yocan uni vape

Yocan Uni Review

Yocan Uni Pro

The Yocan Uni Pro is a bigger, more advanced version of the Uni. It’s larger size is used to accommodate its other new feature, the addition of precise voltage control and an OLED screen to monitor the voltage level. In every other respect, it is similar to the Uni, since it retains the innovative shutter adjustment feature that allows it to use any sized cartridge. If you want a closer look at how the Uni Pro differs from the basic Uni, keep reading.

Kit and Accessories

  • Yocan Uni/Yocan Uni Pro
  • Magnetic 510 threaded connector
  • Micro USB charging cable

Compatibility: The Uni and Uni Pro are compatible with pre-filled THC and CBD oil cartridges.

Design and Features

Yocan Uni Design

The Uni definitely stands out from the crowded field of box style 510 batteries because of some unique design touches. One of the first that you’ll notice is the knob just beneath the opening of the cartridge receptacle. It is used to adjust a shutter in the receptacle opening that allows it to accommodate cartridges of any diameter. You just turn the knob until the shutter clamps down firmly on the cartridge so that it doesn’t rattle or shift around.

This works in conjunction with the other notable feature, a lever on the bottom of the battery that adjusts the cartridge chamber to three different heights. So, now you can choose how far you want the mouthpiece of your cartridge to stick out. The magnetic 510 connector is taller than normal in order to enable this feature. The combination of these features makes the Uni a truly universal—which is what Uni stands for—battery that can fit any type of cartridge.

Adding to the convenience, the Uni has a window that enables you to view the oil level of your cartridge regardless of the height you choose. The power button is placed easily within reach high on the device and the USB port is on the side, so it will stand upright while it’s charging. It is made from aluminum and zinc alloys so it feels quite durable and it has a nice heft to it as well. The Uni is a highly portable device even though the extra features make it a little taller and wider than other 510 batteries in this price range. It also has three voltage settings: 3.4V | 3.8V | 4.2V. However, you’ll probably stick with the highest one.

Yocan Uni Pro Design

The Uni Pro has an updated design to accommodate the brand new voltage controls and OLED screen. It is noticeably more angular than the original Uni with shallow ridges jutting out at the top and bottom of the device’s front end. Just below the top ridge lies the redesigned power button, which now has a square shape instead of the round shape of the original Uni. Below it is the OLED screen and at the bottom, just above the bottom ridge are the triangular voltage control buttons.

The bottom ridge also features another big change from the original because that is where the USB port is now located, whereas it is located high on one side of the basic Uni. Overall, the new look suits the Uni Pro, it is a more geometric design than before, which gives it a stronger design language. Plus the new USB port placement is an improvement since you can place the Uni Pro upright or on either side while it charges. It is about the same height as the original Pro so it is still an eminently portable device.

Yocan Uni Features

These ultra-portable 510 batteries aren’t exactly feature-rich. In fact, their simple operation and easy portability are part of their appeal. Aside from the adjustable cartridge receptacle, the Uni keeps things simple.

Yocan Uni Pro Features

Naturally, the addition of precise temperature control is the Uni Pro’s most prominent feature because it gives an already customizable 510 battery even greater customization.

How to Use

Yocan Uni

  1. Screw your cartridge onto the magnetic adapter and then place it into the cartridge chamber.
  2. Use the knob to adjust the shutter until it holds the cartridge firmly in place.
  3. (Optional) Use the lever to adjust the cartridge to the height you find most comfortable.
  4. Press the power button five times to turn on the device.
  5. Press the power button three times to select a voltage setting.
  6. Once the voltage has been reached, inhale from the mouthpiece.

Yocan Uni Pro

  1. Screw your cartridge onto the magnetic adapter and then place it into the cartridge chamber.
  2. Use the knob to adjust the shutter until it holds the cartridge firmly in place.
  3. (Optional) Use the lever to adjust the cartridge to the height you find most comfortable.
  4. Press the power button five times to turn on the device.
  5. Use the voltage controls to select a voltage level.
  6. Once the voltage has been reached, inhale from the mouthpiece.

Performance and Vapor Quality

Yocan Uni and Uni Pro Performance

The Uni and Uni Pro are capable of securely holding any cartridge used with them without any problems. The adjustable shutter does a great job of holding any cartridge nice and tight without any jiggling or looseness. Height adjustment is also great because it means that cartridges can be adjusted for comfort or stealth. The tallest height feels the most comfortable, but the lowest one is great for vaping low key. Heat up times are quick too, so no complaints on that front.

Yocan Uni Vapor Quality

While it’s nice in theory to have multiple voltage settings, in practice, it’s kind of pointless with the Uni. That is because many of these super small, ultra-portable vapes only have a single voltage setting, and with good reason. The reason is that they typically don’t have a lot of power, so multiple settings wouldn’t make any sense, they just output the highest voltage the battery is capable of producing.

So, with the Uni, there isn’t really any good reason to choose any other voltage besides the highest one. The only reason why you would want to do so is if you want to preserve battery life. Otherwise, any cartridge you use is best served by the highest voltage level. The preheat function is useful, but only with cartridges that have silica or ceramic wicks. I wouldn’t recommend that you use that function with cotton wicks because they could get burnt.

