TOWER SG5010
Size: 40.2x20.2x43.2mm
Weight:38g
Stall torque: 3.1kg/cm(4.8V); 4.5kg/cm(6V);
Operating speed: 0.17sec/60°(4.8v); 0.4sec/60°(6v)

FUTABA 3003
size:40.4*19.8*36mm
Weight:37.2g
Stall torque:3.2kg·cm(4.8V) 4.1kg·cm (6V)
Operating speed:0.23sec/60°(4.8V) 0.19sec/60°(6V)