Google's latest smartphone, the Pixel 8a goes on sale today - a more affordable version of October's Pixel 8 and Pixel 8 Pro, with which the tech giant aims to wrestle more of the market out of Apple's and Samsung's hands. While the devices and their AI-driven software may well win over new customers, data from the Statista Consumer Insights survey suggests Google's biggest battle could be to hold onto the ones they've already got.