Yocan Uni Pro Vapor Quality

The addition of granular voltage control gives the Uni Pro a slight edge over the basic Uni. Now you can more precisely select the voltage level you want instead of having to rely on presets. That allows you to choose a voltage level that better fits your vaping style. That being said, you still get a great experience with the basic Uni, the Uni Pro simply gives you more options.

Battery Performance

Both the Uni and the Uni Pro have a capacity of 650 mAh, which is good for a battery this size. That is good for about 200 hits, though the number varies depending on the resistance of the cartridge used with it, the voltage setting, and the frequency of its use. When it is time for a recharge, you don’t have to wait long because it charges in under an hour.

The main downside to the Uni is that there isn’t an indicator to show you how much juice is left, so it can suddenly die on you if you don’t charge it regularly. The Uni Pro does have a battery level monitor integrated into the OLED screen, so it is more convenient than the Uni.

Uni or Uni Pro?

SInce there isn’t a big price difference between the two, the decision comes down to whether the additional features of the Uni Pro are worth it to you. If you want the maximum amount of customization and control over your 510 carts, then the Uni Pro is what you need. If you don’t mind giving up some control for more convenience, then the Uni should be your choice.

The only other advantage the Uni Pro has over the Uni is that it allows you to better monitor the battery level. Ultimately, you can’t go wrong with either model, so there won’t be any buyer’s remorse no matter which one you choose.

The Yocan Uni has a few tricks that other 510 batteries don’t, namely the ability to use any sized cartridge. Learn more in the complete review.

Yocan uni vape

WARNING: This product contains nicotine. Nicotine is an addictive chemical.

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The YoCan UNI Universal Portable Mod is a easily considered the most useful mod ever made, implementing an adjustable atomizer diameter dial;, 3 voltage output levels, and features an innovative preheating function to coax gentle and smooth draws. Formed from durable zinc-alloy, the chassis of the UNI vaporizer houses an impressive 650mAh rechargeable battery, designed to last the entire day between charges. Located at the top of the UNI is an atomizer diameter adjustment dial to change the diameter of the opening for the cartridge. Along the side of the UNI is a juice viewing window to see the remaining level of the cartridge, while underneath is a sliding adjustment knob to raise or lower the level of the magnetically attached atomizer.

YoCan UNI Universal Portable Vaporizer Mod Features:

  • Dimensions – 74.5mm by 33.9mm by 25.3mm
  • Integrated 650mAh Rechargeable Battery
  • Direct Voltage Based Output
  • 3 Power Levels
  • 10s Preheating Function
  • Zinc-Alloy Chassis Construction
  • Adjustable Atomizer Heigh/Diameter Settings
  • Patented Atomizer Diameter Adjustment Dial
  • Magnetic 510 Thread Adapter
  • LED Battery Life Indicator Light
  • Single Button Operation
  • Juice Viewing Window
  • 510 Threaded Connection
  • Available in Full Black, Stainless Steel, Black and White, Red, Blue


  • 1 UNI Box Mod
  • 1 User Manual
  • 1 Magnetic 510 Ring
  • 1 MicroUSB Cable

Please have a great understanding and technical knowledge on how to use this product in order to properly use it.

We highly recommend using an external battery charger for 18650 battery mods, as it helps with balanced charging and prolongs the life of the battery and mod, such as from worn out microUSB port. Never use damaged or improperly wrapped batteries with this device. We recommend all 18650/20700/21700 battery mods to use matching batteries with similar brand, model, and battery state at all times.

In order to use temperature control feature, it requires use of nickel, titanium, or stainless steel coils.

Note: There is always an inherent risk when using any rechargeable batteries at any time and under any circumstances. and any of’s parent and subsidiary companies are not held responsible for any damage for any modification of the batteries, chargers, devices and other products that we carry in any form or shape, this is including pack making. and any or all of’s parent and subsidiary companies will not be held responsible or liable for any injury, damage, or defect, permanent or temporary that may be caused by the improper use of a Li-ion (Lithium-ion), LiPo (Lithium-ion Polymer) and any rechargeable battery/batteries as well as chargers. Please have a greater understanding of the batteries/chargers you are using and how to care for them properly.

When working with Li-ion (Lithium-ion), LiPo (Lithium-ion Polymer) and any rechargeable cells, please be cautious and carefully use as they are very sensitive to charging characteristics and may explode or burn if mishandled. Please make sure that you have great knowledge on all rechargeable batteries before you use them. Always charge batteries at the clean and fire-proof surface. Never leave charging batteries unattended. If you see that there are visible damages on the batteries, please do not use. Always keep, store and transport the rechargeable cells in a safe, non-conductive container in a controlled environment

Do not use any rechargeable battery as well as any battery charger if any visible damage is present, as well as if the cell or charger has been stressed through mishandling, accidental or otherwise, even if damage may not be visible. Always store and transport rechargeable cells in a safe, non-conductive container in a controlled environment. Please dispose of battery cells, chargers or any other electronic devices in accordance with local laws and mandates

Shop the YoCan UNI Universal Portable Mod, implementing an adjustable cartridge port, 3 voltage output levels, and features an innovative preheating function. ]]>