
Amazon Fire TV Cube
Score: 81/100
Xiaomi TV Stick 4K 2nd Gen Black
Score: 80/100Rankings

The Amazon Fire TV Cube is a hands-free 4K streaming box with a powerful octa-core CPU and full HDR/Dolby Atmos support. Its bulkier form factor, lack of gaming-focused features and occasional ad-laden UI are trade-offs. Ideal for Alexa-centric homes that value HDMI switching and high-speed Wi-Fi 6E.

Xiaomi TV Stick 4K (2nd Gen) is a compact dongle with Wi-Fi 6, a powerful 2.5 GHz CPU and Dolby Vision/Atmos support, running Google TV. It lacks Ethernet and AI upscaling, which may affect network stability and upscaling quality. Great for portable, budget-friendly 4K streaming on the go.
| Attribute | ![]() | ![]() |
|---|---|---|
2 GBbest | 2 GBbest | |
16 GBbest | 8 GB | |
60 Hzbest | 60 Hzbest | |
| ↓ lower better | 513 g | 28 gbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(2) | ||
Processor | Octa-core 2.0 GHz | Quad-core Cortex-A55 |
GPU | ARM Mali G52-MP2 800 MHz | ARM G310 V2 |
Storage(1) | ||
Internal Storage (GB) | 16 GB | 8 GB |
Software(1) | ||
Operating System | Fire OS 7 | Google TV |
Audio(1) | ||
Supported Audio Formats | Dolby Atmos, Dolby Audio/MAT, DTS, DTS-HD, AAC-LC, AC3, eAC3, FLAC, MP3, PCM/Wave, Vorbis | DTS:X, DTS HD, Dolby Atmos, MP3, AAC, RM, FLAC |
Connectivity(2) | ||
Bluetooth Version | 5.0 | 5.2 |
Wi‑Fi Standard | Wi-Fi 6E | Wi‑Fi 6 |
Controls(1) | ||
Remote Type | Alexa Voice Remote | Voice remote |
Build & Design(2) | ||
Weight (g) | 513 g | 28 g |
Dimensions (W×H×D) (mm) | 86×77×86 mm mm | 90 x 40 x 165 mm mm |

Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the Fire TV Cube for its powerful octa-core CPU, comprehensive HDR and Dolby Atmos support, and the unique hands-free Alexa with HDMI input that simplifies switching between streaming and live sources. However, they note the mediocre SDR upscaling, lack of gaming-focused features like VRR/ALLM, and a bulkier form factor compared to slimmer competitors.
Everyday users consistently highlight the convenience of hands-free Alexa, rapid app launches, and excellent 4K/Dolby Vision picture quality, while expressing frustration over intrusive ads, occasional voice-recognition hiccups, and sub-par upscaling of non-4K content.

“pretty much the same spec as we usually get on larger TV boxes”

“absolutely crazy smooth”




Professional reviewers praise the Xiaomi TV Stick 4K (2nd Gen) for delivering performance on par with much larger TV boxes, highlighting its smooth interface and substantial CPU/GPU improvements, while noting the lack of AI upscaling as the main drawback.
Everyday users consistently commend the device for lag-free 4K streaming, portable form factor, and responsive UI, with few complaints aside from the missing AI super-resolution capability.