Don’t have cellular

There are 2 versions of the Watch, one is GPS that requires being paired to an iPhone for calls and uses the iPhone cellular information and the other is the GPS + Cellular option, where the Watch has its own Cellular settings and number. This requires a separate cellular plan from your carrier. Here is some more information about the difference and settings option.

About Bluetooth, Wi-Fi, and cellular on your Apple Watch - Apple Support

The other quick confirmation that the Apple Watch supports cellular: The Digital Crown has a red ring (or full red center on Series 3).

Additional to the suggestion from Mac Jim ID, please see Identify your Apple Watch - Apple Support to find your model number and identify your watch capability.

Also be aware Apple Watch is not fully international for cellular functions. In particular, a watch purchased in North America is not compatible with cellular networks in the rest of the world (or vice versa) because different radio frequencies are used in different regions. See Apple Watch - Carriers - Apple for more details of which node3l works in which region.

hab1ba wrote:

I have GPS Cellular and I need help to get my Apple Watch to have its own Cellular not connected to my iPhone. Anywhere it says to go to the Watch App and press Cellular but I do not have that option even when I search it.

If you indeed have a Cellular Apple Watch, then you have 3 options

A) treat it like a GPS Apple Watch and depend on the iPhone for cellular calls (least expensive as no extra cellular costs).

B) Pair the Apple Watch to your iPhone, and share your iPhone's phone number. This requires a cellular carrier that supports the Apple Watch, and generally adds $10 U.S. to your iPhone bill.

C) You use the Apple Watch Family Plan, where your Apple Watch is controlled by an iPhone owned by a family member and the Apple Watch has limited functionality, because it does not have its own iPhone to share services with.

Do you have the Cellular version of your watch or just the GPS version?

Go to Settings > General > About on your watch.

What do you have under Model Number?

Does it show Carrier and Modem Firmware in the about page?

What is the Model Number after the A?

Did you look at the digital crown to see if there is any red on it? If there is no red circle on the crown, you do NOT own a cellular Apple Watch. It's as simple as looking there.