Benefits of unsteered SIM cards
When considering cellular IoT connectivity providers, it is important to understand how their SIMs are configured to switch networks — both when crossing borders and when signal strength is poor.
Due to what is called ""network steering"", many SIMs in the market are locked into a pre-fixed set of preferred networks based on company partnerships, which often results in connectivity issues in international markets.
To give your IoT devices as much flexibility as possible, look for SIMs that are unsteered and you will have the most network options available to your devices worldwide.