wall-mount fit and footprint

#1
Included wall-cover hardware helps hide old holes or mismatched wall openings from the previous thermostat.
#2
One review highlights the included trim plate as useful for covering wall marks or holes.
#3
Mounting hardware seems sturdy and a back plate is available, but one review notes that upgraders to the new generation need a different mounting plate.
#4
The compact footprint and optional trim plate help wall fit, but one reviewer notes the smaller base plate can leave old wall marks exposed.
#5
Wall-fit feedback is mixed: one review says it can sit awkwardly without a trim plate, while another says a trim kit keeps the wall looking neat.