The UT Bar Vapes collection is powered by Flum and features an array of delightful flavors. Their first model closely resembled a Flum Pebble in terms of the sculpted mouthpiece and 10ml capacity.
The UT Bar Pro was a significant upgrade in performance, with a solar system montage for animations and Boosted performance. The UT 50K disposable vape is their most unique design yet. Featuring unique design language and an incredible take on flavor control technology, the UT 50K wants to offer adult vapor consumers everything they need in one relatively compact package.
If you have wanted to fuse ripe berry and blue raspberry at varying levels in a disposable, your wait is over. These flavors are good. Until the next breakthrough, the UT 50K might well be Flum's Magnus Opus and a fawning love letter to great adult-friendly disposable vape flavors on the market today. At the very least, the powered by Flum UT 50K has to be considered the most sophisticated and powerful Flum vape ever.
UT 50K Disposable Vape Specs
- Nicotine Strength: 50mg
- Puff Count: 50,000 (Eco Mode), 25,000 (Turbo Mode)
- Flavor Control Vape
- Two Button Control Interface
- 12 Customizable Flavors
- 3 Levels Primary Flavor
- 4 Levels Secondary Flavor
- Type-C USB Charging
- 2.01" Display
- E-Liquid Level Monitoring Primary and Secondary Flavor
- On/Off Switch
- Airflow Control/Vape Modes Switch
- Dual Tank/Dual Mesh Coil Design
- On/Off Switch
- Airflow Control/Vape Modes Switch
- Dual Tank/Dual Mesh Coil Design
- Soft-Touch Squeezable Rear Surface for Fidgety Adult Vapers
UT 50K Pros and Cons
Pros: The UT 50K doesn't just allow you to merge flavor elements but fully formed vape flavors. Informative display screen and plenty of power. Outstanding vaping experience with great vapor production.
Cons: A lot going on for a one-time use device. A squeezable fidget gimmick is not the best use of space on a somewhat large device.
UT 50K Features
Flavors, reliability, and longevity have gotten so good that there is a bit of an arms race going on in the adult vapor consumer market. Selling the steak is no longer enough as so many disposable vapes are certified prime. Vaping.com carries a wide selection of disposable vapes as these are the most popular product with adult nicotine vapor consumers.
They are so convenient, satisfying, and flavorful that it is difficult for refillable devices to compete. Artificial tobacco flavor pods from Big Tobacco are simply blown out of the water on a level field of play. Declines in smoking rates suggest other items in the tobacco industry's portfolio are not much more competitive, which explains the full court press to ban adult appealing vapes like the UT 50K.
UT 50K Display
The UT Bar 50K has a great display with a ton of information. This is crucial as it has 12 customizable flavor settings. The first flavor listed is the primary flavor. It is always active, although there are three levels of flavor strength. You can track this on the left side of pie chart. The right side shows how much of the secondary flavor is in use. There are three power levels, and it can be shut off entirely.
There is also an outer ring of lights. These measure how much e-liquid is remaining and at the bottom center you can track battery life.
UT 50K Flavor and Boost Controls
There are two buttons to control the flavor settings. The top button sets the strength of the primary flavor, and the bottom button flips through power settings for the second flavor.

The switch at the bottom can be used to turn the device. There is also the 50,000-puff count Eco Mode (middle position) and the boosted mode with the most airflow.
UT 50K Appearance

The back of the UT 50K has an enormous squishy area for squeezing and fidgeting with the words "UT BAR" emblazoned on it. When displaying the settings, the circular front display is excellent. There are also showy graphics. The device is quite colorful, some might argue too colorful, with bold pastel design language.
UK 50K Vaping Experience
Like many disposable vapes, there is a lot going on for a one-time use device, but it packs a peerless experience right out of the box. This device offers a great user experience with responsive buttons, a large, easy-to-read display, and strong performance. Eco Mode delivers solid output, while Turbo Mode provides intense vapor production for a 50mg vape. The mix-and-match flavor settings work seamlessly, with clear differences in flavor profiles and no notable flavor leakage when using just the primary flavor tank.
Despite all the embellishments, this is a quick to charge disposable vape that is ideal for an adult vapor consumer on the go. The features can make things interesting, which is no small deal when dealing with a 50,000-puff disposable that is going to stick around for a while. Ethically though, this is a nearly mod sized one-time use device with a near 1000mAh battery. The Off Stamp X-Cube, Foger Mixpro, and Digiflavor BRK reuse the battery and screen, which seems to be a better approach in every way.
UT 50K Flavors
The Flum UT Bar collection excels in flavor design, offering disposable vapes that blend two unique flavors. Each device balances these flavors so they can be enjoyed individually or in combination, ensuring versatility and a great taste experience.
UT 50K Flavors by UT Bar
- Watermelon/B-Pop
- Banana Smoothy/Strawberry
- Green Apple/Fuji Apple
- Mango/Strawberry
- Sour Fab/Citrus Ice
- White Peach/Lemony Head
- Blue Razz Ice/Triple Berry
- Cool Mint Ice/Icy Mint
- Naked/Spring Water
UT 50K Flavors Reviewed
The powered by Flum UT 50K has a carefully curated selection of flavors. They needed to find blends that click perfectly when fused to together with 12 different levels of customization. As a result, you have a lot of vaping's greatest hits on their flavor sheet. But several are unique and delightful combinations that you won't find anywhere else.
Banana Smoothy/Strawberry UT 50K
The UT 50K offers a dual tank disposable vape featuring a classic banana and strawberry flavor combo. With creamy banana and sweet strawberry, users can customize the perfect "strawnana" vaping experience.
Green Apple/Fuji Apple UT 50K
Most disposable vapes focus on sour apple flavors, but sweeter red apple options are rarer. This vape balances the tartness of Granny Smith with juicy, fruity apple notes, offering a unique flavor experience for adult vapers.
Mango/Strawberry UT 50K
A perfect blend of sweet mango and tangy strawberry, this flavor offers a vibrant tropical taste. Enjoy them together for a bold burst or separately for a focused flavor experience.
Sour Fab/Citrus Ice UT 50K
A bold blend of tangy sour candy and icy citrus delivers a refreshing, zesty flavor. Enjoy together for a dynamic fusion or adjust the citrus for a pure sour vaping experience.
Watermelon/B-Pop UT 50K
Enjoy the refreshing sweetness of watermelon paired with the fizzy fun of B-Pop for a playful, nostalgic vape experience. Savor them together or separately to explore each unique flavor by manipulating the flavor settings.
White Peach/Lemon Head UT 50K
Enjoy the sweet elegance of white peach balanced with the bold tang of lemon for a refreshing and vibrant vaping experience. Adjust the flavors to suit your taste!
Blue Razz Ice/Triple Berry UT 50K
A vibrant mix of icy blue raspberry and rich berries delivers a refreshing, layered flavor with sharpness and depth—perfect for a cool, fruity experience.
Cool Mint/Icy Mint UT 50K
An innovative opportunity to compare classic mint flavors. The combination delivers a double dose of icy freshness, but each flavor stands strong on its own—perfect for those who crave a revitalizing burst to awaken the senses.
Naked/Spring Water UT 50K
Naked tastes like the flavorless Flum Pebble Clear. Spring Water adds a chilly and icy kick to a the mildly sweetened VG/PG Naked which is free of characterizing flavors.
Final Thoughts
The Off Stamp X-Cube with its reusable battery is less wasteful, but the UT 50K stands out for its impressive display and unique performance, despite a flawed squeezable section. For a lower nicotine option, the Lost Mary MT15000 Turbo offers great flavors and performance with a 20mg nicotine strength, lower than standard 50mg models.
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