GlobaleSIM sells eSIM plans for Singapore that include a phone number and SMS capability. The plans range in price from $4.00 to $65.00 USD and are valid for 7 to 30 days, with data caps from 1GB up to 50GB. Each plan uses the dialing code +1, allows inbound and outbound voice calls, and supports inbound SMS only.
If you need a specific combination of data, validity, or call/SMS features, it is advisable to confirm the details directly with GlobaleSIM before purchasing.