Roku offers five streaming devices with different picture quality options
Roku currently sells five distinct streaming hardware models that vary primarily by resolution capabilities and price points.

Price and resolution differences
Every product in the lineup except the lowest-priced stick at forty dollars supports four thousand resolution output. The Streaming Stick Plus provides this high definition feature for twenty dollars less than the model named for it. Consumers looking strictly for standard high definition can choose the cheaper option without losing picture quality.
Additional features on premium models
Upgrading to the four thousand version adds support for Dolby Vision and extends wireless signal range. Some users debate whether this specific visual technology offers a noticeable improvement over standard high dynamic range formats. Higher-end units also include these extra capabilities beyond just the resolution upgrade.
Market popularity of sticks
These devices remain popular choices despite recent increases in their retail prices. The company maintains that picture quality is the main factor buyers should consider when selecting a unit. Other minor features exist but do not change the primary decision for most shoppers.
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