Smartphone enthusiasts around the world would almost certainly recall the time when modular smartphones were touted as the next big thing. With several big names in the space — including Google, Motorola, and LG — backing the modular form factor, a large segment of consumers and tech enthusiasts deduced that modular smartphones were, indeed, the future. And why not? The idea of a smartphone that could be customized by the user and upgraded when the time came was downright revolutionary and seemed a recipe for runaway success.

https://www.slashgear.com/1179899/why-googles-project-ara-modular-smartphone-was-a-complete-failure/