Google is taking into account countries and areas where cellular connection can be intermittent. At its Google for Brazil event, the company announced a new backup option on Google Photos. Aside from holding off all backups until you can get on a Wi-Fi connection, backing up photos on cellular data and Wi-Fi for videos, or backing everything up on whatever connection you’re on, Google can now upload low-quality images on data and will replace these with higher-resolution copies once on Wi-Fi.
According to Google, these low-res images will still look good when viewed on a smartphone-sized screen and can be uploaded quickly even on a 2G connection. The feature is coming to both Android and iOS versions of Google Photos.
Source: Android Police