Add Your Devices

A device is whatever measured a value: a scale, a blood pressure monitor, a watch, an air quality monitor, a camera. It’s separate from how the value arrived: a weight read off your scale and typed in is manual, with the scale as its device.

Add a Device

1. Open Devices, from the account menu at the bottom of the sidebar, and choose Add device. Or search for Add device… from anywhere.
2. Give it a Name that tells it apart, such as “Bathroom scale”.
3. If you like, add its Make, Model, and Serial Number.
4. Under Measures, choose the metrics it measures. When you log one of them, the device is offered; a device that lists nothing is offered for every metric.
5. Choose Add.

Devices Added for You

Any import or sync that names a device adds it: a watch or a phone in Apple Health, a Withings scale, the camera that took your photos, or the name you give an Aranet4. You can edit them like your own.

Software Versions

An update can change a device’s readings. Open the device’s … menu and choose See software version history, then Add version with the Version and the date it’s From. The Devices table shows each device’s current version.

Use Devices

• When you log a value, choose its Device.
• On a metric’s chart, choose Break down by, then Device, to see two scales side by side. See Change a Chart’s Range, Grouping, and Breakdown.
• In a data table, select several values you logged and choose Change device to set it for all of them at once.

Archive or Delete

Both are in the device’s … menu on Devices, or in a selection’s menu for several at once:

• Archive a device you no longer use: it’s no longer offered, and stays on the values it measured. Show archived lists it again, and Unarchive brings it back.
• Delete removes the device after you confirm, saying how many values it measured. Those values stay, with no device.

Deleting a source’s data keeps the devices it added.

Related

• Why Your Devices Disagree About Your Weight and Your Steps