5G offers several key advantages over existing 4G technology including connection speeds up to 10Gbps, latency of just 1 millisecond, support for up to 1000x more connected devices per unit area, dramatically improved reliability and availability, and a 90% reduction in energy usage which can provide devices with battery lives up to 10 years. While 5G will cost more to implement and some older devices may not support it, over the coming years 5G is expected to replace 4G as the main global cellular standard.