Cricket wireless Apple watch

Here is the list of current Apple Watch Carriers

https://www.apple.com/watch/cellular/

If Cricket ever supports the Apple Watch, they will be listed on the above webpage.

Cricket is an MVNO carrier that piggy backs on one (or more) of the major carrier's cellular network. To support the Apple Watch, they would need to negotiate with their carrier (or carriers) to support 2 IMEI numbers being associated with a single phone number. Since most MVNO carriers operate on being inexpensive, chances are, unless the MVNO can absorb the cost, the major carriers are going to extract a higher premium from the MVNO to support the Apple Watch.

The advantage for the major carriers is they can get all the Apple Watch customers on their higher cost/profit plans.

There are some MVMOs that support the Apple Watch. Xfinity (Comcast), and I think Spectrum cable networks.

User to user only from. No one from Apple nor Cricket is here. Honestly though, no one but Cricket Wireless could answer that question.