Smart Grids play a crucial role in managing electric power in a more efficient, secure, and sustainable manner. These grids rely on information and communication technologies to facilitate two-way communication between energy providers and consumers, enabling better coordination in the production and distribution of electricity. This article aims to compare the main technologies that can be used in Neighborhood Area Networks (NAN) for Smart Grid data communication networks. NANs are critical to Smart Grid infrastructure, providing advanced energy monitoring and control solutions like smart metering and demand management. The article surveys commonly used technologies such as IEEE 802.15.4 g, IEEE 802.11s, LoRa, and LTE, highlighting their pros and cons. Unlike many existing works in the literature, this article does not limit itself to a theoretical comparison but also conducts network simulations using widely-used scientific tools such as ns-3 and OMNeT++. The article evaluates the technologies in two scenarios, a grid-like scenario, and a real-world scenario using actual smart meter locations in Montreal. The simulations’ results are analyzed using widely-used metrics such as Packet Delivery Ratio (PDR), network transit time, and compliant factor, and offer insights into selecting the right technology for NANs in Smart Grids based on various network scenarios.