AirPods 2-4

            AirPods 2

• Material: The earbuds and charging case are constructed from a glossy white plastic.
• Design: The earbuds have a long stem, and the case has a simple design with a Lightning charging port.
• Charging Case: The 2nd model AirPods come in a standard Wireless Charging Case with a Qi-certified wireless charging feature.
  
  AirPods 3
  
  Material: Still primarily made from glossy white plastic, the 3rd model incorporates recycled materials in some components, such as 100% recycled aluminum in the case hinge.
  Design: The earbuds feature a contoured fit with a shorter stem and are both sweat and water-resistant (IPX4 rated). A force sensor is added to the stem for more intuitive controls.
  Charging Case: This generation introduced a MagSafe Charging Case, which can be charged wirelessly and magnetically attaches to MagSafe chargers.
  
  

  AirPods 4
  

• Material: The 4th model continues to use recycled materials in its construction, with at least 50% recycled plastic in some parts. This model is also IP54 dust, sweat, and water-resistant.
• Design: The earbuds have a refined contour for a more secure and comfortable fit, along with an updated force sensor on the shorter stem for precise control.
  Charging Case: The standard 4th model AirPods and the ANC version both come with a USB-C charging case. The case for the ANC model also includes a speaker for use with the Find My feature.