Let’s be completely honest for a second: we’ve all been in that frustrating situation where we desperately want a quick nicotine break, but blowing a massive, obnoxious cloud of vapor is completely out of the question. Maybe you’re sitting in a car with non-vaping passengers, relaxing in a crowded outdoor cafe, or stuck in a designated smoking area where pulling out a massive sub-ohm tank feels a little too flashy.
Usually, the only solution is to attempt the infamous “stealth vape”—taking a tiny drag and holding your breath until your lungs absorb the vapor, hoping nothing escapes when you finally exhale. It’s uncomfortable, and it rarely works perfectly.
But a brand-new device is hitting the market designed specifically to solve this exact problem without the lung gymnastics. Enter the Zeloth, a revolutionary “smokeless” electronic cigarette that recently caught the attention of prominent Japanese hardware reviewer HORICK TV.
Priced at roughly $29 USD for the starter kit, the Zeloth claims to offer a completely vapor-free experience without sacrificing that crucial throat hit. But does the technology actually hold up in the real world, or is it just a clever marketing gimmick? Let’s dive deep into the hardware, the wildly unique e-liquid chemistry, and the flavor profiles to see if this stealth device is worth your hard-earned money.
Design and Build: Smaller Than a Business Card
When we talk about stealth vaping, physical size is half the battle. The Zeloth absolutely nails this aspect. It is shaped like a slim credit card or an ultra-thin power bank, making it significantly smaller and flatter than a standard business card. It slips into a shirt pocket or the coin pocket of your jeans without leaving any visible bulge.
Weighing in at a mere 51 grams with a full pod attached, it isn’t going to weigh down your gym shorts either. The chassis comes in four distinct, matte-finished colors: Urban Black, Off White, Magenta, and Turquoise. The textured finish gives it a premium, grippy feel that stops it from slipping out of your hands.
One massive quality-of-life inclusion is the dedicated mouthpiece cap. Since this is a device designed to live in your pocket for discreet hits throughout the day, the tethered silicone cap ensures the mouthpiece stays completely clean and free of gross pocket lint. It’s a small, practical detail that daily vapers will heavily appreciate.
The 3 Modes of Vaping: How It Actually Works
The biggest selling point of the Zeloth is its versatility. It doesn’t force you into just one style of vaping. Instead, the onboard chip allows you to swap between three distinct methods depending entirely on your current environment.
1. The Stealth Mode (Default) Right out of the box, the device is set to its signature smokeless mode. When you take a draw, the device vibrates gently to let you know it’s firing. However, it automatically cuts off the vapor production after exactly 0.5 seconds, even if you keep inhaling. The trick here is simple: you pull that small burst of vapor deep into your lungs and hold it for just a second. Because the vapor volume is so tightly controlled, your lungs absorb it entirely. When you exhale, absolutely nothing comes out. It is 100% invisible. This is perfect for vaping in the car or anywhere you want to be completely discreet without drawing stares.
2. The “Shisha” Mode If you are chilling at home and actually want to see some vapor, you can use the exact same default setting, but change how you inhale. Instead of pulling the vapor deep into your lungs, you take a mouth-to-lung (MTL) draw—holding the vapor in your cheeks—and immediately exhale. Because you aren’t absorbing the vapor deep in your chest, it produces a small, satisfying, shisha-like cloud.
3. Manual Mode (Full Power) What if you’re alone and just want a normal vaping experience with longer drags and richer flavor? By rapidly pulling the pod out and pushing it back in 5 times, you unlock Manual Mode. The device will vibrate and the LED will flash to confirm. In this mode, the 0.5-second restriction is completely lifted. You can take long, deep draws just like any standard pod system on the market. To revert back to the smokeless stealth mode, you simply repeat the 5-pull sequence.
The Secret Sauce: 100% PG E-Liquid
To pull off this smokeless magic, the engineering team behind the Zeloth had to get creative with the liquid chemistry. Standard vape juice is usually a 50/50 mix of Vegetable Glycerin (VG) and Propylene Glycol (PG). VG is the ingredient responsible for creating thick, dense clouds, while PG carries the flavor and provides the throat hit.
