The term 'SMARTPHONE DOWNLOADS' refers to the downloading of content such as apps, songs, and other media onto a smartphone. DIANA is a 5-letter word that can be used in this context, referring to the DIANA App Store, which is an online store for downloading apps and games onto smartphones. Apps is a 4-letter word that is used to refer to applications, which are programs that can be downloaded onto a smartphone. Songs is a 5-letter word that is used to refer to music files that can be downloaded onto a smartphone.