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Uwell Crown 2 Review

Bill Herbst
June 15, 2016

Intro

As far as I’m concerned, no other new product release over the past year has been as eagerly anticipated as Uwell’s Crown II (or Crown 2) Sub-Ohm Clearomizer Tank. The expectations surrounding this new version of the highly-rated Uwell Crown have been extraordinarily high within the enthusiast vaping community.

Among reviewers and review sites (including this one), after its debut in 2015, the original Crown Tank was consistently rated among the top sub-ohm clearomizer tanks, and frequently as the very best in that category of tanks.

I don’t know how much pressure Uwell was under to release a Version 2 of the Crown, but they took their time and were very thorough in the redesign. The Crown 2 Tank addresses a wide range of requests for changes and improvements from both users in the marketplace and designers/engineers in-house at Uwell. Implementations of those changes went through a long period of testing and refinement.

Now the Uwell Crown 2 is ready, in production, and being shipped to vendors. While still in pre-order on most vendor sites as of the writing of this review (June, 2016), the tank will soon be widely available. Let’s see if the new Crown 2 lives up to our hopes.

Specifications

Specifications

  • 510 Threaded
  • 24 mm Diameter
  • 100% Stainless Steel Construction
  • 4 mL Eliquid Capacity
  • Quartz Glass Tank
  • Anti-Leaking Top Fill Design (with optional bottom-flll)
  • Juice Tank Locking Screw
  • Improved Chimney Design
  • Dual Adjustable Bottom Airflow Slots
  • Improved Coil Heads
  • Conical Positive Connector
  • Smoother Airflow
  • Three Coil options
  • 0.25Ω – larger clouds
  • 0.5Ω – balanced clouds and flavor
  • 0.8Ω – best flavor
  • long lifespan
  • lower eliquid consumption
  • Delrin Insulated Drip Tip
  • Removable Drip Tip

Notable Remarks

Using the Uwell Crown II

Uwell Crown 2 0.25 Coil

I own nine of the original Crown tanks among my large and diverse inventory of sub-ohm clearomizer tanks, so it’s obviously one of my favorites. I was never in love with the aesthetics of the original version; it wasn’t much of a looker. The tank’s performance, however, was (and is) superb, and it was among the earliest sub-ohm tanks to provide an easy top-fill.

Besides performance, the original Crown was extremely versatile. The dual-coil stainless steel heads could be used in both wattage and temp control modes, and the heads could be rebuilt as well. In addition, the original Crown gave a great vape over a wide range of power, from 50–100+ watts (depending on the coil head).

Aesthetics of the new tank are much sleeker and more attractive than the original. Gone is the triple-ring design for the air intake control and top cap that extended beyond the body diameter of the original tank and made it look a bit clunky. The Crown 2 is definitely cleaner in appearance.

Refilling the Crown 2 is even easier than the original. A single counterclockwise turn and the top cap comes off to reveal two large eliquid slots that are larger than the original’s four. I experience no leaks at all after refilling the tank.

The air intake control ring has detents, as did the original, but now there are stops at both the fully open and fully closed positions. Nice.

Uwell Crown 2 Top Fill

As before, the drip tip is removable (and accommodates any standard 510 drip tip), but Uwell has installed a locking screw under the drip tip inside the top cap. Tightening that screw locks together the three sections of the main tank — base, glass tank section, and threaded top — so that removing the top cap for refilling cannot inadvertently dismantle the main tank section. I never had that problem with the original Crown, but some users did. Uwell listened and, by adding the locking screw, insured that the problem would never occur on the Crown 2.

Coil heads for the Crown 2 have been redesigned and are not compatible with the original Crown tank, although they’re similar in size. If, as I do, you have a stock of factory heads for the original Crown, they will not work in the Crown 2. You’ll need to restock for the new version. I presume that the new heads can be rebuilt, as the old ones can, but I haven’t taken one apart to see, so I can’t guarantee that.

Heads for the original Crown were very long-lasting. Getting months of solid vaping from a given head was common. I expect the new heads to be just as durable.

