You can attach your Fitbit Air to almost any old-school watch
There are a few ways to combine the screen-less FitBit Air with an existing analog watch.
原文出处：Engadget （本文由聚合程序自动采集，版权归原作者所有）
原文出处：Engadget （本文由聚合程序自动采集，版权归原作者所有）