根据 macrumors 上的文章，新增特性（真香）如下：

1.Health Features - Earlier this year, Apple released the Powerbeats Pro 2 with heart rate monitoring, and that functionality is expected for the AirPods Pro 3 too. Temperature sensing is also a possibility. The Apple Watch can detect skin temperature, but that's not accurate for fevers. In-ear temperature readings would provide more useful data.

2.Audio Quality Upgrade - Apple is upgrading the H-series chip that's in the AirPods, which is likely to bring improved audio quality. The ‌AirPods Pro‌ 2 support Lossless Audio when paired with Vision Pro thanks to a proprietary wireless audio protocol, and Apple could expand that to other devices. The ‌AirPods Pro 3‌ could adopt Bluetooth 5.4 for better audio latency.

3.Better Active Noise Cancellation - The H3 chip will allow for even faster on-device processing for improved Active Noise Cancellation and better Adaptive Audio. The H2 chip in the ‌AirPods Pro‌ 2 actively reduces louder, intermittent noise at 48,000 times per second to cut down on environmental noise exposure, and an upgraded H-series chip could do even better.

4.Refreshed Design - Apple is going to update the design of the ‌AirPods Pro 3‌. The AirPods 4 got a slimmed down case, a hidden capacitive pairing button, and a concealed LED, so we could see those same changes with the next ‌AirPods Pro‌. The earbuds could get a design overhaul too, and upgrade possibilities include a smaller in-ear piece and a shorter stem.

5.Updated Tracking - The ‌AirPods Pro 3‌ are likely to get Apple's second-generation Ultra Wide Band (UWB) chip for more precise tracking using the Find My app.