Could you elaborate on why you're asking if 5GB is considered a lot of data? It's a relative term that can vary depending on the context. For example, if you're just sending a few emails or browsing the web, 5GB would be more than enough. However, if you're streaming high-definition videos or downloading large files regularly, 5GB might not last very long. Additionally, storage needs can differ significantly based on personal or professional requirements. Could you provide more context to help me give a more accurate answer?