
Mecool KM2 Plus 2GB
Score: 71/100
RockTek GB1
Score: 78/100Rankings

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.

The Mecool KM2 Plus is a compact Android TV box delivering 4K HDR with Dolby Vision and Dolby Atmos, plus Google Assistant integration. Its modest 2 GB RAM, 100 Mbps Ethernet, and small internal storage limit performance for demanding users. It fits budget-conscious households needing basic 4K streaming and flexible storage options.
| Attribute | ![]() | ![]() |
|---|---|---|
8,294,400 pixelsbest | 8,294,400 pixelsbest | |
60 Hzbest | 60 Hzbest | |
2 GBbest | 2 GBbest | |
16 GBbest | — | |
| ↓ lower better | 0.009 kgbest | 0.259 kg |
| ↓ lower better | 216.2 mmbest | — |
2 countbest | 1 count |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(1) | ||
Supported Audio Formats | Dolby Atmos, Dolby Audio | Dolby Atmos, Dolby Digital Plus, Dolby Surround |
Connectivity(1) | ||
Bluetooth Version | 4.2 | Bluetooth |
Performance(2) | ||
CPU | Amlogic S905X4-B Quad-Core ARM Cortex-A55 | Realtek RTD1315C |
GPU | ARM Mali-G31 MP2 | ARM Mali-G57 |
Storage(1) | ||
Internal Storage (GB) | 16 GB | 16-32 GB |
Build & Design(2) | ||
Weight (kg) | 0.009 kg | 0.259 kg |
Dimensions (H×W×D) (mm) | 216.2 mm | 70x15x70 mm |
Ports(2) | ||
USB Ports (count) | 2 count | 1 count |
HDMI Version | HDMI 2.1 | 2.1 |


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

Professional reviewers commend the KM2 Plus for its Netflix 4K certification, robust HDR and Dolby Atmos support, and the added convenience of a voice remote and Chromecast integration. They note the expanded USB and microSD ports as a clear advantage over rivals like Chromecast. However, they criticize the unchanged 2 GB RAM, modest CPU upgrade, and the 100 Mbps Ethernet limitation, positioning the device as a solid basic streaming solution rather than a premium offering.
Everyday users appreciate the straightforward setup, smooth 4K@60fps playback, and the ability to expand storage with external drives or an SD card. Common complaints revolve around the limited 2 GB RAM causing occasional lag, the small 16 GB internal storage filling quickly, and the lack of gigabit Ethernet.

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.
“Played 4K@60fps with no problems”

“boost internal memory with SD card”

“4K videos will look great”

