Joyetech Cuboid Mini Kit Review

We take Joyetech's new all-in-one kit, the Cuboid Mini, for a vape.

Joyetech Cuboid Mini Colors

Joyetech Cuboid Mini Kit Intro

For beginning and intermediate vapers, all-in-one kits can be a terrific choice as a way to get started for a beginner or to get a leg up in vaping for someone who’s logged some flight time and wants a better vape. Joyetech’s Cuboid Mini Kit falls into the latter category. I wouldn’t recommend it to a first-time vaper just starting out, but for an intermediate vaper who wants to move up in the sophistication and quality of his/her vaping experience, the Kit seems tailor-made.

The Cuboid Mini Kit consists of a 80W temp-control Cuboid Mini box mod — a smaller version of Joyetech’s full-size Cuboid 220W TC that uses dual 18650s. The Cuboid Mini is svelte and sleek, powered by a non-removable 2400mAh Lipo battery that’s USB recharged. The Cuboid Mini atomizer — essentially a sub-ohm tank — is custom designed for the Kit. When mounted on the Cuboid Mini mod, the two match perfectly, making for a seamless, one-piece appearance.

The Kit includes a generous supply of different coil heads — a stainless steel vertical coil head, a Clapton coil head designed for lower wattage, a new Notch coil head meant for higher wattage, and what Joyetech is calling an RBA head. That’s something of a misnomer, because the RBA head included in the package I received is really a vertical coil head, apparently meant to be rebuilt. (Two hex screws and a hex wrench were in the parts bag, implying that Joyetech has a more typical RBA deck with posts and screws for this atomizer, but my package contained only the RBA head.)


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Joyetech Cuboid Mini Kit Specs and Features

Joyetech Cuboid Mini Kit Content
  • 1 x Cuboid Mini 80W TC Mod
  • 1 x Cuboid Mini Atomizer
  • 1 x Notch Coil (0.25Ω)
  • 1 x BF SS316 (0.5Ω)
  • 1 x BF Clapton (1.5Ω)
  • 1 x BF RBA
  • 2 x Mouthpieces
  • 1 x Micro USB Cable
  • 1 x User Manual
  • 1 x Warranty Card
Joyetech Cuboid Mini Taken Apart
  • Dimensions: 35.5*22.5*50mm
  • 2400mAh Internal Battery
  • Wattage Range:1W – 80W
  • Temperature Range: 200°F – 600°F / 100°C – 315°C
  • Resistance Range:
    • 05Ω – 1.5Ω (VT Modes)
    • 1Ω – 3.5Ω (VW/ByPass Modes)
  • Output Modes: VT-Ti / VT-Ni / VT-SS316 / ByPass / TCR/ VW
  • Compatible With Multiple Atomizers
  • Large OLED Screen
  • Firmware Upgradeable
  • Stainless Steel Threads
  • Charges Via Micro USB
  • 5mL Tank Capacity
  • TFTA Tank Technology (Top Fill Top Airflow)
  • Convenient Top Fill Feature
  • Detachable & Washable Structure
  • Compatible With the Notch Coil and BF Coils

Notable Remarks


The Cuboid Mini Kit is available online for about $40-60 plus shipping. It’s new enough (as of May 19th) to not yet be offered by many online vendors, but that will change soon, no doubt. The low end of the price range is a very good deal, considering the quality, power, and four heads included in the package.


Joyetech Cuboid Mini

First off, this is a handsome setup. Matching the atomizer to the mod makes for an attractive unit that’s slim, easy to hold for any size hand, and good-looking (mine came in gray and black). Like the full-size 220-watt Cuboid, the design is clean and smart, with impeccable machining and build quality. Judging from looks alone, the Cuboid Mini Kit beats the heck out of most other all-in-one intermediate kits.

We don’t live by looks alone, however. Well, most of us don’t. Beauty had better be more than skin deep. And this is where the Cuboid Mini Kit runs into some problems.

