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Uwell Crown 4 Sub Ohm Vape Tank


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After the incredible success of the legendary original Crown Tank and the release of the Crown 2, Uwell made vapers wait, and wait, and wait for the highly anticipated release of the Crown 3. If you were expecting a similarly long wait for the Crown 4, you’ll be pleasantly surprised to learn that it’s already here! The Crown 4 incorporates some of the best features of the Crown 3 and earlier versions of this illustrious tank series while improving a number of aspects toward increased performance and seamless operation. Using a new leak-resistant atomizer design, with a similar unthreaded attachment system to the design debuted with the Crown 3, the Crown 4 atomizers feature exotic coil materials such as ultra-high grade 904 series stainless steel and FeCrAl (iron, chromium, and aluminum). Additionally, the Crown 4’s appearance has received a significant upgrade with angular elements incorporated into the tank’s durable stainless steel exterior. Interestingly, Uwell has developed a redesign for the Crown 4’s base that allows juice that would normally collect in the base to be re-vaporized creating an extremely clean and efficient system. If you’re a die-hard Crown fan, or just wondering what all the hype is about, you owe it to yourself to experience the latest incarnation of the series by adding the awesome Uwell Crown 4 Sub Ohm Vape Tank to your cart today!

What’s Included

  • 1 x Uwell Crown IV (4) Tank
  • 1 x Spare Glass Tube
  • 1 x 0.4ohm Dual SS904L Coil - rated for 60-70W
  • 1 x 0.2ohm Dual SS904L Coil - rated for 70-80W
  • 1 x Pack of O-Rings
  • User's Manual
  • Drip Tip Cover

Specs & Features

    Uwell Crown 4 Sub-Ohm 28mm Tank Features

  • 28mm Diameter
  • 5mL Standard Glass
  • 6mL Bubble Glass Tank
  • Superior Stainless Steel Construction
  • Pyrex Glass Reinforcement
  • Quarter Turn Threaded Top Refill System
  • Uwell Crown 4 Coil Line
  • 0.2ohm Dual SS904L Coil - rated for 70-80W
  • 0.4ohm Dual SS904L Coil - rated for 60-70W
  • 0.25ohm SS304 UN1 Coil - rated for 55-65W
  • 0.23ohm FeCrAl UN2 Coil - rated for 60-70W
  • Dual SS904L Coil - Corrosion-Resistance
  • Double Helix Mesh Coil
  • Self Cleaning Technology
  • Pro-Flavor Optimization Core System
  • Dual Knurled Adjustable Bottom Airflow Control Ring
  • Gold-Plated 510 Connection
  • Detachable Structure
  • Available in Black, Blue, Green, Rainbow, Purple, Stainless Steel
WARNING: This is an advanced Item. Please use at your own risk and always use proper precautions and handling as these are very sensitive to charging characteristics and may explode or burn if not properly handled. Please note that there is an inherent risk with the use of any and all rechargeable batteries in any circumstance. We are not responsible for any damage, injury, or defect caused by the improper use and/or mishandling of Li-ion (Lithium-ion), LiPo (Lithium-ion Polymer) and any rechargeable batteries and chargers. Images are for illustration purposes only. Actual color, finish and packaging may vary.
  1. Holy Crap...! review by Brian on 8/11/2019
    Overall Rating

    Holy crap, it really does NOT leak! Ever! Held off on the review for a few months figuring that time would tell, and the verdict is in: This tank just will not leak, EVER, even through the vents. Not a drop. Yup, had to order the mesh coils when I bought the tank. But for the best possible flavor through the first tank I've ever owned that will not leak a single drop, that's a small price to pay. I'll take it, and I'll recommend this tank to everyone I know. The only thing I can think of that might improve this tank is the bigger drip tip but I'll certainly take it the way it is. Way to go, Uwell!

  2. So far, IMPRESSED! review by Michelez on 6/20/2019
    Overall Rating

    Just been using it for a few days, but I'm really glad that I bought it. After wasting so much money on Geekvape and then Smok coils, juice and the tanks that went with the coils, I was ready to throw them all away and stop vaping. That's how tired I was about the leaking that these coils did. Every now and then, I would get a good one, but it is more expensive to ship back than it is to keep the damn things! Thank goodness I came across this tank. So far, I'm impressed with the no leaking and the 0.4 coils are actually doing good too. I'm using my Geekvape Aegis Legend Mod with it and yay, I can still keep vaping!! I hope that the tank continues to do well. I'm a skeptic now, LoL. Btw: the only coils for my Smok Big Baby Brother tank that don't leak and work well are the M2's. Smok needs to get their act together bcuz Uwell has blown them out of the water with this Crown 4 tank. Keeping my fingers crossed! LoL

