Global 4G connectivity accounts for about half of all mobile connections as of 2019, with 4G subscriptions forecasted to peak at 59.22% of the total by 2023. By 2025, 1.8 billion 5G connections are expected globally, accounting for 20% of total mobile connections excluding cellular IoT. Mobile operators are forecast to invest up to $1.2 trillion in network infrastructure from 2020 to 2025, with three quarters of the investment going towards 5G networks.