Only Roku's $40 stick lacks 4K. Every other Roku device supports it, so the $80 model's name can mislead shoppers into paying more than they need to.
Roku sells five streaming devices, and only one of them cannot play video in 4K, the sharper picture that newer TVs support. That one is the lowest-priced stick at $40. Every other Roku device handles 4K. The $80 Streaming Stick 4K has the name that suggests it is the one to buy, but the Streaming Stick Plus gets you 4K for $20 less.
Moving from the Streaming Stick Plus to the $80 Streaming Stick 4K adds two things: support for Dolby Vision and a longer Wi-Fi range. Dolby Vision is a type of high-dynamic range, a way of showing brighter brights and deeper darks. Both sticks already offer standard HDR. Engadget notes that users are divided on whether Dolby Vision makes a visible difference, and says it is likely not worth the upgrade for most people.
The longer range is the more practical perk. It could help if the TV is a long way from your router.
The Roku Ultra and the Streambar SE both cost $150, but they are built for different jobs. The Ultra is a small set-top box. The Streambar SE is a soundbar that also works as a streaming device.
The Ultra makes the most sense if you want the strongest connection possible. That could mean a home with a Wi-Fi 6 network, or one with poor Wi-Fi. A steadier connection can also mean a better picture.
Start with 4K. If your TV supports it and you want the simplest choice, the Streaming Stick Plus covers it. Consider the $80 stick only if the TV sits far from the router or you specifically want Dolby Vision. Consider the Ultra if connection quality is your main worry. Consider the Streambar SE if you want speakers and streaming in one device.
Roku streaming sticks remain among the most popular streaming hardware, even after a recent price increase.
If your TV is 4K, the Streaming Stick Plus gets you there for $20 less than the $80 stick whose name says 4K.
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