Review Thumb

IUOC 4.0

CigarettesTemperature Adjustment
7.5 Sorry, your browser does not support inline SVG.
GOOD Heat180
0 /5 (0 Reviews)
USER AVG 0 /5 (0 Reviews)


Price $115USD
HeatStick Type Cigarettes
What’s Included in the Kit Device
Insert Filter Instructions
USB Cable
Cleaning Brush
Cleaning Tool
Mouthpiece Base
Silicone Mouthpiece x 4
Number of Consecutive Uses 13
Type of Blade N/A
Cycle Length 3 minutes
Charging Time 4 hour, 40 minutes
Features Temperature adjustment
Warranty Yes – terms unknown
Colors Blue


IUOC 4.0 is a bit different from most Heat-not-Burn devices. With this device you actually use traditional cigarettes, rather than HeatSticks. The idea behind this is that anyone who is a heavy smoker, or who just doesn’t feel as satisfied with HeatSticks, can use IUOC 4.0 to heat their usual cigarettes, instead of burning them. This reduces the amount of chemicals being released into the air. Moreover, since the tobacco plug is separate from the cigarette filter, you inhale highly filtered nicotine vapors instead of concentrated smoke. The focus here is on reducing harm, while still providing that familiar cigarette flavor.

IUOC, which stands for I Use Ordinary Cigarettes, has a really good device here. We especially like that it has a screen/ big indicator lights, as it makes it easy to use. Our only complaints? At $115USD the manufacturer is almost pricing themselves out of the market. UWOO YOWO, which also uses traditional cigarettes, is only $60USD. Big difference. Our other complaint is that you only get 13 consecutive uses out of IUOC 4.0. We would have liked to have more.

FEATURES: Temperature adjustment.

QUALITY: Very good.

DESIGN: I can’t stress this enough, IUOC 4.0 looks so much better in person than it does in pictures. In pictures it looks a bit awkward and cheap. In person it looks shiny, stylish, and well-made, albeit a bit boxy. The silicone mouthpiece is comfortable.







In your IUOC 4.0 kit you will find; the device, the manual, an Insert Filter Instruction booklet, a USB cable, a cleaning brush, a cleaning tool, the mouthpiece base, and 4 silicone mouthpieces.

Once you’ve unboxed your device you’ll want to check the battery status. To do so just click the control button once. The color the light turns will show you the level of charge remaining. Blue means 100%-75% remaining, green means 75%-50%, yellow means 50%-25%, and red means 25%-0% battery remaining. If your device has less than 75% charge, we recommend charging before use. Charging takes approximately 1 hour, 40 minutes.


Now that your IUOC 4.0 device is charged, you can begin using it. Here’s how;


  1. Set temperature
    • 9 settings (the higher the number the more intense)
    • To set, click the temperature adjustment buttons, numbers will change, click control button once to set
  2. Get a cigarette
    • Needs to be 8mm in diameter (this is most standard cigarettes (i.e. Marlboro))
  3. Break the filter off of the tobacco plug
  4. Put the filter in the top part of the heating chamber (the part that sticks out at the top)
    • NOTE* The manufacturer says that you can use the same filter up to 5 times
  5. Get a second cigarette
  6. Open the door on the bottom of the device
  7. Put the second cigarette in the bottom part of the heating chamber (inside the device) and close the door
  8. Click the control button 5 times to turn on
  9. Device will vibrate 3 times and rows of lights turn on one-by-one
  10. When heated, vibrate 3 more times and all rows lights are on
  11. When cycle ends, 3 more vibrations and lights turn off
  12. Remove cigarette from bottom part of device

To keep the device working well make sure you clean it regularly. To do so just remove the mouthpiece and mouthpiece base, open both the top and bottom doors, insert the cleaning brush and gently wipe away any grime. To clean the mouthpiece base put it in the cleaning tool and run it under warm water. You can also soak it in warm water with soap, then rinse afterwards. We recommend you soak and rinse the silicone mouthpieces as well.


The IUOC 4.0 device works with any cigarette that is 8mm in diameter. For example, Marlboro, Winston, Camel, etc.


IUOC 4.0 Manual PDF Download

IUOC 4.0 Insert Filter Instructions PDF Download


The IUOC 4.0 kit includes a warranty but its terms are unknown.


Kit Price $115USD
Diameters 116 x 48 x 24mm
Weight 142g
Weight with Packaging 370g
Material Aluminum alloy
Battery Type Li-On 2900 mAh
Power Input Type-C USB Cable
Maximum Blade Temperature 276°C/ 529°F
Charging Time 1 hour, 40 minutes
Time it Takes for Device to Heat 20 seconds
Length of Cycle 3 minutes
Number of Consecutive Uses 13
Features Temperature adjustment
HeatSticks Any cigarette that’s 8mm in diameter
Can Kit Accessories be Purchased Separately No
Colors Available Blue
Comparable To UWOO YOWO


Shenzhen YuKAN Technology Co. Ltd.
Location of Manufacturer
Shenzhen, China
Years in Business
Product Launch Year
Manufacturer Website
Impression of Manufacturer’s Website
Full Product Line that the Manufacturer Offers
IUOC 4.0


Where to Buy
We bought ours on AliExpress
Regions UWOO ships to
All countries where Heat-not-Burn is allowed (click here to check your country)
Regions the Manufacturer is Wholesaling to
Regions the Manufacturer Would Like to Wholesale to
Manufacturer Contact Information for Customer Service
Manufacturer Contact Information for Wholesalers
Wechat: iuoctech
Phone: +86-755-86545850
Manual Languages
Shipping and Delivery Time
Varies based on region

Don’t forget to comment and rate this device below!

What people say... Write your review
Order by:

Be the first to leave a review.

User Avatar User Avatar
Verified Member 👌
{{{ review.rating_title }}}
{{{review.rating_comment | nl2br}}}

Show more
{{ pageNumber+1 }}
Write your review

Your browser does not support images upload. Please choose a modern one