VPNs can make your connection slower because the VPN server bottlenecks your bandwidth. Google claims its servers are fast enough that users shouldn't notice a difference. You will use a little more data, though. Google estimates a 10 percent increase if you leave the VPN on all the time. That's bothersome for a service that charges you based on how much data you consume.
Google says it doesn't keep logs of your data, but it may use metadata to improve its VPN service. Google already has an automatic VPN feature on its Pixel phones via the Google Connectivity Services package. When you're in range of a known good open Wi-Fi network, your phone may connect to it and use Google's VPN to keep your data safe. This is most likely the same back end.
The Fi VPN will start rolling out later this week, but it'll only work on Android Pie. Limiting a feature to the latest version of Android is usually an impediment to adoption, but most Fi phones are Pixel and Android One devices that get quick updates.
Now read: LG G7 ThinQ Is Now Available In the US for $750, Google drops Project Fi invite requirement, puts Nexus 5X on sale for $200, and Google finally unveils ‘Project Fi’ wireless service
