Packaging

Aside from the mouse, one finds a braided charging cable (USB Type-A to Micro-USB), rubber extension cable (USB Type-A to Micro-USB), wireless dongle, quick start guide, set of grip tape, sticker, two sticks, two USB Type-C to Micro-USB adapters, and several sets of replacement feet (three larger, one smaller, and one set of dots) inside the box.

Weight

My scale shows around 51 g (+/- 1 g), which is exactly in line with the weight cited by G-Wolves. The Hati-S Plus 4K weighs 5 g more than the ACE, which is entirely due to the larger battery. Even with the higher weight, the 4K manages to edge out the Pulsar X2 Mini or LAMZU Atlantis, which come with similarly sized batteries. An excellent weight.

Cable

The Hati-S Plus 4K comes with a paracord-like, braided charging cable (USB Type-A to Micro-USB) along with a rubber extension cable (USB Type-A to Micro-USB). Functionally, the cables can be used interchangeably for either purpose, but having two cables enables one to charge the mouse without having to disconnect the dongle first. The rubber cable has stronger shielding and thus should be used preferentially for connecting the dongle. On either cable, the connector has two horizontal notches that slot into the shell for further stabilization. Since the notches are present on the connector instead of the mouse, using a third-party Micro-USB cable is perfectly possible. In terms of flexibility, neither cable is particularly flexible, although the braided one wins in this department, and enables one to use the Hati-S Plus 4K as if it were a wired mouse with no overly perceivable difference in terms of handling compared to an actual wired mouse. The measured length of the braided cable is 1.80 m, whereas the rubber one measures 0.90 m.

Feet

The feet on the Hati-S Plus 4K are white-dyed pure PTFE (Teflon) feet. They are of average thickness and have slightly rounded edges. Glide is very good. Since the bottom shell lacks indents for the feet, replacement feet of virtually any size and shape can be used, and several such sets are included in the box already. While a sensor ring is not installed by default, several are included with the replacement sets.