You need about 2.5 to 7.5 Mbps (megabits per second) to stream HD videos on your mobile device. This means you'll use approximately 1.5 to 3 GB per hour to stream HD video on Netflix. If you opt for standard definition (SD), your consumption will be about 1 GB of data per hour, at about 2 to 3 Mbps.
With the Verizon Plan Unlimited, you get a 15 GB/month allowance of 4G LTE / 5G Nationwide1 data for Mobile Hotspot and Jetpacks each billing cycle. Once you've used the 15 GB of data, your Mobile Hotspot data speed will be reduced to up to 600 Kbps for the rest of the billing cycle.
We always stream in SD. Amazon Prime video has a nice selection of movies, as well as Netflix. Amazon Prime is an annual membership and Netflix is monthly, but shared with our daughter's families.