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Yocan UNI Pro Plus Review: Premium 510 Battery Worth $45?

Is the Yocan UNI Pro Plus worth upgrading to? Our review tests the 0.1V precision control, 900mAh battery, and OLED display against competitors.

By The Vaper's Guide Team
(Updated December 24, 2025)
UNI Pro Plus

Yocan

UNI Pro Plus

4.4
$44.99
Check Price

Our Verdict

The Yocan UNI Pro Plus delivers precision voltage control for discerning vapers who want exact customization of their experience. The 0.1V increment adjustments and clear OLED display make it easy to dial in the perfect setting, while the adjustable cartridge holder ensures universal compatibility. An excellent mid-range choice for those who prioritize control over gimmicks.

Pros

  • Precision voltage control in 0.1V increments
  • High-definition OLED display with clear readouts
  • Adjustable cartridge holder fits any size
  • Upgraded 900mAh battery capacity
  • USB-C fast charging
  • Premium color options with refined aesthetics

Cons

  • No animated display like UNI 3.0 Plus
  • Smaller battery than flagship 1100mAh models
  • Box mod form factor less portable than pens

Overview

The Yocan UNI Pro Plus represents the precision-focused branch of Yocan's popular UNI series. While the UNI 3.0 Plus emphasizes entertainment features with its animated display and games, the UNI Pro Plus targets vapers who prioritize exact control over their vaping experience. With voltage adjustable from 2.0V to 4.2V in precise 0.1V increments, this box mod offers the finest tuning available in a universal cartridge battery.

The device pairs this precision with an upgraded 900mAh battery (up from the standard 650mAh), OLED display for crystal-clear readings, and Yocan's signature adjustable cartridge holder that accommodates virtually any 510 cartridge on the market.

Design & Build Quality

The UNI Pro Plus showcases refined aesthetics with a sleek zinc alloy construction. The rectangular OLED display sits prominently on the front face, providing high-definition clarity for voltage and battery readings. The overall design feels premium without being ostentatious - it's a tool designed for serious users.

Color Options

The UNI Pro Plus is available in sophisticated finishes:

  • Onyx
  • Sand
  • Sky Blue
  • Sage
  • Burgundy

These earth-toned and muted colors give the device a more refined, mature appearance compared to flashier alternatives.

Build Highlights

  • Durable zinc alloy construction
  • High-definition rectangular OLED screen
  • Height adjustment lever for cartridge positioning
  • Sliding width mechanism for universal fit
  • Ergonomic fire button placement
  • USB-C charging port

Features

Precision Voltage Control

The standout feature of the UNI Pro Plus:

  • Voltage range from 2.0V to 4.2V
  • Adjustable in precise 0.1V increments
  • 23 distinct voltage settings available
  • Fine-tune to match specific cartridges
  • Optimize for flavor vs. vapor production
  • Real-time OLED display feedback

OLED Display

Clear information at a glance:

  • High-definition rectangular screen
  • Current voltage level clearly displayed
  • Battery percentage indicator
  • Excellent visibility in any lighting
  • No guessing about settings

Adjustable Cartridge System

Universal compatibility through dual adjustment:

  • Width adjustment: Sliding mechanism fits any diameter
  • Height adjustment: Lever accommodates various lengths
  • Works with slim pens to wide tanks
  • Pre-filled and refillable cartridge support
  • Secure grip prevents wobble

Pre-Heat Function

Prepare thick oils for optimal performance:

  • Gently warms cartridge before use
  • Improves flow of viscous concentrates
  • Better first-puff experience
  • Prevents dry hits

USB Type-C Charging

Modern charging technology:

  • Fast charging speeds
  • Reversible connector
  • Universal cable compatibility
  • Stable power delivery

Performance

Voltage Precision

The 0.1V increments make a real difference:

  • Dial in exact preferred settings
  • Subtle adjustments for different cartridges
  • Low settings (2.0V-2.4V) for maximum flavor
  • Mid settings (2.5V-3.2V) for balanced experience
  • High settings (3.3V-4.2V) for cloud production
  • Match voltage to oil viscosity

Battery Life

The 900mAh capacity upgrade delivers:

  • Approximately 38% more than standard 650mAh
  • One to two days of use per charge
  • 150-300+ puffs depending on settings
  • Reliable for daily carry
  • USB-C for quick top-ups

Cartridge Compatibility

The adjustable system ensures:

  • Universal 510 thread compatibility
  • Any cartridge diameter works
  • Various cartridge heights accommodated
  • No compatibility concerns
  • Future-proof design

Vapor Quality

Consistent, controlled performance:

