The Electron from Particle.io (formerly Spark.io) is a tiny development kit for creating cellular‑connected electronics projects and products. It comes with a SIM card and an affordable data plan for low‑bandwidth applications
Imagine a cellular‑connected Arduino, but with a more powerful processor and a SIM card. It also comes with Spark's development tools and cloud platform for managing and interacting with your new connected hardware. Three variants with SARA‑G350, SARA‑U260 or SARA‑U270 are available.