谷歌推出类似 Whoop 的无屏 Fitbit Air
该设备配备健康和健身跟踪功能，如 24/7 心率、带有心颤警报的心律监测、SpO2、静息心率、心率变异性、睡眠阶段和持续时间等。
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来源: TechCrunch
The device comes with health and fitness tracking like 24/7 heart rate, heart rhythm monitoring with Afib alerts, SpO2, resting heart rate, heart rate variability, sleep stages and duration, and more.