Hi Tlw,
Thank you for reaching out and taking interest if the Galaxy Watch 4 has the accessibility to calls, text, and the internet. In line with this, yes, the watch has those features.
For more information, kindly visit the user manual on Pages 40-43, 56-57:
https://downloadcenter.samsung.com/content/UM/202109/20210929010214001/WEA_R89X_R88X_R87X_R86X_EN_UM_071621_FINAL_AC.pdf
Should you need more assistance, you may reach us via the following for immediate support:
1. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
2. Facebook Messenger: http://m.me/samsungsupport
3. Twitter: https://twitter.com/messages/compose?recepient_ id=18768513
Reference Number: 1144299054
Thank you for choosing Samsung. Have a great day!
^Chrystel