When Abroad be careful of your mobile usages.
Consumption is low. Nowadays you can send about 1,000 e-mails with 1GB. The highest consumption item is the attachment, but this is not downloaded to your device by default. Example: a PDF file is about 5 to 10 MB and a photo around 2 to 4 MB.
Consumption is low. You can surf on Facebook for about 10 hours with 1GB.
Every social network is different, of course: some are based on images (Facebook, Instagram and Snapchat), others on text (Twitter) or on geolocation, e.g. (Tinder). Obviously each has a different impact on your internet consumption. Text always consumes less surfing volume than a photo, which in turn consumes less than a video.
Consumption is low. You can visit around 2,560 pages with 1GB (the equivalent of 20 hours surfing, on average).
Note: most internet sites offer their content in a version suitable for mobiles. More ergonomic and lower consumption in surfing volume. You can access them via a browser.
Consumption is high for downloads and updates, around 40 MB. When you are using the app, its consumption varies according to the content. 1GB = 25 app downloads, on average.
Consumption is high. On average, you can download around 250 tracks or listen to 14 hours of music via streaming with 1GB.
Consumption is high. You can watch around 1 hour 30 minutes via streaming with 1GB, in standard quality. Half as much in HD 1080p quality.
The quality and length of the videos obviously affect the surfing volume consumed.