Amazon Fire
TV Cube 4
The smartest streaming cube just got smarter
Excellent
The Fire TV Cube 4 is Amazon's most polished streaming box, and after three weeks the lab's takeaway is that it has stopped feeling like a content-store first, hardware second device. The HDMI input passthrough alone makes it the best smart-home hub for households juggling cable + streaming + Alexa devices.What we testedWe ran the Cube 4 …
The Fire TV Cube 4 is Amazon's most polished streaming box, and after three weeks the lab's takeaway is that it has stopped feeling like a content-store first, hardware second device. The HDMI input passthrough alone makes it the best smart-home hub for households juggling cable + streaming + Alexa devices.What we test
Refreshed daily.
Where it wins — measured
- Blazing-fast hands-free Alexa control, 8K HDR10+ passthrough support, built-in eARC for premium audio setups, completely cable-free HDMI control
Where it loses — measured
- Requires Amazon ecosystem for best experience, no local storage for downloads, premium price over stick alternatives
How we tested.
Every device runs the full PixlRun Lab suite over 14 days. Display measurements use a Calibrite ColorChecker Studio + Calman 2026. Battery is measured at standardized brightness with networking on. Performance is measured under sustained 25°C ambient. Color accuracy is measured at factory profile — no calibration shortcuts. All scores are reproducible from our per-category methodology spec.