Yocan UNI Pro Review: Versatile & Powerful 510 Battery

Overview
In the ever-evolving world of vaping, versatility and convenience are key. The Yocan UNI Pro aims to deliver both in a sleek, durable, and highly customizable package. Designed to accommodate a wide range of 510-thread oil cartridges, the UNI Pro stands out with its adjustable voltage settings, OLED display, and patented height and diameter adjustment system.
The Yocan UNI Pro redefines versatility with its adjustable voltage, patented cartridge fit system, and sleek OLED display, delivering a premium oil vaping experience.
— Black Note
This device isn’t just about looks—it’s packed with practical features, including a 10-second preheat function to prime your cartridge for smooth, flavorful hits.
The Yocan UNI Pro is an upgraded version of Yocan’s original UNI series, known for its compatibility with oil and concentrate cartridges of varying sizes. With its 650mAh battery, adjustable voltage control (2.0V to 4.2V), and magnetic 510-thread adapter, the UNI Pro allows users to fine-tune their vaping experience. Its compact size, portability, and innovative design make it a popular choice among oil cartridge users.
Features and Specs

Specifications
- Adjustable Voltage Control: Fine-tune the voltage from 2.0V to 4.2V in 0.1V increments for precise performance.
- 650mAh Rechargeable Battery: Long-lasting battery life with USB Type-C charging for quick recharges.
- OLED Display: The screen shows real-time voltage, battery level, and mode settings.
- Height and Diameter Adjustment: Accommodates various cartridge sizes with a patented system for a snug fit.
- Magnetic 510-Thread Adapter: Ensures secure and hassle-free cartridge connection.
- 10-Second Preheat Function: Warms up the coil for a smoother, more consistent hit.
- Durable Zinc Alloy Construction: Offers a premium feel while ensuring durability.
What’s in the Box?
Each Yocan Uni Pro includes:
- 1 x Yocan UNI Pro Vaporizer
- 1 x Magnetic 510 Adapter
- 1 x USB Type-C Charging Cable
- 1 x User Manual
Design and Appearance

The Yocan UNI Pro has a compact box mod design, measuring 75.5 mm x 36.5 mm x 25.7 mm and weighing just 51 grams. Its rubberized coating ensures a comfortable grip, while the metal construction adds a layer of durability. The C-frame design makes it lightweight yet sturdy, ideal for on-the-go vaping.
Yocan Uni Pro Functionality

Using the Yocan UNI Pro is straightforward, with intuitive controls:
- Power On/Off: Five clicks of the fire button.
- Adjust Voltage: Use the up/down buttons below the screen.
- Preheat Mode: Double-click the fire button to activate a 10-second preheat cycle.
- Adjust Cartridge Height: Use the side-slider to lift or lower the cartridge.
- Secure Cartridge Diameter: Turn the notched dial to tighten the collar around the cartridge.
One of the standout features of the UNI Pro is its patented height and diameter adjustment system. The notched dial at the top of the device allows users to close a collar around the cartridge, eliminating any wobbling. Additionally, a side-slider mechanism adjusts the cartridge’s height, ensuring a perfect fit for both short and tall carts.
The OLED screen is bright and easy to read, even in direct sunlight. Unlike many budget devices that rely on color-coded LEDs for voltage settings, the UNI Pro provides clear numerical readouts. Adjusting the voltage is simple, thanks to the up and down buttons located below the screen.
Yocan Uni Pro Performance

The ability to adjust voltage in 0.1V increments gives users precise control over their vaping experience. For thicker oils, higher voltage settings (around 3.8V–4.2V) work best, while thinner oils perform well at lower voltages (2.5V–3.0V). This flexibility ensures that users can enjoy the full flavor profile of their oils without compromising on vapor production.
The 10-second preheat function is a useful addition, especially for oils that tend to thicken in colder temperatures. By gently warming the coil before inhaling, the UNI Pro ensures smooth and consistent vapor with every puff.
Thanks to its variable voltage settings and magnetic adapter, the UNI Pro delivers excellent flavor and dense vapor production. Whether you prefer light, flavorful hits or thick clouds, this device can cater to your preference.
Yocan Uni Pro Battery Performance

The 650mAh internal battery offers impressive longevity, lasting through several sessions on a single charge. Charging is quick and efficient with the included USB Type-C cable, taking approximately 60 minutes for a full recharge.
For added convenience, the battery indicator on the OLED screen provides real-time updates, so you’ll always know when it’s time to plug in.
Pros and Cons
Pros:
- Highly customizable with adjustable voltage and cartridge fit.
- Bright OLED display for clear voltage and battery readings.
- Durable, ergonomic design with a comfortable grip.
- USB Type-C charging for fast recharges.
- Compatible with a wide range of 510-thread cartridges.
- Preheat function for smoother, more consistent hits.
Cons:
- Only one magnetic adapter included in the kit.
- Slightly larger than standard pen-style batteries.
- The rubberized coating, while comfortable, may wear over time.
Order the Yocan Uni Pro
To shop Yocan Vaping Devices, visit Blacknote.com and make sure to explore our wide range of vaping products.
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FAQ’s
What makes the Yocan UNI Pro unique?
The UNI Pro features adjustable voltage control, a patented cartridge height and diameter adjustment, and a 10-second preheat function, making it one of the most versatile 510-thread devices on the market.
How long does the Yocan UNI Pro battery last?
The 650mAh battery lasts approximately 1-2 days of moderate use and recharges fully in about 1 hour via USB Type-C.
What cartridges are compatible with the Yocan UNI Pro?
The UNI Pro works with 510-thread cartridges of various heights and diameters, thanks to its adjustable settings and magnetic adapter.
How do I adjust cartridge size on the Yocan UNI Pro?
Use the adjustment dial to fit the diameter of your cartridge, and the sliding switch to raise or lower the cartridge height for a snug fit.
How does the preheating function work on the Yocan UNI Pro?
Press the fire button twice to activate the 10-second preheat mode, which prepares the coil for smooth and even vapor production.
Can I use the Yocan UNI Pro for oils and concentrates?
Yes, the UNI Pro is compatible with most pre-filled or refillable oil and concentrate cartridges that use a 510-thread connection.
What safety features does the Yocan UNI Pro have?
The device includes:
- Short-Circuit Protection: Prevents malfunction during use.
- Overheat Protection: Ensures safe operation during extended sessions.
- Low Voltage Protection: Alerts when the battery is low.
Key Takeways
The Yocan UNI Pro is a versatile and reliable 510-thread battery that excels in both performance and customization. Whether you’re a casual user or a seasoned vaper, the UNI Pro’s features—like adjustable voltage, a bright OLED screen, and a patented cartridge fit system—ensure a top-tier vaping experience.
If you’re looking for a high-quality, affordable oil cartridge battery, the Yocan UNI Pro is a solid choice. Ready to upgrade your vaping experience? Try the Yocan UNI Pro today!
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