I connected my phone to a free public Wi‑Fi network for the first time in a long while, and the Google app immediately began downloading almost 2 GB of data. It wasn't a Play Store update, and I initially worried that connecting to public Wi‑Fi had compromised my phone. When I changed the network setting to "metered connection," the download stopped right away. What could the Google app have been downloading—offline speech or text-to-speech files, an AI model, a backup, or some other feature resource?
3 Answers
The most reliable way to identify it is to check Settings > Network and internet > App data usage and look at the Google app’s foreground and background totals. You can also check its storage and cache, Google Play system activity, and any pending downloads. Without those details, nobody can say exactly which resource was being fetched, but the metered-network behavior points to an optional background download rather than a hack.
It probably wasn’t anything malicious. Google apps can download large on-device resources when an unrestricted Wi‑Fi connection becomes available, including offline speech-recognition or text-to-speech language packs and newer AI-related components. Marking the network as metered prevents those background downloads, which explains why it stopped.
A local AI model is another possibility. Some Google products have been reported to download multi-gigabyte AI components without making the purpose especially obvious to users. The exact file depends on your Android version, installed Google apps, language settings, and which features are enabled.
Do those AI models really take several gigabytes of storage?