Sub-Ohm Tank Reviews

Uwell Crown Mini

Most people will be more than familiar with the excellent Crown Sub Ohm tank. Uwell now brings you the new Crown Mini which for all intents and purposes is almost exactly the same as the original Crown but now features a TPD compliant 2ml capacity and a much more compact profile.

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Crown Mini by Uwell

Most people will be more than familiar with the excellent Crown Sub Ohm tank. Uwell now brings you the new Crown Mini which for all intents and purposes is almost exactly the same as the original Crown but now features a TPD compliant 2ml capacity and a much more compact profile.

So let’s take a good look and see if the new Crown Mini will give you the same quality of build and vape as the original Crown.

Crown Mini by Uwell features

  • Compatible with Original Crown coils
  • 2ml E-Liquid Capacity
  • 22mm Diameter
  • Easy to remove knurled top fill cap
  • Convenient top fill design
  • Knurled locking ring with precision airflow control
  • Wide Bore Drip Tip
  • 316 Stainless Steel and Quartz Glass Construction
  • Coils are made using Stainless Steel wire and uses 100% organic Japanese cotton
  • Available in Stainless Steel, Rose Gold or Black

What’s in the box?

  • 1x Uwell Crown Sub Ohm Tank
  • 1x 0.25ohm Stainless Steel Coil (Pre-Installed)
  • 1x 0.50ohm Stainless Steel Coil
  • 1x replacement Quartz Glass
  • Pack of Spare O-Rings
  • Product Verification Authenticity Code
  • User Manual

Crown Mini by Uwell styling and build quality

For anyone who owns the original Crown let me just assure you that the new Crown Mini features the same high standard of construction. All of the parts fit together beautifully with no sharp edges present at all. The quartz glass is thick and I suspect it could probably take a few light tanks and you can happily use tank cracker juices in the Crown Mini without running into any problems.  The drip tip has been modified and now has a much shorter profile than the original but I personally think this is a good thing since the one the Crown had was far too long. As you would expect the drip tip uses a standard 510 connection so you can easily swap it out for another one from your collection.

Given that the new Crown Mini is TPD compliant it now only holds 2ml of juice which will be an understandable sore point for many users and as such it may not even be worthwhile getting one if you have a few original Crown tanks in your collection but for a new user it will be far less of an issue especially if they haven’t yet tried anything with a larger capacity. The positive side of all this is that the Crown Mini is much shorter compared to the very large original and as such it should look really smart and compact on a wide variety of devices. The diameter of the Crown Mini is 22m so exactly the same as the Crown so you are unlikely to get any overhang.

Just like its predecessor the Crown Mini features the trademark knurling on both the top cap which makes for an excellent grip when unscrewing it and also on the airflow adjustment ring. The 510 pin looks to be either Stainless Steel or silver plated and is non-adjustable but I had no problems at all getting it to fit flush on several of my mods.


As far as I can tell when comparing it to my original Crown the Mini looks to have exactly the same airflow with a single horizontal slot on two sides of the tank. The adjustment works really well thanks to the easy to grip knurling and each setting clicks nicely into place. Keep in mind that the Crown Mini is a very airy tank so direct lung hits are the order of the day which become a more restrictive lung inhale as you close down the airflow.

Ease of use

Replacing the coils is extremely straightforward and you only need to unscrew the base and pull the coil out. When fitting a new coil do remember to prime it with a little juice and allow at least five minutes before taking your first vape. The coils use Stainless Steel wire so you can either use them in Variable Wattage Mode or in Temperature Control providing you have a suitable device. As you might expect Stainless Steel wire is far more durable than Kanthal and the coils should last you much longer. Keep in mind that they do have some break in time (typically two to three tanks worth) and the Resistance might actually fluctuate a little during this period. The coils are the same ones that are used in the original Crown so if you own that tank and have any spare you can fit them in the Mini.

Filling the tank is simple and you only have to unscrew the top cap. The filling slots are generous and will easily accommodate most juice bottle nozzles or droppers. Take care not to overfill or you will get some spit back for the first few vapes.

How does it vape?

I primed the pre-installed 0.25ohm coil and filled up the tank with some Manabush Omusa. After allowing a good five to ten minutes I took my first vape. I started at 35 Watts and quickly increased it to 45 Watts. While the tank offers a passable vape at this Wattage it does require much more power just like the original. I found 65-70 Watts was the sweet spot but you could push it even higher if you wanted.

Flavour is extremely good and just like the Crown but in some respects I felt the Mini edged it slightly due to its much shorter chimney! As you might expect at this Wattage it can be a hot vape but one thing it really does well is in the cloud production department since it puts out a lot of very dense vapour quickly!

Like I said the coils do need a few tanks worth of juice before they deliver the best flavour but even a brand new coil is still a perfectly satisfactory vape and given that the tank now only has a 2ml capacity it drains very fast. In some respects the coils need a bit too much power to the point where a heavy vaper like myself can get through a tank in ten to fifteen minutes. Given the limitation I personally think you would get more mileage if you stuck to using the 0.5ohm coils since they don’t require quite as much Wattage. Nevertheless the top filling system is convenient and it really is almost no effort at all to top the tank up.


As someone who liked the original Uwell Crown I found myself really enjoying the time I spent using the Crown Mini. The same high quality of construction is evident and the tank is still very simple and convenient to use! The flavour is in my opinion a slight improvement on the original Crown due to the Mini featuring a much shorter chimney. The fact that this tank uses the existing Crown coils is another positive point!

The only drawback that this tank has is that the 2ml TPD compliant capacity is drained extremely quickly and this isn’t helped by the fact that the coils do require a good amount of Wattage so you will be refilling often. When you consider that the original Crown is a very large tank the new low profile Crown Mini might actually be something that is very desirable. If were a fan of the original Crown then I think you will certainly enjoy the Mini!

Many thanks to Grey Haze who sent this tank to Planet of the Vapes for us to review. If you would like to purchase a Crown Mini you can get one directly from Grey Haze. Remember to use code POTV10 when placing your order to get 10% off.

For your chance to win the review item please see our competition.


VapeMaster avatar


Reviewer at POTV
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