  3. Great review by Sherry on 6/14/2019
    Overall Rating

    I love it

  4. Best Leakproof RTA Available review by Bioteknik on 5/30/2019
    Overall Rating

    Amazing RTA, puts others to shame. A fully snap together RTA, snap in coils, quarter turn top fill 4 huge fill slots with a raised stack u can fill this tank in the dark correctly. If you choose a colored tank the airflow slider is just right wont slide in pocket. Any moisture/juice that does make it to the bottom deck is burned off. 2 hits burn off 8 drops of 70/30 but ive had absolutely no leaking after 5 coil switchouts, i just put juice on bottom deck to test that feature. Seems like all the coils are now mesh. Coils made of an amazing composite metal (notice cotton stays clean for much longer thus coils hold flavor much longer). Put this RTA on a Legend (big or pocket version).
    As for flavor, ive yet to find any RTA that has better flavor, Tons of RTAs and this one im truly in love with. ODB and Cobra TFV12 Princes dont come close. Can cloud chase with the 510 tip (which many post as a negative) as well as any 810.
    Purple one is amazing looking, the sharp edges testement to design as well as construction. A breakthrough RTA in my mind.
    To get above this tank youd need to have a high quality RDTA. I wouldnt be suprised if they designed a pop in RDA deck thus making it an RDTA.
    Uwell has been adressing shortcommings in reviews from the original crown 4 release (wider coil/mesh ranges available now). Low wattage reccomendations, but handles higher very well. Also a minimum fill line on stack base. Bubble glass gives plenty of fluid.
    The price here is great, and worth recieving Non Clones and non UK aimed tanks.

  5. Surprised review by Shon on 3/29/2019
    Overall Rating

    So I got this tank as a to replace my Falcon tank as my daily driver. I've heard nothing but good things about the tank and the no leaking is key for me. However people have been saying that the flavor isn't as good as the M2 or the M2 dual. I've become accustomed to mesh coils at this point so I put an order in for the mesh coils with the tank because they don't send one with the tank (wth Uwell get with it) and I was pleasantly surprised when the mesh gave me better flavor than the M2 (after a tank of juice ran though it for break in). M2 dual is better but it drinks juice like nothing I've ever seen and I don't have the money to have that kind of juice budget. All and all the tank is flawless and the mesh is fantastic for me and anyone who wants the fantastic flavor without spending a butt ton on juice. Also I run the mesh at 85 - 90w I think they way under rate their coils. Highly recommend.

  6. Amazing Sub Ohm Tank review by Marc P. on 1/1/2019
    Overall Rating

    Probably one of the best purchases i've made. I've ran all my favorite e juices through this thing and each time it never failed to disappoint. I couldn't find any defects in the anodization with mine so the color is really good quality. The two coils it comes with are both very good in their own way, but if you pick this up I recommend getting it with the 0.4 ohm coils. The 0.4 ohm coils I found gave me the best cloud/flavor, but the 0.2 is no slouch. Its a top fill with nice fill ports, you can fit a dropper in there fairly easy if you have an e juice with a dropper. ZERO LEAKS. I've compared this to my Freemax Fireluke Pro and my Horizon Falcon sub ohm tank. This tank really gives both of those tanks a run for their money. My only complaint about this tank is the way they designed the disassembly, and the drip tip . Its why im giving it a 4. It's not hard to take apart, but I don't like the fact I have to take apart the whole thing to get to the coil. I prefer tanks where you can easily just unscrew the bottom and remove the coil without removing the glass. The drip tip they put on it is not bad, but I think they could have put on a more comfortable color matching 510 drip tip on it right out the box. Most aftermarket 510 drip tips seem like they fit on this tank just fine. Overall I highly recommend this tank especially if you're a flavor chaser!

  7. Truly a Mess-Free Tank review by Rob90 on 12/13/2018
    Overall Rating

    This tank doesn't leak. That's really my top priority when it comes to choosing the right tank. So far, I have nothing but good things to say.

  8. A Magnificent Tank review by Mitch on 12/13/2018
    Overall Rating

    This is an absolutely flawless sub-ohm tank with a very good juice capacity. I've only used it with the Uwell Crown 4 Starter Kit.

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Uwell Crown 4 Sub Ohm Vape Tank