Product intro and specs
After the success of the Profile RDA, Wotofo is back with a hot new atomizer called the Profile Unity RTA. This version is called “Unity” because it’s a joint collaboration between Wotofo, Brian of The Vapor Chronicles (TVC), and the designer of the Profile RDA, Mr.JustRight1.
The Profile Unity RTA is a 25 mm mesh tank designed for big flavorful hits and copious vapor from relatively low power. This RTA can also accommodate restricted lung hits — but not at all MTL. It comes with two size tank sections, one for 3.5 mL and one for 5 mL. It’s available in several colors and it’s being sold on various online sites from China to the US.
This RTA was sent to me free of charge by MyVpro for the purpose of this review.
Price: $39.99 (at MyVPro)
Colors: black, gold, stainless steel, blue, rainbow, gunmetal
- 25 mm x 44 mm (including tip in 3 mL mode)
- 25 mm x 48.5 mm (including tip in 5 mL mode)
- Top filling
- Mesh coil
- Adjustable side airflow
- German PEEK insulator
- Profile Unity RTA
- 3 mL tank section
- 5 mL tank section
- Chimney extension for the 5 mL section
- User Manual
- Coil rod tool
- Phillips head screwdriver
- 2 x nexMesh 1.3-ohm mesh strips
- 2 x 6 mm agleted Cotton strips
- 1 bag extra O-rings
- screws & springs
Build quality and design
The Profile Unity is a well-built RTA. It has an industrial aesthetic with nothing hokey. There’s a small engraving of the words “Profile Unity” on the front of the tank under the glass portion that looks like a sports logo, but other than that it’s minimal design — in a good way. I received the gunmetal version. The finish on mine is basically flawless, and the machining on the inside of the tank is pretty good. It’s not the best, but there’s nothing for me to quibble about regarding the machining.
It’s a nice-sized tank, but it’s not overly big. Including the tip, the Profile Unity measures 25 mm x 44 mm with the 3 mL tank on, and its height is increased to 48.5 mm with the 5 mL tank section. It’s got a beefy Goon style resin 810 drip tip that’s awesome to use. it’s also compatible with some tips without O-rings. But it’s too nice to swap. The drip tip base opening is the same diameter as the chimney and it funnels out to a wider mouth bore. This tip is truly a part of the tank, not just an afterthought.
Another nice part of the design is the top cap. It screws on with tongue-and-groove threading. It only takes 1/3 of a turn to remove or replace the cap for refilling. It may seem like a simple thing, but it’s a pleasure to use … but the fill ports are too narrow. Although the ports are sunken in, thick juice can pool in the narrow ports and cause a mess if not paying close attention to the fill. I tried filling it in the dark the other night until I felt something wet dripping down my hand — I won’t do that again!
I’ve also had an issue with the threading of the bottom deck section. Sometimes the threads don’t catch when I’m putting the tank together at an upright position. The best way to get the deck assembled to the rest of the tank is to turn the tank upside down and pay close attention to screwing it on evenly. And builders out there should know that you can’t remove the tank while leaving the deck attached to the mod. You can remove the deck while still having a full tank, but you have to first take the tank off the mod.
Note: check out the kit contents drop-down above to see all that comes with the kit.
The build deck of the Profile Unity RTA is basically the same as the Profile RDA but with wick ports. What’s unique about this RTA is that it has juice feeds from below and above the deck. The deck used is a clamp-style for use with a single strip of mesh that gets trapped by combo flathead/Phillip’s head screws. Although the deck can technically accommodate different types of multi-strand coils, the large wick ports are too wide for most of those coils and the small conical chamber is designed to fit the mesh coil. Plus, there are countless other options on the market that are better suited for fancy coils. I suggest to think of this tank as mesh only.
The mesh strip gets placed inside the clamps for a horizontal build of a semi-circle “coil.” The clamps are not spring-loaded, but that would be unnecessary due to the thinness of the mesh strips. A slight turn of your screwdriver will open up those clamps enough to easily drop in the strip.
Same as the Profile RDA, the deck of the Unity employs a spring-loaded ceramic platform that pushes up against the cotton to alleviate any sag. The mesh strip ends up having a really wide internal diameter, and the dense cotton needed can sag once it gets weighted down with juice. I can’t tell if the platform is really pushing the cotton up, but I do like that it’s there just in case the cotton needs a little more lift.
Coil installation and wicking
Included in the kit are 2 x nexMesh Kanthal strips with a resistance of about 0.13 ohms. The Profile RDA strips are compatible, but those are a slightly higher resistance (0.18 ohms). And just like the Profile RDA, Wotofo included a coil rod for forming the mesh strip into a semi-circle for installation. It’s super-simple to do, and it’s all laid out in the instruction manual and on the Wotofo site.
