Quick verdict: Amazon’s third-generation Fire TV Stick 4K (2026) is aimed at people who want mainstream 4K streaming without paying for the more expensive 4K Max. You get Wi-Fi 6, HDR10+ and a redesigned Fire TV Remote, but only 1GB RAM and 8GB storage. Most importantly, it runs Vega OS 2.0, not Android-based Fire OS.
What is new about the 2026 Fire TV Stick 4K?
This model uses Amazon’s slimmer, more angular stick design and can draw power from a compatible television’s USB port using the included cable. If your TV cannot supply enough power, the setup may need a different suitable power connection. Amazon also supplies its redesigned Fire TV Remote. The app shortcut labels pictured in manufacturer materials can differ between regions.
Amazon describes the new 4K stick as faster than the 4K Select. That is a manufacturer claim rather than a speed measurement carried out by ViewHarbour.
Verified specifications
- Model: Fire TV Stick 4K, third generation (2026); Amazon build identifier AFTCR001.
- Operating system: Vega OS 2.0 (not Fire OS).
- Processor: MediaTek MT8698E, quad-core Cortex-A55 up to 1.7GHz, ARM G310 V2 graphics.
- Memory and storage: 1GB RAM and 8GB storage; usable space is lower after system files.
- Picture: up to 2160p (4K), 1080p or 720p at 60fps; HDR10, HDR10+ and HLG. Dolby Vision is not listed as supported for this model. Video codecs include H.265/HEVC, H.264/AVC, VP9 and AV1.
- Audio: HDMI pass-through of Dolby-encoded audio, including AC-3 (Dolby Digital), E-AC-3 (Dolby Digital Plus) and E-AC-3 JOC (Dolby Atmos) with compatible equipment and source material.
- Connections: dual-band Wi-Fi 6 (2.4GHz/5GHz), Bluetooth 5.3 and Bluetooth Low Energy, HDMI 2.1 output and USB-C for power only. An optional compatible Ethernet adapter may be required for a wired connection.
- Size and weight: 91.5 × 21.1 × 14.5mm; 39.4g, as shown in the Amazon UK product specification screenshots provided on 8 October 2026. Another UK retailer has published different figures.
Does Vega OS make a difference?
Yes, particularly if you use specialist Android apps. Vega OS is not Android-based, so older Fire OS instructions for sideloading APK files do not apply. Before purchasing, check that the streaming services and apps you actually use are available on this exact model. For a fuller explanation, see Vega OS vs Fire OS.
Is it worth choosing over the other Fire TV sticks?
For straightforward Netflix, Prime Video and other supported UK streaming services, the 2026 Fire TV Stick 4K is worth considering if its current retailer price makes sense. The 4K Select is another Vega OS option, while the 4K Max has more storage, Wi-Fi 6E and Dolby Vision. The older 4K Plus is worth a look if you particularly want Android-based Fire OS app flexibility.
See the full ViewHarbour 2026 Fire TV Stick 4K buying guide for context, or use Compare to put the specifications side by side.
UK retailer and source notes
Amazon confirms that this 2026 third-generation stick runs Vega OS 2.0, not Android-based Fire OS. Amazon UK product specification screenshots supplied on 8 October 2026 give a size of 91.5 × 21.1 × 14.5mm and a weight of 39.4g; another retailer publishes different measurements. ViewHarbour has prioritised the Amazon listing figures and explains that difference rather than concealing it. View the Fire TV Stick 4K on Amazon UK (affiliate link). Check the exact 2026 third-generation model, current price and stock on Amazon before ordering.
Sources: Amazon’s official hardware specifications; Amazon UK product specification screenshots checked 8 October 2026. The device photograph is an official Amazon launch press image, not a ViewHarbour test photograph. ViewHarbour may earn commission from the Amazon affiliate link at no additional cost to you.
Research status: specifications checked on 8 October 2026. ViewHarbour has not carried out hands-on testing of this model.
