Packaging
Aside from the mouse, one finds a USB Type-A to Type-C charging cable, wireless dongle, set of larger replacement mouse feet, and quick start guide in the box, which is actually a carrying case.
Weight
My scale shows around 61 g (+/- 1 g), which is slightly less than the weight cited by Endgame Gear. The direct competitors are the slightly larger and solid-shell Razer Viper V3 Pro at 54 g and the likewise slightly larger and solid-shell Logitech G Pro X Superlight 2 at 58 g. A very good weight.
Cable
The XM2w 4K comes with a braided charging cable (USB Type-A to Type-C). In terms of flexibility, this one is identical to the highly flexible charging cable of the XM2we, and allows playing while charging without feeling overly restricted. The connector is angled upwards, which is a design that was originally already announced for the XM2w, and has previously been seen on Zowie and VAXEE wired mice. Its measured length is 1.80 m.
Feet
The feet on the XM2w 4K are white-dyed pure PTFE (Teflon) feet. They are of above average thickness and have slightly rounded edges. Glide is excellent. A recession for a sensor ring is present, and the corresponding skate is included in the box, but must be installed manually if so desired. In addition, the feet recessions allow for larger feet, a set of which is included in the box as well.