- Unlock your mobile device.
- Plug your Blood Pressure Monitor.
A popup window will prompt you to download the Withings Withings App™ app if it is not already installed. - Once the app is open, tap Start.
https://support.withings.com/hc/ja/sections/6215924284945-Wired-Blood-Pressure-Monitor-iOS
https://support.withings.com/hc/ja/sections/200335447-Setup-and-use