  • Precision voltage prevents burning
  • Optimal heating for any oil type
  • No hot spots or uneven heating
  • Smooth, flavorful vapor
  • Customizable to preference

UNI Pro Plus vs. UNI 3.0 Plus

FeatureUNI Pro PlusUNI 3.0 Plus
Battery900mAh1100mAh
DisplayOLED (readings)HD animated
Voltage2.0V-4.2V (0.1V steps)Adjustable (+/-)
GamesNoYes (Tetris, Evadex)
ThemesNo3 options
Price$44.99$50.00
FocusPrecision controlEntertainment features

Choosing Between Them

Choose UNI Pro Plus if:

  • Precise voltage control is essential
  • You prefer clean, functional design
  • You want lower price point
  • You don't need display animations
  • You value substance over style

Choose UNI 3.0 Plus if:

  • You want maximum battery life
  • Animated display appeals to you
  • Built-in games are a plus
  • You prefer the most features

Usage

Basic Operation

  1. Charge fully before first use
  2. Attach cartridge to device
  3. Adjust width and height for secure fit
  4. Power on with 5 rapid clicks
  5. Set voltage with +/- buttons (in 0.1V steps)
  6. Press fire button and inhale

Finding Your Perfect Voltage

Oil TypeRecommended RangeWhy
Thin oils2.0V - 2.6VPrevents burning
Standard2.7V - 3.4VBalanced performance
Thick oils3.5V - 4.2VEnsures vaporization

Using Pre-Heat

  1. With cartridge attached, activate pre-heat
  2. Device gently warms the cartridge
  3. Wait for cycle to complete
  4. Take your first puff
  5. Especially useful for cold environments or thick oils

Who Should Buy

Ideal For

  • Vapers who demand precise control
  • Users with multiple cartridge types
  • Those who appreciate clean aesthetics
  • People who want upgraded battery life
  • Flavor enthusiasts who fine-tune settings

May Not Be Right If

  • You want the biggest possible battery
  • Animated displays and games appeal to you
  • Ultra-compact size is essential
  • You prefer preset voltage levels

Care & Maintenance

  • Clean OLED display with soft cloth
  • Keep 510 connection free of debris
  • Store in cool, dry location
  • Use included or quality USB-C cable
  • Avoid extreme temperatures

Pros & Cons

Pros:

  • Industry-leading 0.1V precision control
  • Clear OLED display
  • Universal cartridge compatibility
  • Upgraded 900mAh battery
  • Premium build quality
  • Refined color options

Cons:

  • No animated display or themes
  • Battery smaller than top-tier models
  • Less compact than pen styles

Verdict

The Yocan UNI Pro Plus excels as a precision instrument for 510 cartridge vaping. While it lacks the entertainment features of its UNI 3.0 Plus sibling, it compensates with unmatched voltage control - the ability to adjust in 0.1V increments from 2.0V to 4.2V gives users 23 distinct settings to find their perfect experience.

The 900mAh battery represents a meaningful upgrade from standard batteries, the OLED display provides crystal-clear information, and the adjustable cartridge holder ensures you'll never face compatibility issues. At $44.99, it's priced competitively for its feature set.

If you're a vaper who values precise control and clean functionality over flashy features, the UNI Pro Plus is an excellent choice. It's a serious tool for users who want to optimize their experience down to the finest detail.

Related: Yocan UNI Pro Plus Manual

Specifications
Battery Capacity900mAh
Voltage Range2.0V - 4.2V
Voltage Increments0.1V
Threading510
DisplayOLED
ChargingUSB Type-C
Cartridge CompatibilityAdjustable width/height
MaterialZinc alloy

Frequently Asked Questions

Is the Yocan UNI Pro Plus worth it?

Yes, if you value precision control. The 0.1V adjustments let you fine-tune your experience in ways preset batteries can't match, and the 900mAh battery is a solid upgrade.

How is the UNI Pro Plus different from UNI Pro 2.0?

The UNI Pro Plus has a larger 900mAh battery (vs 650mAh), zinc alloy construction, and the same 0.1V precision control. Choose Plus for better battery life.

What voltage should I use on the UNI Pro Plus?

Start at 2.0V-2.6V for thin oils and maximum flavor, 2.7V-3.4V for standard cartridges, and 3.5V-4.2V for thick distillates.

How long does the UNI Pro Plus battery last?

The 900mAh battery provides 1-2 days of regular use, or 150-300+ puffs depending on your voltage settings.

Does the UNI Pro Plus fit all cartridges?

Yes, the adjustable width dial and height lever accommodate virtually any 510-threaded cartridge on the market.