The 2400mAh rating of the Lipo battery seemed to me an exaggeration on the high side. The battery indicator showed full right out of the package, so I just began vaping without attempting a recharge. After half an hour of vaping, however, using the Notch head at a moderate 55 watts, the battery indicator had gone from full to 4/5 drained, and I wasn’t even chain-vaping.

Perhaps a number of USB recharges will bring out the best of that battery, allowing for greater longevity, but it’s disappointing to get only half an hour of vaping the first time out before needing a time-consuming USB recharge. I understand why Joyetech chose a non-removable Lipo battery — even a single removable 18650 would have been impossible to fit in the slim design — but I just hate USB charging altogether. Even with passthrough capability, who wants to vape while tethered to a cord? I can understand how a first-time vaper would appreciate USB charging, since beginners don’t already own 75 high-drain 18650s as I do, but I sure hope that the performance of that Lipo battery improves over time.

Joyetech Cuboid Mini Tank Window

The regulating chip in the Cuboid Mini is apparently the same chip used in Joyetech’s VT and VTC Mini. This chip has been criticized for inaccuracy of resistance readings, but praised for the quality and stability of its temp control performance, especially with nickel wire (stainless steel wire is generally the most difficult to regulate in temp control for most of the chips on the market). Joyetech has had almost a year to tweak the programming of that chip, so I’m inclined to give it a pass, with a good grade.

I’ve read online a number of customer reviews of this kit with complaints about the mod overheating — not dangerously so, but enough to be uncomfortable and worrisome. In fairness, the unit I received for review got only mildly warm, even with constant use at fairly high power. Overheating is a problem some people have reported (including me) with the full-size 220W Cuboid, so I think it’s worth mentioning here as a potential concern with the Cuboid Mini. I won’t list overheating as a Con, since mine didn’t, but be aware that the possibility exists.

One Dreadful Problem

Joyetech Cuboid Mini Top Coil

Now we come to the most serious issue, one that could be change the entire tone of this review. The included user manual states that the atomizer can be filled with eliquid to the top of the tank’s window, but I’d strongly recommend against this. Vaping the Cuboid Mini with a full tank produced an initial five minutes of vaping with gurgling from the heads and nasty spitback. “Spitback” is the term used in vaping to describe a pop of boiling eliquid that shoots up the drip tip and into the vaper’s mouth To call spitback unpleasant is an understatement, since it can literally burn one’s tongue. Spitback occurred with both heads I tried — the RBA head and the Notch coil — but it was much worse with the Notch coil. The same problem happened again when I refilled the tank after an hour of vaping, even though I refilled it only 2/3 full.

Joyetech is apparently aware of this, since the package includes a spare drip tip with a partially-blocked airway that’s designed to minimize spitback. While that restricted drip tip does reduce the problem, it doesn’t eliminate spitback completely.

Joyetech Cuboid Mini Coil

It pains me to consider rejecting an otherwise wonderful Kit because of a single problem, but this is my dilemma. Is temporary spitback after filling or refilling a deal-breaker? I hate to say this, but I think it is.

Once the Notch head had broken in and stabilized so that gurgling and spitback stopped (after about five minutes of vaping), performance of the Cuboid Mini mod and matching Cuboid Tank were terrific. I preferred a moderate power level of 55 watts with the Notch head, but I took it up to 70 watts with no problems. With the RBA vertical coil head, the sweet spot was 40 watts. With the exception of the nasty spitback issue, the Cuboid Mini Kit offers an amazingly good vaping experience that rivals much larger, more powerful dedicated setups with more expensive, individually-purchased components.

I’m sad to report, however, that the spitback problem just kills it for me.


