Apple’s second-generation AirTag builds on the original 2021 model with smarter tracking and a few hardware refinements. On the outside, almost nothing has changed. But inside, there are meaningful upgrades that could matter depending on how you use it. Here’s a clear breakdown of how the new AirTag compares to the first version. Design and Compatibility Both models keep the same small, circular design with a polished stainless steel back and white front. They still use a CR2032 coin battery and are rated IP67 for water and dust resistance, according to Apple. That means they can survive splashes and brief submersion. Accessories remain fully compatible. If you already own key rings, loops, or luggage holders for the first AirTag , they fit the new one as well. The newer model is slightly heavier, but the difference is barely noticeable in everyday use. Precision Finding and Range The biggest change is inside. The original AirTag uses Apple’s first Ultra Wideband chip.…