how to know what apple watch futures is there a way go onlinr enter model num or ser. num to find out?

Hi

All Apple Watch models have the same internal hardware specifications and offer the same software features (except for Apple Watch Hermès, which includes additional watch faces).

To identify your Apple Watch by model number:

• Check the model number of your Apple Watch:
  • On your watch, go to: Home screen (single press on the Digital Crown), then tap on Settings > General > About - scroll down to Model.
  • On your iPhone, in the Watch app, go to: My Watch > General > About - see Model.
• Check your model here:

  Identify your Apple Watch - Apple Support

You can also review service and support coverage by entering the serial number here:

https://checkcoverage.apple.com/