  • Handsome, slim design with matching tank
  • Good build quality and machining
  • Nice chip for wattage and temp control
  • Generally wonderful performance
  • Price is reasonable (especially from some online vendors)


  • Head gurgling and hot spitback temporarily after filling or re-filling
  • Lipo battery capacity (2400mAh) seems over-rated


Joyetech is one of the giants among Chinese vaping manufacturers, a true juggernaut. They’ve been around for a long time and have learned from many mistakes along the way. The all-in-one Cuboid Mini Kit is a product that implements many of Joyetech’s hard-earned skills. The atomizer tank’s spitback problem is a horrible flaw, however. Even though the gurgling and spitback stop a couple minutes after refilling, it’s still a good deal worse than merely unpleasant.

In good conscience, I can’t recommend the Cuboid Mini Kit in its current form. If Joyetech fixes the spitback problem (and not just partially, by adding a cheap drip tip to the package), then I’d heartily recommend it to both beginning and intermediate vapers. Until then, however, the Kit gets a Thumbs Down from me.


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Bill Herbst

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.

  • Newtsy

    I’ve had this kit for a month, it is my first mod and I bought it due to the compact nature and the simplicity of the built in battery.

    It seems a sturdy unit and I haven’t had any trouble with overheating.

    I charged the unit fully before using and I have great battery life, gets me through a full day with plenty of chain vaping without issue.

    I have though had the awful spitback issue mentioned above. If the mod is not kept upright at all times it is worse. It would spit for an entire tank, even if being careful not to overfill. I retired the tank after less than a week.

    I would recommend the mod itself, but do yourself a favour and purchase a Uwell Crown to sit atop it. I am keeping the tank around for use with 50/50 tobacco mixes on the Clapton coil. It doesn’t seem to spit as badly then but its definitely a tight MTL draw.

    All in all I agree wholly with your review, which is nice because I’ve been following your site for awhile and it has reinforced my high opinion of your news and reviews.


    • Bill Herbst

      Thanks, Newts. Yeah, the spit back just kills that tank for me. That’s a shame, since it matches the mod so well, but I just put another tank on it.

      • mick

        Hi there, Im currently only using a joytech ego aio but finding it not very good for flavours etc, Bought the cuboid 150 and aspire cleito tank but even tho its a cracking but of engineering just found it way way to heavy and technical. Can anyone recommend anything better than the ego aio

        • Bill Herbst


          You’re in the right department. If you want something relatively light (and presumably perhaps smaller than a dual-18650) that provides more power and good flavor than your Joyetech eGo Aio, but is simple to understand and operate, a Box Mod starter kit is a good candidate.

          While the spitback problem eliminates the Cuboid Mini Kit as an all-in-one that I’d recommend, many other choices exist. Almost any good online vendor will have a large section for starter kits. Also, I’ll refer you to two other all-in-one starter kits, both with 75W mods and good tanks, that I’ve reviewed here on Vaping 360:

          Eleaf iStick Pico Starter Kit –

          Ijoy Goodger/Solo Mini Starter Kit –

          I’d definitely recommend that you get a kit with a box mod rather than an eGo-style tube mod.

          • mick

            Hi thanks for that so you recommend the cuboid mini then
            Or am I best going for the cuboid 150 with a aspire cleito tank

          • Bill Herbst

            You wrote in your first comment that you purchased the full-size Cuboid and Cleito tank. That’s a fine combination, and will give you a wonderful vaping experience.

            If I were you, I’d stick with those. I suggested a different starter kit only because you were concerned about the learning curve.

            With the Cuboid and Cleito, you don’t need to master every bell and whistle. Just put a factory head in the Cleito, use straight wattage mode on the Cuboid, set the power to an appropriate level to match the coil head, and vape away!

          • mick

            Bill thanks for that
            I have no idea what a factory head is.
            I have no idea about setting power, wattage or modes.
            I did purchase the cuboid 150 and the mentioned tank but as I’m a dip shit with these I returned straight away due to weight and not having a clue what to do with it!!
            I thought of the cuboid mini due to size & weight.
            I’ve only been using the ego aio for about 9 weeks as kicking the cigarettes and wasn’t heavy into vaping but now looking for something better than what I have
            Cheers for help

          • Bill Herbst

            A factory head is the little cylindrical metal thing that screws into the base of the tank. It contains the coil and wicking material. Most tanks have one already installed right out of the box, but other heads are usually included in the package.

