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Xiaomi Mi Box S 4K — product photo
REVIEW ◆ UPDATED · By FullTVBox Test Bench · · updated Jun 15, 2026 · how we test

Xiaomi Mi Box S 4K Review: The Best Budget Android TV Box

At under $50, the Xiaomi Mi Box S is the cheapest way to get a clean Android TV experience with 4K HDR support. We tested it to find out what corners were cut.

Bench score
3.9 / 5.0
// Spec sheet
Released
2023
Launch price
$49
Chipset
Amlogic quad-core
RAM
2 GB
Storage
8 GB
OS
Google TV
Max output
4K @ 60fps
HDR
Dolby Vision, HDR10+
Audio
Dolby Atmos
Connectivity
Wi-Fi 5, Bluetooth
Ports
HDMI 2.1, USB 2.0
Remote
Google Assistant voice remote

Bottom line: The Xiaomi Mi Box S ($49) is the cheapest way to get stock Android TV with the full Play Store, but you’ll feel the 2GB of RAM and a slow UI. Fine on a tight budget; stretch to the Fire TV Stick 4K Max for a faster, better-supported device.

Overview

The Xiaomi Mi Box S runs stock Android TV — not Amazon’s Fire OS, not Roku OS — which means access to the Google Play Store, Google Assistant, and Chromecast built in. At under $50, it’s one of the most affordable ways to get a genuine Android TV experience on any TV.

Performance

Performance is adequate but not impressive. 4K HDR streaming on Netflix and YouTube works fine. The interface is slightly sluggish compared to premium devices — there’s a noticeable lag when launching apps and occasionally when navigating the UI. For casual streaming it’s fine. For power users, the slowdowns will frustrate.

What We Liked

  • Stock Android TV — full Google Play Store, no bloatware
  • Google Assistant — works well for search and smart home control
  • Chromecast built in — cast from any Android or Chrome device
  • 4K HDR + Dolby Audio — solid picture and sound for the price
  • Simple setup — plug in, sign into Google, done
  • Price — hard to beat sub-$50 for this feature set

What We Didn’t Like

  • Slow UI — noticeable lag compared to devices costing twice as much
  • Only 2GB RAM — apps reload frequently when switching between them
  • 8GB storage — fills up fast, no expandable storage
  • No Dolby Vision — HDR10 only
  • Remote feels cheap — flimsy build, no backlight
  • Software updates are slow — Xiaomi lags behind on Android TV updates

How It Compares

At $50 it’s outclassed on value by Walmart’s onn. 4K Pro, which adds Ethernet and USB for the same money, and on speed by the Chromecast with Google TV. Spend ~$10 more and the Fire TV Stick 4K Max is a clear step up. The Mi Box S only really wins if you specifically want a near-stock Android TV box at the absolute lowest price.

Verdict

The Mi Box S punches above its weight for the price, but you’ll feel the compromises in daily use. If $50 is your budget and you want stock Android TV, nothing beats it. If you can stretch to $60, the Fire TV Stick 4K Max is faster and better supported. If you stretch to $99, you’re in a different league entirely.

// FAQ
Is the Xiaomi Mi Box S any good?
It's a decent budget way to get stock Android TV with the full Google Play Store, but you'll feel the 2GB of RAM and a slightly sluggish interface. Fine for casual streaming, frustrating for power users.
Does the Xiaomi Mi Box S run stock Android TV?
Yes — it runs a near-stock Google TV / Android TV build with the full Play Store, Google Assistant, and Chromecast built in, with no heavy manufacturer skin.
Does the Mi Box S support Dolby Vision?
No, it tops out at HDR10, so you miss Dolby Vision that some rivals include at this price.
Xiaomi Mi Box S vs Fire TV Stick 4K Max?
For about $10 more the Fire TV Stick 4K Max is noticeably faster, adds Dolby Vision and Wi-Fi 6E, and gets better long-term software support.
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