For basic 720p-1080p HD streaming needs, a steady connection of at least 5-10 Mbps is recommended by most providers. 4K streaming commands a higher bandwidth, with a minimum connection speed of 25 Mbps recommended. Because your connection speed will fluctuate throughout the day based on a number of factors, including overall usage in your area, SmartMove recommends aiming for a minimum download speed of 50 Mbps.