The Golemite undergoes a significant graphic change at levels 3 and 5, 6, and 7. The Golemites go through graphic changes whenever the Golem does, and gets the same change.
At level 3, the Golemite's rocky exterior changes shade from light gray to a darker gray.
At level 5, the Golemite gains purple, crystal-like spikes, quite similar to those on the level 3 Wizard Tower and his entire body gains a purple/gray color.
At level 6, the Golemites crystal changes from purple to pink, and a few more is added on its back
At level 7, the crystals turn into a light blue color and get sharper.
As one of the three subtroops in the Home Village (the others being the Skeleton and the Lava Pup), it cannot be trained, placed or donated directly via the Clan Castle (although the parent Troops can).
The Golemite has one fifth of Golem's Damage per Second, Damage Upon Death and Hitpoints.
If you have a Golem in your Clan Castle and it splits into Golemites when defending your base, the Golem will not be destroyed if at least one Golemite survives at the end of the battle.
The Golemite is currently the only subtroop whose stats improve when you upgrade the parent troop.