. A key difference is that SD-WAN is virtual and decoupled from physical links, whereas MPLS is a circuit. MPLS is more expensive than SD-WAN. MPLS prevents data packet loss and is better than SD-WAN when it comes to data packet loss prevention.
![SD-WAN vs. MPLS: Which one to choose?](https://frontom.com/wp-content/uploads/2021/11/SD_WAN-vs.-MPLS-1.jpeg)
. A key difference is that SD-WAN is virtual and decoupled from physical links, whereas MPLS is a circuit. MPLS is more expensive than SD-WAN. MPLS prevents data packet loss and is better than SD-WAN when it comes to data packet loss prevention.