Formuler Z12 Ultra
Score: 79/100
RockTek G2 Chromecast
Score: 80/100Rankings
The RockTek G2 is a compact 4K UHD streaming box running a modified Android 14, offering Wi-Fi 6, Gigabit Ethernet and full Dolby Vision, HDR10+ and Dolby Atmos support. Its non-certified Android fork and thermal throttling limit reliability for power users, though it remains a strong budget alternative. Best suited for cost-conscious users upgrading non-smart TVs who value extensive codec support and Ethernet connectivity.
The Formuler Z12 Ultra is a high-end Android 12 streaming player offering 4K 60 fps video with Dolby Vision, HDR10+ and Dolby Atmos, backed by 4 GB RAM and 128 GB storage. Its modest CPU and limited USB ports may fall short for power users. It best suits IPTV enthusiasts and home-theater setups with fast Wi-Fi 6E or gigabit LAN.
| Attribute | | |
|---|---|---|
8,294,400 pixelsbest | 8,294,400 pixelsbest | |
60 Hzbest | 60 Hzbest | |
4 GBbest | 4 GBbest | |
128 GBbest | 32 GB | |
| ↓ lower better | 0.46 kgbest | — |
| ↓ lower better | 258.8 mmbest | — |
| ↓ lower better | — | 10 Wbest |
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, MPEG-1 Layer 1/2/3 (2-CH), MPEG-2 Layer 1/2, HE-AAC v1/v2, DTS | Dolby Atmos, DTS-HD |
Connectivity(2) | ||
Wi‑Fi Standard | Wi‑Fi 6E | Wi‑Fi 6 |
Bluetooth Version | 5.2 | 5.0+ |
Performance(2) | ||
CPU | Realtek RTD1319C quad-core | Amlogic S905X4‑K |
GPU | Mali-G57 MC1 | Mali‑G31 MP2 |
Storage(1) | ||
Internal Storage (GB) | 128 GB | 32 GB |
Build & Design(1) | ||
Dimensions (H×W×D) (mm) | 258.8 mm | 25.4x114.3x114.3 mm |
Ports(1) | ||
USB Ports (count) | 2 count | 1 count |
Products in the top-left offer the best value (high score, low price).
Professional reviewers view the Z12 Ultra as a significant upgrade over the Z11 Pro, highlighting its faster Realtek RTD1319C processor, doubled 128 GB storage, Wi-Fi 6E support, and expanded HDR and audio codec suite. They commend the inclusion of QMS, Dolby Vision, and Dolby Atmos, positioning the device as a premium choice for high-end IPTV and home-theater setups.
Limited user feedback suggests most owners are satisfied with the device's performance and feature set, especially the pre-installed IPTV app and voice-controlled remote. However, a subset of users expressed a wish for a more powerful CPU and additional RAM, indicating the device may fall short for enthusiasts seeking top-tier hardware.
“hoped also on better specs. Better cpu and 6gb ram,”
“Excellent 4K@60fps playback with Dolby Vision/HDR10+/AV1 support and auto frame rate/color space matching”
“Modified Android 14 lacks Google certification, leading to inconsistent Play Store/Widevine L1/Netflix 4K support.”
Professional reviewers commend the Rocktek G2 for its impressive 4K HDR and AV1 decoding, fast Wi-Fi 6 networking, and convenient voice-enabled remote, positioning it as a strong budget alternative to premium boxes. However, they caution that the non-certified Android fork, thermal throttling, and HDMI mislabeling diminish its appeal for power users who need guaranteed app certification and advanced gaming features.
Consumers generally appreciate the G2's ability to deliver smooth 4K streaming, reliable casting, and high-quality audio without breaking the bank. Common praise centers on its codec support and network performance, while recurring complaints focus on software update irregularities, remote connectivity issues, and occasional heating during long sessions.
