In Smartphone Inc., you are a CEO of one of the largest smartphone-producing companies in the time when smartphones were only beginning to conquer the world. Research technologies, build your worldwide office network, develop your factory, and outprice your competitors.

Smartphone Inc. is an economic simulated Eurogame. Over 5 rounds, players program their decisions about price, research, production, and expansion in order to gain more profits and become the most successful company in the world by earning more money than rivals. The game offers a unique mechanism of planning, which combines patching mechanisms with bidding and action selection. Each of the rounds have eight simple phases: planning, pricing, production, development, research, expansion, selling, and profits.

In the planning phase, all players at the same time make a decision for the next year by patching their two plan cards and all of their development tiles. This plan sets all of the other phases, as players will use planned actions in them.

During the pricing phase, players adjust their price, according to their decision. A lower price helps to go earlier and sell more smartphones on the market, but higher prices while risky helps players to earn more money.

In production, all players at the same time produce smartphones, based on their plan.

In development, players in turns take the development tiles, which expands their plan possibilities in later rounds. All following phases are played in turn order.

In research, players in turn order use their research points based on their decision to find new technologies. Each technology has not only expanded players' ability to sell smartphones to customers, but also provide them special power. There are 6 different technologies in the game, and each has two different powers to use.

In the expansion phase, players use expansion points from their plan to open offices in neighbor regions, allowing them to sell in that region and develop their network of offices to more regions in further turns.

In the sale phase, players sell manufactured phones in regions, where they have offices. But there is limited space in regions - if your price is to high, quicker rivals can block you from selling. At the end of the phase any unsold smartphones are utilized.

In the profit phase, you receive income for your smartphones. All sold phones give you as many dollars, as their price. Also the player who sold more phones in the region receives additional profits for controlling the accessory market. At the end of this phase all sold smartphones scrapped from the map - and a new round begins.

After 5 rounds, the wealthiest player wins.