
RockTek GB1
Score: 78/100
Xiaomi TV Stick 4K 2nd Gen Black
Score: 80/100Rankings

The Xiaomi TV Stick 4K (2nd Gen) is a pocket-sized streaming dongle delivering 4K HDR with Dolby Atmos and Wi-Fi 6. Its trade-offs are limited internal storage and the absence of a wired Ethernet connection. It best serves travelers and secondary-TV setups where size and cost are paramount.

The RockTek GB1 is a Google-certified 4K streaming dongle that delivers Dolby Vision and Dolby Atmos in an ultra-compact form factor. It needs a USB-C hub for full HDR output and can run hot under heavy use, and its storage is limited. Best for minimalists and travelers who want a pocket-sized Google TV experience.
| Attribute | ![]() | ![]() |
|---|---|---|
8,294,400 pixelsbest | 8,294,400 pixelsbest | |
60 Hzbest | 60 Hzbest | |
2 GBbest | 2 GBbest | |
— | 8 GBbest | |
| ↓ lower better | 0.259 kg | 0.028 kgbest |
1 countbest | 1 countbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(1) | ||
Supported Audio Formats | Dolby Atmos, Dolby Digital Plus, Dolby Surround | MP3, AAC, RM, FLAC, DTS:X, DTS HD, Dolby Atmos |
Connectivity(1) | ||
Bluetooth Version | Bluetooth | 5.2 |
Performance(2) | ||
CPU | Realtek RTD1315C | Quad-core Cortex-A55 |
GPU | ARM Mali-G57 | ARM G310 V2 |
Storage(1) | ||
Internal Storage (GB) | 16-32 GB | 8 GB |
Build & Design(2) | ||
Weight (kg) | 0.259 kg | 0.028 kg |
Dimensions (H×W×D) (mm) | 70x15x70 mm | 40x90x165 mm |

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

Professional reviewers commend the GB1 as a high-performance Android TV mini box that delivers stunning 4K HDR with Dolby Vision and Dolby Atmos, thanks to its Realtek RTD1315C chipset and Mali-G57 GPU. They highlight its future-proof codec support (including AV1) and ultra-compact design, while noting the need for a USB-C hub for full HDR output and occasional heating during intensive gaming.
Everyday users praise the seamless Google Assistant voice control, pocketable size, and reliable 4K streaming on popular services, but commonly complain about the requirement for a USB-C hub, heating under load, limited internal storage, and the basic plastic build.

“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 its lag-free 4K streaming, portable form factor, and responsive UI, with few complaints aside from the missing AI super-resolution capability.