Amazon Fire TV Stick 4K review: This is the media streamer to beat

The Fire TV Stick 4K is the media streamer that Amazon should have released years ago. Cooler than a Roku and much cheaper than an Apple TV, the new $50 streaming dongle offers 4K HDR video in every conceivable format while outperforming Amazon's more expensive Fire TV Cube ($120) and third-generation Fire TV ($70, now discontinued). It also corrects the stupidest mistake of previous Fire TV models by including TV volume and power controls on its remote control. Factor in powerful Alexa voice commands and you have a compelling 4K HDR streamer at any price, let alone the lowest price on the market. The Fire TV Stick 4K won't be for everyone.