Fire TV with Vega OS: which models no longer let you sideload apps

Amazon is changing the system on its Fire TVs: some of the newest models no longer run Fire OS, which is based on Android, but Vega OS, its own system. The change has an important consequence: on these devices you cannot install apps from outside Amazon’s store (APKs), not even with the popular Downloader app.

Which models run Vega OS

According to AFTVnews’ count in October 2026:

With Vega OS (no APKs)	With Fire OS (APKs allowed)
Fire TV Stick 4K Select (2025)	Fire TV Stick 4K Max
Fire TV Stick 4K (3rd generation, 2026)	Fire TV Stick 4K Plus
Fire TV Stick HD (2nd generation, 2026)	Fire TV Cube
	Fire TV Stick HD (1st generation, 2024) and older models
	TVs with Fire TV built in

In Spain, for example, the new Fire TV Stick 4K with Vega OS has been on sale since early October 2026. The Fire TV Stick 4K Max, on the other hand, still runs Fire OS.

What it means if you watch IPTV

You can only use the apps available in Amazon’s Appstore for Vega OS, which for now has far fewer than Fire OS.
IPTV players installed as an APK won’t work on these models.
The Fire TVs you already have with Fire OS keep working as before: the change affects new models.

⚠️ Before buying a Fire TV, check the product listing: if it says “Vega OS”, you won’t be able to install apps from outside Amazon’s store. If the seller doesn’t say, look up the exact model name and generation.

What to buy if you want a device for IPTV

If you need to install your player as an APK, the safest option today is a device with Google TV: it lets you install apps from outside the store and has Google Play. See our recommendations in the best TV boxes for IPTV and the differences in Android TV vs Google TV.

💡 Kastoo for Android TV and Google TV installs with Downloader in a couple of minutes. See this guide.

Frequently asked questions

Will my Fire TV be updated to Vega OS?

Amazon has not announced that Fire OS models will move to Vega OS. For now, the change affects new models.

How do I know which system my Fire TV has?

Go to Settings → My Fire TV → About (on TVs with Fire TV built in, Settings → Device & Software → About). You can also look up the exact model on Amazon’s website.

Is Vega OS worse?

Amazon says it is faster and uses fewer resources. The downside is that it only supports apps from its own store.

Sources

These are the Fire TVs that don’t support sideloading or Downloader due to Vega OS · AFTVnews (5 October 2026)
Amazon ya vende en España el nuevo Fire TV Stick 4K · Xataka Home, in Spanish (1 October 2026)
Amazon le dice adiós a Android en los Fire TV y lo reemplaza por Vega OS · Xataka Android, in Spanish

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