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The Fire TV Cube costs $139. The Fire TV Stick 4K costs $49. Both are Amazon devices. Both run Fire OS. Both stream 4K Dolby Vision. The $90 difference buys hands-free Alexa, Wi-Fi 6E, Ethernet, HDMI-in, and a significantly faster processor. The question is whether those upgrades are worth triple the price.
Quick Comparison
Fire TV Cube vs Fire TV Stick 4K 2026
| Feature | Fire TV CubeAmazon's Flagship | Fire TV Stick 4KBudget Pick |
|---|---|---|
| 4K Dolby Vision | Yes | Yes |
| Dolby Atmos | Yes | Yes |
| Wi-Fi | Wi-Fi 6E (6GHz) | Wi-Fi 5 |
| Ethernet | Yes | No |
| Hands-free Alexa | Yes | No |
| HDMI-in | Yes | No |
| USB-A port | Yes | No |
| Processor | Octa-core 2.0GHz | Quad-core 1.7GHz |
| Platform | Fire OS | Fire OS |
| Price | ~$139 | ~$49 |
| Buy Now | [VERIFY: ~$139] → | [VERIFY: ~$49] → |
Streaming Quality: Identical
Both output 4K at 60fps with Dolby Vision, HDR10, HLG, and Dolby Atmos. The Cube's faster processor doesn't make Netflix look better. Video quality is the same.
What $90 More Buys
Hands-free Alexa: The Cube's built-in far-field microphones detect "Alexa" commands from anywhere in the room. The Stick 4K requires pressing the remote button.
Wi-Fi 6E: The Cube supports 6GHz Wi-Fi — higher bandwidth ceiling on Wi-Fi 6E routers. The Stick 4K is limited to Wi-Fi 5 (2.4/5GHz).
Ethernet: The Cube has a physical Ethernet port. Wired streaming eliminates buffering on congested networks. The Stick 4K is Wi-Fi only.
HDMI-in: Run a cable or satellite box through the Cube and control it with Alexa. Unique feature not available on any streaming stick.
Faster processor: The Cube's octa-core chip loads apps faster and navigates the interface more smoothly than the Stick 4K's quad-core.
Who Should Pay More
Upgrade to the Cube if: You want hands-free Alexa, have a cable box to integrate via HDMI-in, have a Wi-Fi 6E router, or need Ethernet for wired stability.
Stick with the Stick 4K if: You just want capable 4K streaming at the lowest price, are fine pressing the remote for Alexa, and don't need cable box integration.
Our Picks
Amazon's Flagship
Amazon Fire TV Cube (3rd Gen)
[VERIFY: current price]
Amazon's most powerful streaming device. True hands-free Alexa, Wi-Fi 6E, Ethernet, HDMI-in, and significantly faster processor than any Fire TV stick.
Pros
- Hands-free Alexa — speak from anywhere in the room
- Wi-Fi 6E for maximum wireless bandwidth
- Ethernet port
- HDMI-in for cable/satellite box control
- Fastest Fire TV processor
Cons
- $139 — $90 more than Fire TV Stick 4K
- Same streaming content quality as cheaper sticks
- Ad-heavy home screen (same as all Fire OS devices)
Budget Pick
Amazon Fire TV Stick 4K
[VERIFY: current price]
Amazon's capable budget 4K stick. Same 4K Dolby Vision quality as the Cube, Alexa voice control (remote press), and Fire OS at $49.
Pros
- $49 — $90 less than Fire TV Cube
- Same 4K Dolby Vision streaming quality as Cube
- Alexa voice control (remote press)
- Compact plug-behind-TV form factor
- Full Fire OS app catalog
Cons
- No hands-free Alexa
- Wi-Fi 5 only
- No Ethernet
- No HDMI-in
- Slower processor than Cube
Bottom Line
Buy Fire TV Cube if hands-free Alexa or HDMI-in cable integration is what you actually need. Those features have no equivalent on any streaming stick at any price.
Buy Fire TV Stick 4K if you just want capable Amazon streaming at $49. The streaming quality is identical — the only difference is in the premium features, not the content.
Also see: Fire TV Cube vs Fire TV Stick 4K Max , Fire TV Stick 4K Max vs Fire TV Stick 4K , and Fire TV Cube Review .