Yes, you may use your Smart mobile number to use the GigaPlay streaming services.
For Smart K-Life Hallyu Hangouts CHA EUN-WOO, the following will be granted access to
watch the livestreaming:
Prepaid - Smart Prepaid and TNT subscribers who are registered to
Giga K-Video 99, 299, 399 or 499
Postpaid - Smart Signature and Infinity subscribers
To view the content catalog, you can enter any mobile number when you open the app.
But to stream the content, you need a Smart Prepaid or Postpaid mobile number.