the 372xp weights 6.4 kg (vs. the adverticed 6.1), according to independent tests (DLG).
Here is more details from DLG:
H.372xp; 3.9 kw/9500 rpm - 4.1 nm/7300 rpm - 6.4 kg
J.2171; 3.9 kw/9600 rpm - 4.2 nm/7000 rpm - 6.4 kg
MS440; 4.0 kw/9500 rpm - 4.4 nm/7000 rpm - 6.2 kg
MS460; 4.4 kw/9500 rpm - 5.4 nm/6750 rpm - 6.5 kg
7300; 4.4 kw/9500 rpm - 4.9 nm/6500 rpm - 6.4 kg
7900; 4.7 kw/9500 rpm - 5.1 nm/7200 rpm - 6.4 kg
Just keep in mind that these saws were the European versions. There
could be differences in US versions. The advertced numbers are the same, though.
In addition, there are a lot of members on this forum that for some reason find E-lux kw's and nm's to be more effective than German ones!