The YiHi SX Mini G Class is the newest and most extraordinary high-tech mod device, crowned and powered by YIHI’s new SX550J chip. The G Class is a small, comfortably portable dual-18650 battery powered mod that delivers massive battery life and 200 watts of power backed by the YiHi SX550J. This chipset supports the most up-to-date temperature sensing updates from YiHi and receives full support from YiHi's SXi Q control PC software.
Wi-Fi Wireless Technology
Make your vaping experience smarter and more practical thanks to Wi-Fi connectivity that leaves traditional boundaries behind.
OTA (Over-the-Air) Firmware Update
You can update your device directly via Wi-Fi without the need to connect to a computer. Easily access the newest features, performance improvements, and optimizations.
Theme and Wallpaper Downloading
Personalize your device's interface according to your own style with rich theme and wallpaper options.
Multi-Language Support
Thanks to downloadable language packs, it supports multiple languages and offers a localized, more convenient experience for users in different regions of the world.
SX-PANEL Cloud Control System
SX-PANEL is a secure cloud-based control panel developed for the SXmini G Class V2. It brings advanced and customizable user experience by adding extra features to your device.
Thanks to the SX-PANEL cloud service, the device firmware can be updated wirelessly (OTA) over Wi-Fi. Additionally, you can easily perform the following operations with SX-PANEL:
Updating the firmware version
Installing new theme interfaces
Changing wallpapers
Renaming memory profiles
Key Features
Discover innovative features that combine advanced technology with superior performance.
4th Generation Temperature Control Technology
Equipped with ultra-high precision resistance measurement at the 0.0001Ω level, the 4th generation temperature control technology provides extremely accurate and stable temperature management.
You can choose between two different temperature control modes to suit your usage habits, and easily personalize your device thanks to simpler and more practical settings. This advanced system offers more consistent flavor, safe operation, and top-tier temperature control performance with every puff.
Smart Boost Intelligent Preheating
As one of the world's smartest preheating systems, Smart Boost activates preheating only when the coil needs it.
Analyzing the status of the coil instantly, this smart technology applies the ideal preheating precisely when required, preventing unnecessary energy consumption. Thus, while offering faster response time, more efficient performance, and longer battery life, it also contributes to a more balanced operation of the coil.
Waterproof Chip Design
The durability of the device is significantly increased thanks to the chip design featuring a special waterproof coating technology.
Capable of operating stably even in humid environments, this advanced structure provides a more reliable, long-lasting, and consistent usage experience by better protecting electronic components against external factors.
Technical Specifications
Chipset: YiHi SX750
Battery: 2 x 18650 Batteries (External)
Power Output: 10-200W
Dimensions: 94 × 47.7 × 34.3 mm
Temperature Control Range: 100°C - 300°C
Weight: 150 g
Charging: 5V / 2A (USB Type-C)
Static Current: <20μA
SXmini G Class V2 User Manual
The SXmini G Class V2 is a premium vape mod powered by the YiHi SX750J chipset, operating with dual 18650 batteries.
At first glance, it may seem complex due to its advanced features, but once you learn the basic operating logic, it is quite easy to use and highly customizable.
In this guide, you can find power settings, temperature control, Wi-Fi connectivity, and basic troubleshooting steps.
Powering On and Locking the Device
Insert two 18650 batteries, paying close attention to the correct polarity directions.
Press the Fire button 5 times to power on the device.
Press the Fire button 3 times to lock or unlock the device.
Tip:
For best performance and safety, it is recommended to use a matched pair of batteries of the same brand, model, and usage state.
Do not use damaged batteries.
Regularly check battery wraps and re-wrap or replace worn batteries before use.
Home Screen and Quick Controls
The joystick is the primary control unit of the device.
Press the joystick 3 times to enter Quick Control Mode.
In Quick Control Mode:
Up / Down: Adjusts the wattage value.
Press and hold Right: Changes the font color.
Press and hold Left: Changes the wallpaper (if supported).
Press the Fire button to exit Quick Control Mode.
Customization and Memory Profiles
You can customize your device according to different usage styles.
Clock Faces
Move the joystick to the left to switch between different clock themes.
The clock color and background can be personalized.
Themes
The device comes with 3 pre-installed themes.
New themes can be downloaded via Wi-Fi.
Memory Profiles (M1–M5)
You can save your different atomizer and coil configurations to memory.
For example;
M1 → MTL setup
M2 → DTL setup
M3 → RTA
M4 → RDA
You can switch to your desired profile with a single touch.
Power Curves and SXi-EQ (DIY Mode)
The SXmini G Class V2 supports advanced power curves.
Preset Modes
Hard
Soft
Neutral
Additionally;
You can create custom power curves (CWM) ranging from 3 to 10 seconds.
SXi-EQ (DIY Power Curve)
Thanks to the SXi-EQ system;
The power output can be adjusted individually for each 0.5-second interval.
This allows you to create a completely tailored vaping profile.
Temperature Control (TC Mode)
Supported wire types:
SS316L
Ni200
Titanium (Ti)
Custom TCR Settings
Important Recommendations
Always lock the resistance while the coil is at room temperature.
Ensure the cotton is completely saturated with e-liquid.
Preset Heat Profiles
Cold
Cool
Normal
Warm
Hot
These profiles can be fine-tuned as desired.
Main Menu