Performance

Uwell Crown 2 Aesthetics

I didn’t expect a dramatic upgrade in performance from the Crown 2 over the original Crown. In fairness, I presumed that any improvement in the vaping experience would be subtle at best. I hoped mainly for better aesthetics and a reduction in the occasional leaking after refilling the tank that marred the original. And that’s pretty much what I got in taking the Crown 2 for a test drive.

The original Crown was (and remains) a great tank with superb performance. So is the Crown 2.

Having used the new version for some days, one performance improvement I can pinpoint is in the smoothness of the vape it provides. The high power vaping experience (at 80 watts and higher) is essentially the same in both versions, but silkier in the Crown 2. The other difference is that the particular Crown 2 I tested provides a perceptibly fuller experience at lower wattage (50-70 watts). The improvement is mainly in increased vapor production. Flavor is great in both versions, about as good as current technology can provide for a sub-ohm tank using factory heads.

Overall, the Crown 2 honors the legacy of its predecessor and improves on it in all the ways we hoped it would.

Verdict

If you own the original Crown and love it, you don’t need to rush out and buy the Crown 2. The original Crown remains one of the best sub-ohm clearo tanks in the marketplace. But I’ll bet that you will buy a Crown 2, anyway, and sooner than later.

My best guess is that you won’t be disappointed. I wasn’t. In fact, I’m thrilled. The new version gives a subtle but meaningful improvement in vaping performance and seemingly silences all the small criticisms that the original Crown tank generated among users. The wish list has been fulfilled.

The Crown 2 Sub-Ohm Clearomizer Tank deserves and gets my Highest Recommendation.

My name is Bill. I’ve been a dedicated vaper for five and a half years, having ended a 35-year addiction to tobacco cold-turkey on my first day of vaping. I live on the Oregon coast, in the tiny town of Florence, one huge sand dune away from the Pacific Ocean.

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Dr. Ama
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Dr. Ama

Could you make some kind of table with the key changes between UC 1 and 2?

Bill Herbst
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Bill Herbst

Dr. Ama, Three key changes distinguish the Crown 2 from the original Crown: 1. better coils (called “bullet coils” because of their shape); the new coils are designed for smoother air flow. 2. easier top fill; a wider eliquid slot for filling and a locking system to insure that the tank doesn’t disassemble when the top cap is removed. 3. aesthetics; the Crown 2 resembles the Rafale more closely than it does the original Crown, with smoother, sleeker lines. I’d refer you to Ray Padilla’s preview article about the Crown 2 and video interview with Uwell’s Director of Marketing. Read… Read more »

Bobby
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Bobby

Is the crown 2 coils temp control (the 2 (.5/.2) that come with the tank?

DorjeeVajra
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DorjeeVajra

rAre the replacement atomizer any better I really loved the crown for a while and then all of a sudden all the atomizers were bad even from different sources. Spending a tank to tank and a half to break in and remove chemical taste and properly prime for 20- min with baby puffs. So you say there is a better design in the coils does this mean we don’t have to waste 20 min and a tank of juice before it starts smoking the way it should. I think these days most people are a bit more interested in Taste… Read more »

Bill Herbst
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Bill Herbst

i agree wholeheartedly that a sub-ohm clearomizer tank is only as good as its coil heads. Chinese clone coils (the kind sold on Fasttech), for instance, are notoriously inconsistent in quality. I wasn’t aware of Uwell having a quality control problem with its authentic heads, but I don’t doubt that you experienced what you wrote. Other than priming Crown coils with eliquid, starting at low wattage (30W), then gradually turning up the power as the wicking fully saturated over the initial 5-10 minutes of vaping a new Crown coil head, I never had the problems you report. If I’d experienced… Read more »

John Adams
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John Adams

Oh how quickly we forget how we raved about the Crown’s knurled adjustment rings, now calling them clunky. They worked, and worked well. Now, we’ve taken a giant leap backward to the death pinch.

RPadTV
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RPadTV

I’ve always disliked to the look of the original Crown’s rings, but understand and appreciate their functionality. I’ve started using a Crown v2 today and find it quite easy to adjust.

Bill Herbst
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Bill Herbst

John,

You may be right that some (many?) people raved about the original Crown’s knurling on the top cop and air intake control ring. I recognized their utilitarian purpose but always felt that they looked clunky. Another case of beauty being in the eye of the beholder, I guess.

