If i have straight talk, can i use the apple watch

In respect of using the built-in cellular feature on Apple Watch Series 3 (GPS + Cellular), you would need to ask Straight Talk, which is not currently listed as a supported carrier:

Apple Watch - Carriers - Apple

Bro, I got some bad news... I have the same problem as you so I contacted them and they unfortunately said they don’t support watches... I’m sorry bro

Yes.

KiltedTim, you can’t use it... idk what the **** your saying but u can’t I just checked

I just want to clarify, can we use the Apple Watch with LTE if our carrier is Straight Talk?