With a quick look, you won't see any visual differences between the two base models of AirPods. They're the same size and weight. But the 2019 AirPods 2 have some updated hardware inside, making them worth trading up to if you already own the 2016 model. Here's a quick rundown of the changes.
The original AirPods, along with some Beats headphones, use Apple’s W1 chip. Later iterations of this processor appear in the Apple Watch.
The newer H1 processor is Apple’s current standard for its audio devices. Along with the 2019 AirPods, you’ll find this chipset in Airpods Pro, AirPods Max headphones, and other Beats headphones like the Powerbeats and Powerbeats Pro.