Flavor is every vaper’s first sensory memory — and the key measure of any device’s quality. Since our founding, YiHi has stayed true to its philosophy: “Customer first, innovation for the customer.” For us, flavor is the soul of chip development. The Birth of SXi-Q — Effortless Multi-Profile Switching In October 2015, alongside the launch of the SXmini ML Class, YiHi introduced its self-developed SXi-Q system. For the first time, users could create five fully customizable profiles (C1–C5). Whether switching between different atomizers or adapting to various e-liquids, users could fine-tune settings on a PC and upload them to the device — delivering a “one device, many flavors” experience. Intelligent Taste Curve — Drawing the Path of Flavor In May 2016, with the debut of the SXmini Q Class, SXi-Q entered a new era with Intelligent Taste Curve (SXi-EQ) technology. Select SXi-EQ modein the software and choose from five flavor curves (S1–S5). Each curve features 20 adjustable power pointsacross a 10-second heating cycle, allowing precise control in 5-second intervals. From a gentle preheat to an explosive instant ramp-up, users can design their own flavor curveand save it directly to the device. The system also offers pre-set classic modes: Soft: Gradual 75% → 100% power for a smooth, delicate vape. Hard / Strong: 125% → 100% ramp-down for instant vapor and flavor burst. Neutral: Balanced and consistent for all-day vaping. Flavor Beyond Just “Good” or “Bad” With SXi-EQ, flavor is no longer a subjective “good” or “bad” — it becomes measurable, designable, and repeatable. Like mixology or baking, it invites vapers to be part of the…

In the vape industry, performance isn’t just about stacking hardware specs — it’s about smart, flexible software innovation. As a pioneer of China’s original vape chip technology, YiHi started a new era of firmware upgrade and customization in 2014, driving the industry into a new age of high-performance cloud chasing. GUI Software SXi-Q — The Ultimate Upgrade & Control Tool YiHi’s self-developed graphical interface software, SXi-Q, bridges the gap between users and the chip. With SXi-Q, both brands and end-users can easily upgrade firmware and fine-tune multi-dimensional parameters, keeping devices at peak performance while delivering a truly personalized vaping experience. From 30W to 60W — A Milestone in Power Evolution In 2014, YiHi introduced the SX350 30W — marking the rise of China’s original vape chip. Thanks to SXi-Q’s upgrade capability, the SX350 evolved step-by-step: 35W power boost 40W & 50W performance expansion Reaching 60W maximum output This upgrade journey not only extended the product’s life cycle but also delivered more stable and powerful output, fueling the growth of the cloud-chasing market. Intelligent Flavor Curves — Your Personal Flavor Master Upgrades aren’t just about higher wattage. YiHi made flavor optimization a core mission. Through intelligent flavor curve control, our chips precisely manage heating power and temperature changes, releasing the full potential of your e-liquid. The result? A smooth, layered, and rich vaping experience. Why Upgradeable & Customizable Matters Always Evolving, Never Outdated Firmware upgrades keep your device ahead of the curve — no forced hardware obsolescence. Tailored to Every Vaper From beginners to enthusiasts, adjustable flavor and power settings let everyone find their perfect vape. Boost Brand Competitiveness Brands can respond…