As I mentioned in a previous blog post, 4G is really pretty good. It makes quite a few useful things possible:
- fast general Internet access (on the order of DSL)
- download and even upload of high-resolution video
- always-on behavior (with batteries lasting the entire day)
- apps relying on location and identity (technically a smartphone feature).
As a testament to this success, there are well over 700 commercial 4G networks deployed across the world, covering more than 80 percent of the global population.