Disposables come in all shapes and sizes these days. The best options aren’t always the ones with the most puffs. But if you’re going to use one, it kind of makes sense to go with a high puff count model – 40K or 50K is now the new top-end of the market.
And it’s got one really cool party trick: it runs two flavors in one device, thanks to its two can design. As far as I know, no one else has done this before.
Flum has been around the block a few times; it was one of the first ultra-successful disposable vape brands. But its new series – the UT Bar 50K – actually manages to serve up something different, something unique.
And in 2025’s disposable market, that is damn impressive.
Is it any good? Yes, and if you want to know what makes it so good – read on.
Flum UT Bar 50K Review
Design
The design of the Flum UT Bar 50K is pretty much the main event here. It’s part vape, part stress ball, thanks to its outer chassis being squeezable. The other benefit of this material is that it aids grip. I also really like its styling too.
The entire frontage is dominated by a large, circular display. It tells you how much juice is left, how many battery – just the essentials. And the design of the display is based on visual data; it kind of looks like a dial with tabs for battery life.
You don’t have to read anything, just look at the tabs and dial and you can immediately see how much juice and battery are left.
As with most high-puff disposables, the Flum UT Bar 50K is fully rechargeable – though it doesn’t come with a charger in the box. To top it up, simply connect a USB C charger and plug it in. The Flum UT Bar 50K fast charges, so you can top it up in as little as 10 minutes.
The draw is closer to a restricted DTL than a straight-up MTL one but it works great. You can adjust the airflow, although I found its stock setting to be perfectly fine.
And with the dual flavor, you simply click a button and you’re vaping a completely different flavor. Most of the flavors in the range are contrasted too, so you can get strawberry and banana or blue razz ice and triple berry. This makes for a much more interesting vaping experience.
Overall, the design is great. After using a few of these, I didn’t find any weak points or things that irritated me. The device is compact, has a lovely swishy feel to it, and it is dead simple to use. It also fits nicely in your pocket / purse / or handbag which makes it great for girls.
Flavors
I tried nearly the entire range and the flavor profiles were potent. Loads of dense notes that come through right off the bat. Flum has always been good with its flavor design and the Flum UT Bar 50K is no exception.
Standouts for me were, White Peach / Raspberry, Blue Razz Ice / Triple Berry, and Green Apple / Fuji Apple. These were all exceptional. I liked them so much I actually reordered some as soon as I’d completed my testing.
Flum UT Bar 50K Flavor Range
- Naked / Spring Water
- White Peach / Raspberry
- Watermelon / B-Pop
- Green Apple / Fuji Apple
- Banana Smoothy / Strawberry
- Mango / Strawberry
- Sour Fab / Citrus Ice
- Blue Razz Ice / Triple Berry
- Cool Mint / Icy Mint
- White Peach / Lemon Head
- View all flavors here.
Puff Count
The device comes rated for 50K puffs. As with most things, your mileage will vary depending on what power mode you have it in and how hard (and long) you’re hitting it.
Longer draws use more juice, so if you’re the kind of guy or gal that takes long, deep draws, you probably won’t hit the approximated puff count. You’ll still get north of 20k puffs in power mode and in and around 40K puffs in normal mode.
It’s kind of impossible to count that many puffs, so my general rule of thumb is to measure how long they last based on my rather heavy usage. I tested several of these units and got around a week from each – I used the standard mode too, not the power mode.
If you’re a lighter or moderate user, you’ll likely stretch things further – maybe 1.5 to 2 weeks. Again, your mileage will vary based on your usage patterns. But if I can get a week from one unit, that is impressive and it means lighter users (most people) will get more.
Things To Keep In Mind (Cons)
For cons (or things to keep in mind), it’s hard to pick fault with the Flum UT Bar 50K. It looks great and it is engineered to high standard. Each one I tested worked perfectly with no bugs or issues. They fired true and consistently and the flavor was always on point, right down to the last drop.
I’ve used Flum vapes in the past, so this is pretty much par for the course with these guys. The only issue I have with disposable vapes like this – and this applies to ALL disposables – is that they’re, well… disposable. Single use. And that isn’t great for your wallet or the environment.
I always recommend refillable pod vapes; they’re cheaper to run, they’re better for the environment and you can pick and choose whatever flavors you like. Me? I’m a Vaporesso XROS Pro man these days – and I have been since mid-way through 2024.
If you want the best flavor, battery life, and coil longevity, the XROS Pro is the one to get – it is leagues ahead of the competition.
Bottom Line?
The Flum UT Bar 50K is a brilliant little vape device that packs in a bunch of thoroughly novel features that not only make it useful and fun to use, but also help it stand out in an already super crowded market place.
I had a blast testing mine out, no complaints whatsoever. If you’re in the market for a rock-solid, unique disposable that’ll go the distance (and packs two flavors inside one vape), it’s the only game in town right now.
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