Streaming Devices / Amazon
Fire TV Cube (3rd Gen)
Fire TV's flagship box — HDMI input, built-in ethernet and hands-free Alexa.
Overall score 7.8/10
Pros
- + By far the fastest Fire TV device, roughly twice the 4K Max
- + Built-in ethernet and an HDMI input are unique in the Fire TV line
- + Hands-free Alexa without needing a separate Echo
- + Super Resolution Upscaling genuinely helps older HD content
Cons
- − No hardware refresh since 2022 — the oldest device in the Fire TV line
- − Still on Fire OS 7 (Android 9), while the sticks have moved to Fire OS 8
- − Ethernet is 10/100, not gigabit
- − Roughly double the price of the 4K Max for the same Dolby Vision and Atmos support
- − Reviewers report it sometimes fails to switch into Dolby Vision automatically
Fire TV Cube (3rd Gen) review: what the specs say
Fire TV's flagship box — HDMI input, built-in ethernet and hands-free Alexa. At $139.99, Amazon's 2022 model sits in the middle of the range — the streaming Devices we compare run from $34.99 to $249. It scores 7.8/10 overall, calculated from published specifications across 8 categories rather than from a subjective impression.
Its strongest showing is Connectivity at 9.5/10 — Wi-Fi standard, ethernet, Bluetooth, and expansion ports. The weakest is Value at 5.5/10, which is the trade-off to weigh before buying: if that is the specification you care about most, one of the alternatives below will serve you better.
Worth knowing before you buy: no hardware refresh since 2022 — the oldest device in the Fire TV line; and still on Fire OS 7 (Android 9), while the sticks have moved to Fire OS 8. Every specification on this page comes from Amazon's own documentation or a verified retail listing — where a figure is not published, the table says so rather than estimating it.
Specifications and price last verified . Report an error
Full Specifications
| Max Resolution | 4K (3840x2160) at 60fps |
| HDR Formats | Dolby Vision, HDR10, HDR10+, HLG |
| Dolby Vision | Yes |
| Dolby Atmos | Yes |
| Processor | Amlogic POP1-G — octa-core, 4x Cortex-A73 at 2.2GHz + 4x Cortex-A53 at 2.0GHz |
| RAM | 2 GB |
| Storage | 16 GB |
| Wi-Fi | Wi-Fi 6E |
| Ethernet | Built in (10/100) |
| Bluetooth | 5.0 + BLE |
| Operating System | Fire OS 7 (Android 9) |
| Remote | Alexa Voice Remote Enhanced; hands-free far-field voice on the device itself; no backlight; no remote finder |
| Connectivity | Wi-Fi 6E (tri-band, 2x2 MIMO), Bluetooth 5.0 + BLE, HDMI 2.1 input, HDMI 2.1 output with ARC, Ethernet (10/100, built in), USB 2.0, IR extender |
| Material | Fabric-wrapped set-top box with built-in speaker |
| Warranty | 12 months |
Compare Fire TV Cube (3rd Gen) With
Cheaper Alternative
Fire TV Stick 4K Max (2nd Gen) — $59.99
Premium Alternative
Roku Ultra (2024) — $149.99