How much storage do tasks take up? ActivityMB or GB*Downloading social media appsDepends on the overall size of the app, but approximately between 5MB and 2GB per app downloaded onto your phoneDownloading filmsNetflix 280MB for an hour episode (SD) 440MB for an hour episode (HD)How much phone storage do you need? – Asda mobile mobile.asda.com › scoop › how-much-storage-do-you-need