Rick S.
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Rick S.

Bill,
Thanks for another great review. Is there an RBA set available for the C2 and if so have you had the chance to test it as well? After going through a few RBA coils on the C1 I got a couple that stayed together well but that was after going through a few where the top and bottoms did not hold together well. I also felt the juice wells could have been much larger or even just designed differently to allow for faster wicking. Thanks in advance

Bill Herbst
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Bill Herbst

Rick: No, I am not aware of any RBA deck available yet for the Crown 2. A Google search for ‘Crown 2 tank RBA deck’ comes up empty — search results are all decks for the original crown. I understand that some people insist on RBA decks and won’t buy a sub-ohm clearo tank without one. A standard pro or con in video reviews for sub-ohm clearomizer tanks is the presence or absence of an RBA deck. In general, however, I’m not a fan of RBA decks on sub-ohm clearo tanks. Too many of them are tiny, cheap, and cheesy… Read more »

Rick S.
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Rick S.

Bill – I could not agree with you more, they seem in most cases an afterthought by the company in response to the few that want them. There are few RBA decks for sub ohm tanks that are well made IMHO but the one’s that work well are much easier to use then rebuilding the factory coil, which I understand that you enjoy rebuilding but I personally find myself having flashbacks of rebuilding the old evod and/or protank coils, I have trouble with the extremely limited space to build on. But RBA’s like the Kanger subtank v2 RBA deck and… Read more »

Bill Herbst
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Bill Herbst

Rick, Good thoughts. Yeah, the old Kanger EVOD/Protank coils were a PITA because they were so tiny. Aspire Atlantis or Uwell Crown heads are much easier. I understand, of course, that many vapers wouldn’t want to try rebuilding them. I don’t know why I enjoy it so much, but I do. I just submitted my review of SMOK’s monster TFV8 tank, which comes with the best sub-ohm clearo RBA deck I’ve ever used — similar to the Herakles RTA. Brilliant. I’d be willing to bet that Crown or a third-party releases an RBA deck for the Crown 2. If so,… Read more »

Leisure_Time
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Leisure_Time

So I haven’t seen any reviews for Crown II’s RBA either. As I just got mine the other day. I thought I’d throw my review here for now. It’s chucking some decent flavor and smoke. It comes with a pre-built klapton and Japanese cotton. Interestingly, for only 1 coil it’s sitting at .28 ohms, although I’m new to vaping- I would have expected the resistance to be closer to ~.50 given my other various builds (but whatever). When I first got it I vaped on it around my usual ~40Watts, and after a long drag…I burnt the cotton auughh. After… Read more »

Kevin Wasalaski
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Kevin Wasalaski

I just received my C2 a few hours ago and my first impression is that it’s more aesthetically pleasing than the original but not much different than the Rafale. It’s functionality far exceeds that of the Rafale in that the top fill is much more user friendly. The one concern that I’ve had with all 3 tanks is the fact that the resistance has a tendency to bounce around before finally locking onto its proper rating, a flaw that I was hoping would be resolved with the C2 but my expectations were short lived. The original wasn’t too bad with… Read more »

Bill Herbst
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Bill Herbst

Hmmm, interesting. I’ve never noticed the resistance bouncing around on my original Crown tanks, but I’m not doubting what you wrote.

My question is: Why would the resistance change until it settles in? I understand hat resistance changes as the coil heats up, and may change some as the coil ages, but you’re describing a different phenomenon. Is it the electrical connection? the metal alloys used? I really don’t know. How odd.

I have a Rafale, but I’ve never used it. Maybe I’ll break it out and see if the resistance changes.

Kevin Wasalaski
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Kevin Wasalaski

I’m trying to answer that same question and I think it might be the mod I’m using. It’s a custom DNA200 device but I never have issues with the resistance bouncing with any alloy, except for SS. I didn’t really have this issue with the original Crown coils but it’s quite prevalent with the Rafale and C2. Simply unscrewing the tank from the mod and reseating it a few times eventually locks on the resistance, quite strange. Since I posted my review here, the resistance finally locked on and this tank delivers a fantastic vaping experience! It’s bringing out flavor… Read more »

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