Prime 会员日优惠：Ultrahuman Ring Air 跌至 300 美元以下，但美国贸易裁决可能会在 10 月 21 日停止销售。 Prime Day deal: Ultrahuman Ring Air drops to under $300, but a U.S. trade ruling may halt sales Oct. 21.

Ultrahuman Ring Air 现已立减 50 美元，Prime 会员日期间售价低于 300 美元，提供免费订阅的睡眠、恢复和运动跟踪。 The Ultrahuman Ring Air is now $50 off, priced under $300 during Prime Day, offering subscription-free tracking of sleep, recovery, and movement. 它避免每月收费,尽管一项美国贸易裁决可能会阻止从10月21日起的销售,引发上诉。 It avoids monthly fees, though a U.S. trade ruling may block sales starting October 21, prompting an appeal. 同时,RingConn Gen 2 Air, 160美元, 提供核心健康跟踪, 准确度和八天电池寿命, Meanwhile, the RingConn Gen 2 Air, at $160, provides core health tracking with solid accuracy and eight-day battery life, competing with pricier models. 尽管需要订阅,但Oura Ring Gen 4仍然是一个顶级的选择,具有更好的舒适性,AI教练和增强的应用功能. The Oura Ring Gen 4 remains a top-tier option with improved comfort, AI coaching, and enhanced app features, though it requires a subscription. 其他健身跟踪者也享有折扣。 Other fitness trackers also see discounts.