            If you returned the cuboid and cleito, then we’re back to your finding a simple but good box mod starter kit.

            Yeah, the initial learning curve can be daunting. Hang in there. Read online — here and on the major forums — and watch YouTube vids. Understanding will slowly sink in. If there’s a brick-and-mortar vape store where you live, go there and let the sales people show you stuff. Buying something today isn’t as important as getting an education. Within a month or two, you’ll be enjoying yourself and blowing huge clouds. In the meantime, do whatever you can to avoid the stinkies as much as possible.

          • mick

            Cheers for today I can’t thank you enough. Might risk it with the mini or go full on with 150. The ego aio has been a good cheap product but I need more flavour I few juices I’ve tried just don’t taste of anything (might be a juice issue).

            You you be kind enough to recommend some good flavour tipping juices.

            Also In your opinion what’s your best box mods (is that what you call them) and tanks

          • Bill Herbst

            The marketplace for eliquid is HUGE. Thousands of choices. Too many for me to recommend a particular eliquid. These days, I DIY mostly.

            Check out the articles here on Vaping360 for Best Box Mods and Best Tanks:


          • mick

            Really like to look of this as its smaller & lighter than the 150. Is it the tank what’s the problem with the mini spit back. Is they a way around this. Can a uwell crown be fitted to it??
            Really want something better the ego aio but I’m just stuck

          • Bill Herbst


            Yes, you can use any tank with this.

            You obviously want the Cuboid Mini. Stop futzing around and just get it.

          • mick

            Well Bill
            In end I ended up grabbing a Cuboid 150 and a Uwell Crown tank. Fingers crossed.
            Now got to get some juice better than the Vampire Vapes ones better flavour.
            Thanks for you input

          • Bill Herbst

            Good for you, Mick. You now own a setup that can produce a wonderful vaping experience. I’m confident that you’ll make it through the learning curve in one piece.

            Happy vaping!

          • mick

            Well had the Cuboid 150 with Uwell Crown Tank now about a month. The Cuboid is a great bit of kit even tho on the heavy side. The Uwell Crown tank on the other hand after a few weeks is a nightmare. It’s a nightmare to unscrew to top fill without loosening the glass tank parts, It’s a nightmare to bottom fill same as above and a pain in the arse to unscrew, everything just locks up tight. It leaks all time through air vents. If this is supposed to be the daddy of tanks good knows how bad the others are.
            Has anyone tested or used the Uwell Crown 2 as the Crown is putting me of Vaping full stop.

        • Ray Miller

          A friend of mine gave me the cuboid mini as I wanted to start with the vaping experience, however I keep having to change my coil and change the liquid every so often as I get stung with a dry burnt taste. I have used e cigs in the past and I have never had this before. Please can you help.

  • Kitsonga

    Bought it as my first kit, and I have to agree, the tank is all kinds of wonky. The top-filling mechanism is the only good thing about it, never ever leaks a drop. But the spitback issue coupled with frequent air vent blockage (resulting in intermittent dry hits which caused me to discard perfectly good coils in the past) is enough to warrant a replacement.

  • Kim Crawford

    I just bought this today on a whim. And I have dozens of mods and tanks. But this one is down right dangerous. I have burns on my tongue from just a few spit back shots. And the tank end itself is so hot after a few puffs on 25 watts. Returning tomorrow morning. I took the mouth piece off and tried the black spiral one to see if it would help. I accidentally hit the trigger and my arm got sprayed with spit back like an RBA deck does when you burn off the coils. Don’t buy. I love joytech products but this one is a huge fail.