If you want to dial a phone number with your Apple Watch, the absolute simplest way is to use Siri.
Hey Siri: Dial 408-996-1010
or
Hey Siri: Dial my wife at her office
Now this last bit only works if you’ve told iOS who your spouse is. Here’s one way to do that:
- On your iPhone, open Contacts
- At the very top should be an entry labeled “My Card”, the entry that represents you. Tap to open that contact.
- Tap the Edit button in the upper right corner.
- Scroll down until you find the field “add related name”. Tap to add a related name.
- The default for this field is mother. Tap mother and find the spouse field, tap spouse. Then tap Done.
- Now tap the info button (all the way to the right, an i in a circle), then find your spouse’s contact, select it.
- Add more related names if you like.
- Tap Done.
Now Siri knows who your spouse is.
Or, you can take the simple path and just say:
Siri, XXXX is my wife.
Siri should ask you to verify that (use your own spouse/sibling/parent/child/etc for XXXX), then make the change to your contacts. [H/T Andrew Escobar]
Alternatively, take a look at this iDownloadBlog post, which reviews an app that lets you actually dial a phone number on your Apple Watch.