Apple Watch not texting over cellular

[GreenSub]

With all the texting issues, I thought to see if my Apple Watch could text over Visible cellular while my iPhone was turned off. I have the watch on my Visible plan.

iMessage worked fine, but not to Androids over cellular. 
Should this work on Visible?

[GreenSub · Accepted solution]

I found this at https://support.apple.com/en-au/HT205547

“To receive SMS, MMS or push notifications from third-party apps on your GPS + Cellular Apple Watch, your paired iPhone must be turned on and connected to a Wi-Fi or mobile data network, but it doesn't need to be nearby. You also need to be signed in to iMessage on your iPhone to use Messages on your watch.”