| Ethernet cables use electric signals as the data transmission medium. | Fiber optic cables use light signals as the data transmission medium. |
| Ethernet cables transmit data at relatively lower speeds. | Fiber optic cables transmit data at much higher speeds. |
| These cables are highly susceptible to electromagnetic and radio interferences. | Fiber optic cables are immune to electromagnetic and radio interferences. |
| Ethernet cables are less secure. | Fiber optic cables offer high degree of security. |
| Ethernet cables are made of copper wires. | Fiber optic cables are made of glass or plastic strands. |
| They are comparatively cheaper. | They are expensive. |
| Ethernet cables are easy to install. | The installation of optical fiber cables requires specialized accessories. |