The pre-filled replacement pods for the Zeloth use a 100% PG formula with absolutely zero VG. This means the liquid inherently produces almost no visible vapor to begin with, focusing entirely on delivering a sharp, satisfying throat hit.
However, this unique chemistry comes with a trade-off. 100% PG liquid is incredibly thin—almost the consistency of water. If the manufacturer put this thin liquid into a massive 10ml tank, it would leak everywhere within hours. To prevent messy pocket leaks, the Zeloth pods are capped at a tiny 3ml capacity.
If you use the device in Manual Mode and take long, deep drags, you will drain that 3ml tank incredibly fast. But if you stick to the default 0.5-second stealth puffs, a single pod will actually last a surprisingly long time.
Flavor Breakdown: From Icy Menthol to Heated Tobacco
The Zeloth offers seven distinct flavor profiles, divided into three categories to suit different types of smokers. At roughly $27 USD for a pack of two replacement cartridges, the flavor quality needs to deliver. Here is how they stack up during real-world testing:
The Hard Menthols
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Lemon Menthol: A very subtle hint of citrus paired with a sharp, icy kick. Because the default puff is so short, the lemon flavor is faint, but the throat hit is incredibly refreshing.
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Pure Menthol: Exactly what it sounds like. No added sweetness, no fruity undertones. Just a clean, icy blast that cools the back of your throat.
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Spark Menthol: This is the heavy hitter of the group. It tastes like aggressive, black sleep-fighting mint gum. If you desperately need a harsh, intense throat hit to simulate the bite of a real cigarette, this is absolutely the one you want.
The Sweet “Shisha” Flavors
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Premium Muscat: Modeled after the sweet, juicy Japanese Shine Muscat grape. In the 0.5-second stealth mode, you only get a fleeting tease of the flavor. But if you switch the device to Manual Mode, this flavor absolutely explodes over your palate.
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Classic Ramune: This is a massive community favorite. It perfectly mimics the taste of classic blue Japanese soda (think of a melted Garigari-kun ice pop). In Manual Mode, it is rich, syrupy, and deliciously cooling.
The Heated Tobacco Capsules (IQOS Style)
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Purple Capsule: Designed specifically for users transitioning away from IQOS or similar heat-not-burn devices. It impressively replicates the taste of the IQOS Oasis Pearl—a blend of roasted tobacco with a dark, jammy berry undertone.
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Heaven Capsule: A mix of tropical fruits layered over a heated tobacco base. While accurate to the IQOS experience, the roasted tobacco notes can overpower the fruit slightly compared to the Purple Capsule.
Pros and Cons: The Bottom Line
What We Love:
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True Stealth Capabilities: The 0.5-second cutoff and 100% PG liquid aren’t just marketing buzzwords; they actually work. You can comfortably vape without producing a single wisp of visible smoke.
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Incredible Versatility: The hidden ability to unlock Manual Mode for a traditional, flavor-heavy vape experience makes the device highly adaptable to your surroundings.
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Form Factor & Hygiene: The ultra-thin card design is incredibly pocket-friendly, and the included tethered mouthpiece cap is a fantastic, practical touch.
What Could Be Better:
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Tiny Liquid Capacity: At just 3ml, heavy users who prefer leaving the device in Manual Mode will burn through pods quickly, making the $27 replacement cost add up over a month.
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Muted Flavor in Stealth Mode: Because the default puff is artificially limited to half a second, you simply don’t get the same rich flavor saturation that you would from a standard pod system unless you unlock it.
Final Verdict: Is It Worth The Price?
Let’s be clear: the Zeloth isn’t designed to replace your favorite flavor-banging box mod, nor is it trying to compete with your high-capacity, 10,000-puff disposables. It is a highly specialized, purpose-built tool.
If you are someone who spends hours in environments where blowing clouds is socially unacceptable or strictly prohibited, the roughly $29 USD starter kit is a phenomenal investment. It gives you the throat hit and oral satisfaction you crave without forcing you to constantly run outside or hide in a bathroom stall.
The engineering behind the 100% PG liquid and the auto-cutoff chip is clever, highly functional, and executes exactly what it promises: a genuinely invisible, smokeless vape experience.