Strength is the specification buyers get wrong most often, and it is the one that eliminates the most devices from consideration. This guide explains how the percentages on these listings convert to mg/ml, which devices offer more than one strength, and how to match a device to a strength rather than the other way around.
The conversion, once and for all
Vape strength is written two ways on product pages, and they describe the same thing:
| Percentage | mg/ml |
|---|---|
| 0.6% | 6 mg/ml |
| 2% | 20 mg/ml |
| 3% | 30 mg/ml |
| 5% | 50 mg/ml |
The rule is simple: multiply the percentage by 10 to get mg/ml. A “5%” device contains 50 mg of nicotine per millilitre of e-liquid; a “0.6%” device contains 6 mg.
Both figures appear on our listings for every device, because a single number invites misreading and a buyer should never have to do the arithmetic themselves.
What the catalogue actually offers
Fourteen of the fifteen devices on this site are supplied at 5% (50 mg/ml) — the standard strength across the Fumot, VOZOL, ETS and JNR ranges. One device breaks the pattern entirely.
The AL FAKHER 60K is supplied at 0.6% (6 mg/ml). It is the highest-capacity device we stock — 60,000 puffs, 50 ml — and the lowest strength, which makes it the outlier on both axes at once. Nothing else here comes close to 6 mg/ml.
That leaves four devices that offer a choice of strength rather than a fixed one:
| Device | Strengths available |
|---|---|
| Fumot Digital Box 12K | 0%, 2%, 3%, 5% |
| Fumot Tornado 20K | 0%, 2%, 3%, 5% |
| JNR Falcon 16K | 0%, 2%, 5% |
| JNR Falcon X 18K | 0%, 2%, 5% |
Two Fumot models offer the full four-step spread, including 3% (30 mg/ml). Two JNR models offer three of those four. Every other device on the site gives you one option only.
Why only four devices offer a choice
A disposable with a fixed reservoir is filled at the factory. Offering four strengths means four separate SKUs — four production runs, four packaging variants, four inventory lines. Most manufacturers pick the strength that sells best in a given market and ship that one.
The devices that do offer a spread are the ones positioned for broad distribution: the Digital Box 12K has 56 flavours precisely because it is the entry point into the Fumot range, and the Tornado 20K carries four strengths for the same reason. If strength flexibility matters to you, those are the four models to look at.
The 0% option, precisely stated
Four devices are available at 0%, which means no nicotine content in the e-liquid. This is worth stating plainly because it is often described vaguely: a 0% device is a nicotine-free product, not a low-strength one.
If you are choosing a strength based on a personal decision about nicotine, that is a decision to make with a qualified professional rather than from a product page — our role is only to tell you accurately what each product contains. What we will not do is imply that any device here is a step in a health process. These are nicotine products for adult use.
Matching strength to device
Because strength is fixed on most devices, the practical approach is to decide strength first and let it filter the catalogue:
1. You want 0.6% (6 mg/ml). One option: the AL FAKHER 60K. It also happens to be the largest-capacity device here, so the trade-off is not painful.
2. You want a strength below 5% but above zero. The four multi-strength devices are your only route — and if you need 3% specifically, only the Digital Box 12K and Tornado 20K offer it.
3. You want 5% (50 mg/ml). Almost everything qualifies. Choose on capacity, display, flavour count or battery instead.
4. You want 0%. Same four multi-strength devices, at their lowest setting.
There is no device here where strength flexibility and a feature you want conflict badly. The Digital Box 12K is the entry-level device and the most flexible; the Tornado 20K combines all four strengths with 43 flavours, a Smart Display and the largest battery in the Tornado line.
Nicotine content is not the same as strength per puff
One clarification that prevents a common mistake. A 5% (50 mg/ml) device and a 0.6% (6 mg/ml) device differ in the concentration of the liquid, but the amount delivered per draw also depends on how the device is built — resistance, coil structure and airflow all influence how much liquid is vaporised at once.
This is why the ETS Monster 25K, with adjustable airflow and 25W Turbo output, draws differently from a fixed-draw device at the same 5% strength. Concentration is the figure printed on the box; delivery is a property of the whole device.
We do not publish per-puff nicotine yield figures, because manufacturers here do not provide them. Where a number is not published, we leave it out rather than estimate.
Storage and labelling
Every device on this site ships with manufacturer warning text, and the Tornado 20K additionally carries French-language warnings on its retail packaging — relevant if you are stocking for a French-speaking market.
Keep all nicotine products out of reach of children and pets, and store them away from heat. Local rules on concentration, container size, labelling and advertising vary considerably by market; check the requirements that apply where you are selling or buying before ordering, as those rules — not this page — determine what can lawfully be supplied in a given country.
Where to go next
If strength is settled, the Fumot range is documented model by model on the Fumot Vape page. To filter by capacity instead, use the puff count collections; to compare rechargeable and sealed devices, use the rechargeable vape collection; and if a display matters to you, the vape with screen collection lists all nine devices that have one.
For a full walkthrough of how capacity tiers differ, see our guide on choosing a puff count, or compare brands directly in Fumot vs other brands.
Related guides: rechargeable vs disposable formats · how dual-chamber devices work
18+ only. For adult use only. Nicotine is an addictive substance. Products on this site contain nicotine. Keep out of reach of children and pets.