More than 400 million phablets will ship in 2019, a five-fold increase over the 138 million devices estimated to be shipped in 2015.
Fingerprint authentication will account for the overwhelming majority of biometric apps in the medium term.
The Boston Consulting Group (BCG), a global management consultancy, revealed that 17 per cent of consumers in Western Europe would rather give up sex than their mobile Internet service, while at least 50 per cent would go tee-total to maintain access.
Juniper Research predicted that the number of online purchases and payments made on mobile devices will soar in the next five years, as retailers prepare to offer e-commerce bargains as part of what has become known as Cyber Monday.
Annual mobile operator expenditures are now in excess of $800 billion (€638 billion), and several leading players face the possibility of costs exceeding revenues by the end of the decade without remedial action.
Just over 2 billion mobile phone or tablet users will make some form of mobile commerce transaction by the end of 2017, up from 1.6 billion this year.
The number of users of contactless payment services based on near field communications (NFC) technology will reach around 516 million by 2019, up from 101 million this year.
Voice and messaging traffic lost to over the top (OTT) players such as WhatsApp, Facebook and Skype will cost network operators $14 billion (€11 billion) in revenues globally this year.
More than 100 million smart watches will be in use worldwide by 2019, with a host of premium brand launches over the next 12-18 months bringing the category into mainstream consumer consciousness.
The number of smartphone shipments will approach 1.2 billion this year, an increase of 19 per cent from 985 million in 2013, according to latest forecasts by Juniper Research.