Simply bend the mesh strip over the handle of the coil rod, making sure that its arc is even and in a perfect semi-circle. When installing, ensure the mesh strip’s solid ends are completely in the clamps for a solid connection. To trap it, hold the coil in place when tightening the screws. If you don’t, the strip can get bent out of place and that could cause hot spots and uneven contact with the cotton. Mesh MUST stay in constant and tight contact with a wet wick or you run the risk of the coil igniting.
It only takes a few seconds to shape the mesh and drop it in. A quick couple pulses at a very low wattage — like 10-15 watts — is all you need. Make sure it’s glowing evenly and you’re all set. The step most likely to cause issues is going to be the wicking. It’s not difficult to wick, but you can’t approach it how you do with standard RTAs. At least do it how they suggest before you try doing your own thing. It’s imperative to get it right!
Wotofo includes two strips of agleted cotton that has the perfect thickness for the necessary tight wicking. Wotofo recommends cutting the cotton at a 45-degree angle where it’s wider at the bottom. Tuck the bottom portion of the cotton in the ports and fluff the portion above the ports to be wicked from the top juice feeds. When finessing the cotton into the ports with whatever tool you use, make sure it is not bunched up in the bottom of the well. The cotton should seal the top portion of the ports, but there should be adequate space left in the well for juice to flow. If you follow these simple steps, you should see why this RTA is receiving all the hype right now.
The performance of the Unity RTA has been stellar! The flavor and vapor are both top-notch. After my first tank-full, I was impressed. After a couple more refills, the mesh broke in and the flavor production got even better. But, man! Those refills came quickly. This thing can guzzle juice! And considering how good the vape quality is, you better break out those big bottles.
Although I like the look of the tank with the 3 mL glass, it’s probably better to use the 5 mL section so you don’t have to refill so often. Unfortunately, I can’t say if the flavor is affected with the chimney extension because I accidentally dropped and broke the 5 mL glass seconds after I opened the package.
I haven’t had any issues with the performance in my normal usage. No leaking or gurgling or anything like that. I’ve used 70/30 ejuice (Yami Vapor) and even 50/50 juice (Five Pawns). I can take multiple hits back to back and the wicking keeps up. It’s really efficient at feeding juice to the cotton (if you wicked it right!). The juice feed inside of the chamber has a “bi-level juice port structure,” that wets the wick from the top and bottom of your tails (which underscores why you need to get the wicking fluffed up how they suggest).
I’ve been using mine in the recommended range of 60-70 watts. I was able to get an almost-dry hit when I tried pushing the watts too high (80 watts) and taking too many long hits. When I stay within the recommended range, it’s been smooth sailing. I haven’t had any dry or burnt hits … thank goodness!
The Profile Unity has two sets of 5 x 1.5 mm airflow holes with an adjustable ring. It’s got an easy adjustment that’s tight enough to not accidentally move from where you set it. And it stops on the turn.
Fully open, the Profile Unity has a lot of airflow but with a noticeable restriction. The tightness increases with each closed hole until it gets to a really tight restrictive lung hit. No matter how many holes I have open, the airflow is smooth and relatively quiet. I haven’t gotten any turbulence. Based on the Wotofo diagram, the airflow holes are more like chutes that are angled down to hit the mesh with focused air.
At its most open setting between 60-70 watts, it’s mildly warm. The warmth increases with each hole closed. With one hole open, it’s too hot for me at the recommended range. But dropping the power down to about 45 watts on one hole provides a really good restricted lung vape that’s flavorful and comfortably warm.
Pros / Cons
- Clean aesthetics
- Nicely designed drip tip
- User-friendly top cap design
- Airflow adjustment stays where you set it
- Big vapor production
- Saturated flavor
- Relatively quiet airflow
- Able to produce a legit restricted lung hit
- Easy to build
- Plenty of extras included
- Wicking is not intuitive
- Can’t remove the tank from the base while on the mod
- Juice ports are too narrow
I love this tank. It’s easy to build on, and the flavor and vapor production are incredible. There are some design choices that I’m not totally thrilled about, but the stellar performance makes it hard for me to fault it. I do wish there was a more intuitive way to wick it though. The wicking is almost always the major failure point in bad builds of RTAs. But with mesh, there’s even less room for failure: a bad hit on mesh could be a problem you do NOT want.
I recommend wicking the Unity the Wotofo way (or even the Rip Trippers three-strand Firebolt cotton way.) But whatever you do, just make sure your wick is really tight in the mesh and the top half of the tails are fluffed up.
If you like a restricted lung hit up to a big DL hit, it’s almost a guarantee that you’ll like the vape from this tank … if you get the wicking right.
I’m the chief editor here at Vaping360 and I reside in southeast Michigan. I’ve been vaping since my first ecig purchase in 2010. For more reasons than I can list, vaping has been a lifesaver for me. Now, my goal is to help other smokers make the switch.
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