4G LTE offers speeds high enough for HD video, with average download speeds around 20 Mbps and peaks up to 50 Mbps or more.
4G devices are often cheaper and still offer a 3-5 year reliable lifespan. buy 4g
If you want to future-proof, consider dual-connectivity routers (4G+5G) that use 4G now but allow for 5G upgrades later. 4G LTE offers speeds high enough for HD