When we tested the Streaming Stick 4K, we saw content crispness jump to 1080p and then 4K in short amounts of time. It's got all the apps you could need, too.

Otherwise, the Roku Streaming Stick 4K is a perfect balance of price and performance, costing $50 and providing snappy navigation and smooth streaming. Most notably, we've finally got Dolby Vision on this Roku stick, so your favorite streaming shows will have the right color balance and contrast (provided your TV supports it, too). The king stays the king, though, because little changed - and only improvements came with. The Roku Streaming Stick 4K is a small, but noteworthy, upgrade over the Streaming Stick Plus it replaces. Not only do we spend hours and hours watching shows and movies from the top streaming services on these devices, but we compare them against those with similar prices, to help you figure out which is best for your budget. Some of us at Tom's Guide own multiple entries from this list of the best streaming devices, to see how they evolve over time. Oh, and Roku (and any device that can get The Roku Channel, which includes Fire TV sticks), just got big HBO shows such as Westworld, for free (with ads). This model added faster performance and Dolby Vision on top of its predecessor. Our current pick for very best streaming device overall is the Roku Streaming Stick 4K. Not just by watching movies and shows on them, but by timing how long it takes to open apps across the many of the $50 and up streaming devices. Oh, and we also give points to who has the best home screens, and admire the Chromecast for adding more than 800 free ad-supported TV channels to its home screen's Live tab.

That's why we test the heck out of these devices. Selecting a streaming device can get pretty tricky, though.

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