AirPods and AirPods Pro are both wireless earbuds made by Apple, but they have some significant differences:

1. Design: AirPods Pro have a more compact design with a customizable fit due to silicone ear tips available in three sizes. They are also sweat and water-resistant. The regular AirPods have a one-size-fits-all design and are not water or sweat-resistant.

2. Active Noise Cancellation: This is probably the biggest difference. The AirPods Pro have an active noise cancellation feature that blocks out the noise in your environment, and they also have a transparency mode that lets you hear ambient noise when necessary. The standard AirPods do not have these features.

3. Battery Life: Both offer up to 5 hours of listening time, but with Active Noise Cancellation on, AirPods Pro offer 4.5 hours.

4. Sound quality: The AirPods Pro are designed to deliver superior sound quality with Adaptive EQ, which automatically tunes music to the shape of your ear.

5. Price: The AirPods Pro are more expensive than the regular AirPods.

6. Charging case: The AirPods Pro case is slightly larger to accommodate the different size and design of the AirPods themselves. The AirPods Pro case also supports wireless charging as standard, whereas only the more expensive version of the regular AirPods comes with a wireless charging case, the less expensive version does not.

7. Spatial audio: This is a feature that offers a more immersive sound experience, and it's only available on the AirPods Pro.

8. Vent system: The AirPods Pro have a vent system to equalize pressure within your ear to minimize the discomfort common in other in-ear designs. The regular AirPods don't have this feature.

9. Controls: AirPods Pro have more advanced on-device controls with the ability to switch between active noise cancellation and transparency mode, which isn't available on AirPods.

So overall, while both products offer high-quality audio, the AirPods Pro have more advanced features and options for customization.