That's all great, but cellular service is expensive, right? This is where Spark got clever. Rather than simply provide the hardware, it's actually become a carrier--a Mobile Virtual Network Operator (MVNO). As an MVNO, Spark cuts deals with the owners of cell towers and related infrastructure and then sells service on to its own customers. So the Electron's data plan costs just $3 per month for a megabyte of data, with $1 for each additional megabyte.