The second-gen model builds on what is already a terrific tracker. It features an upgraded UWB chip, allowing it to track items from up to 50 percent farther away, and its speaker is noticeably louder. If you own an Apple Watch Series 9 or newer, you can also use Precision Finding from your watch to locate items instead of opening the Find My app on your phone. They’re all welcome improvements, but if you just need a tracker to keep tabs on your stuff while going out of town this spring break, the original AirTag will still do the job very well.
（作者为华东师范大学教授、新基石研究员，本报记者黄超整理）
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家庭消費約佔國內生產總值（GDP）約40%，相比之下，全球平均約為55%，而發達經濟體則約為 60%。
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