If you want an example of how many people it takes to create a cellphone, Google bought HTCs Pixel phone team, which amounted to around 4000 people. This likely

If you want an example of how many people it takes to create a cellphone, Google bought HTCs Pixel phone team, which amounted to around 4000 people. This likely includes all the software engineers that do driver work as well, but it worth noting the size. You can get away with smaller teams if you take the full package that Qualcomm gives (they do most or all of driver work for you). You saw what Essential Products was able to create with around 120 people, but they were heavily using work from other companies to launch it.