Vaporesso GTX coils, values and compatibility traps

Ordering Vaporesso GTX coils looks like a one-click job, a resistance value and a pack of five. It is less tidy than that. The same value carries two different wattage brackets depending on which of the manufacturer’s own pages you read, two 1.2 ohm parts share one name, and several of the brand’s pods simply refuse the low values. Get it wrong and the whole pack ends up in a drawer.

Which Vaporesso GTX coils for which wattage

The GTX platform offers seven ready-made values from 0.15 to 1.2 ohm, plus a rebuildable 0.7 ohm deck. For each of the Vaporesso GTX coils, the table gives the bracket the manufacturer publishes on its global product page and in the leaflet inside the box, the setting it names as best, and the draw it is built for.

Value	Bracket on the box	Best	Draw
0.15 ohm mesh	60 to 75 W	70 W	direct lung
0.2 ohm mesh	45 to 60 W	55 W	direct lung
0.3 ohm mesh	32 to 45 W	40 W	direct lung
0.4 ohm mesh	26 to 32 W	30 W	restricted direct lung
0.6 ohm mesh	20 to 26 W	24 W	restricted direct lung
0.8 ohm mesh	12 to 16 W	16 W	mouth to lung
1.2 ohm mesh or regular	8 to 12 W	11 W	mouth to lung

The leaflet also names the alloy, which retail listings rarely mention. The 0.15, 0.2 and 0.3 ohm heat on nickel-chrome, the values from 0.4 ohm upwards on iron-chrome-aluminium, the family Kanthal belongs to.

Those brackets explain why the 0.15 and 0.2 ohm belong on 80 W devices. A 0.15 ohm at 70 W passes roughly 21.6 A at 3.24 V, while a 1.2 ohm at 11 W draws only 3.03 A at 3.63 V. A device capped at 40 W, such as the GTX One Pro or the Luxe X2, cannot even reach the bottom of the 0.15 ohm bracket.

Two brackets for one value, which to follow

Vaporesso’s own online shops nonetheless show different figures for two references.

On those pages the 0.6 ohm is listed at 20 to 30 W with a best setting of 28 W, and the 0.8 ohm at 12 to 26 W with a best of 18 W. Both best settings sit above the top of the bracket printed on the box. British listings muddy the water further, with at least one large UK retailer giving the 0.8 ohm as 12 to 20 W.

We take the bracket on the box, the most cautious of the lot, as the reference for a new coil. On a 0.8 ohm, starting around 12 or 13 W and stepping up 1 W at a time limits the risk of scorching the cotton on the very first tank.

The 1.2 ohm raises a similar question. The manufacturer sells two parts at that value, a Regular with a conventional wound wire listed at 8 to 12 W, and a Mesh given at 7 to 11 W in its shops. Some retailers describe their 1.2 ohm as a Kanthal coil and others as mesh, so read the exact wording on the pack.

GTX and GTX 2, the three seal question

The difference between GTX and GTX 2 shows neither in the value nor in the bracket but on the body of the coil. Recent versions carry three silicone seals, older stock only two.

Vaporesso states that the pod of its GTX Go is designed for the triple silicone version, and at least one large British retailer advertises that third seal as leak protection. A two seal coil fitted to a recent pod is therefore the first suspect when liquid escapes from the base.

Vaporesso GTX coils and compatibility, the pod decides

Vaporesso GTX coils physically fit a long list of the brand’s devices, yet the device body does not set the accepted values. The cartridge or tank does, and several models rule out the low values from the start.

One DTL pod, one MTL pod

The Luxe XR and the Armour G each come with two distinct cartridges. According to the manufacturer, the DTL version takes 0.15 to 0.4 ohm and the MTL version 0.6 to 1.2 ohm. The Luxe X2, which also runs on the Luxe XR cartridge, only recognises values from 0.6 ohm.

Devices closed to the low values

Neither the GTX One with its GTX Tank 18 nor the Luxe PM40 pod accepts anything below 0.6 ohm, which leaves the 0.6, 0.8 and 1.2 ohm, and the manufacturer’s list puts the Target PM30 in the same group. One step lower, the xTank T takes 0.4 to 1.2 ohm.

Devices open to the whole range

At the other end, the Swag PX80, the Target PM80 and PM80 SE and the Gen Nano appear on the manufacturer’s list for every value, the 0.15 ohm included. Owners of the Gen PT60 and PT80S get the full range too, through the xTank cartridge.

GTX is not GTi

Last trap, the name. GTi coils are fitted to the Armour Ultra, the Gen 200 and the iTank T, and the manufacturer is explicit that they do not swap with GTX.

Liquid and nicotine strength by value

The manufacturer pairs each value with a liquid. From 0.15 to 0.3 ohm it recommends a high vegetable glycerine mix, from 40/60 to 30/70, in freebase nicotine at 0 to 6 mg/ml, and does not list nicotine salts at all. From 0.4 ohm the range moves to 50/50 or 40/60, and nicotine salts come into the chart.

The global chart also pairs the 0.8 and 1.2 ohm with salt strengths reaching well above anything sold legally here. In the UK, nicotine containing liquid is capped at 20 mg/ml and sold in bottles of no more than 10 ml, so on British shelves the real decision on those values is the PG/VG ratio.

Too thin a liquid on a low value can cause leaks and early wear, which is why at least one retailer warns against a plain 50/50 on the 0.15 ohm.

Fitting, priming and judging wear

The leaflet comes down to two moves, empty the pod or tank before pulling out the used coil, then push the new one fully home. On a GTX Tank, the coil pulls straight out once the base is unscrewed.

Refillable tanks and pods are limited to 2 ml in the UK, which is why the GTX Go ships here with a 2 ml pod rather than the 5 ml or 3.5 ml of the global version. A smaller pod runs dry sooner, and a dry wick on a fresh coil is the quickest way to burn it.

A few drops of liquid on the cotton, through the side ports, speed up the soak. Once the pod is filled, wait about ten minutes and start at the bottom of the bracket, with the same patience described in our Voopoo Drag X coil change walkthrough.

The manufacturer counts one to two weeks, or five to six refills, before the flavour fades, and up to two or three weeks for light mouth to lung use. A drop in flavour and vapour, liquid creeping up the chimney and then a burnt taste signal the replacement.

FAQ

Questions that come up at the point of ordering, alongside values and compatibility.

What do DTL, RDL and MTL mean on the leaflet?

DTL stands for direct to lung, where the vapour goes straight into the lungs. RDL is restricted direct lung, a tighter version of the same draw. MTL means mouth to lung, a two stage draw that passes through the mouth first.

How many coils come in a pack?

Ready-made GTX coils are sold in fives. The GTX RBA is the exception, a single deck supplied with two wires, screws, seals, cotton and a screwdriver.

Is the GTX RBA worth it?

For anyone comfortable building a coil, yes, on the devices it is meant for. The manufacturer lists it for the Luxe 80 and 80S, the GTX Go 40 and 80, the Swag PX80, the Target PM80 and PM80 SE, the Gen Nano and the Xiron, with a reference value of 0.7 ohm.

Which coil comes with the GTX Go 40 and 80?

The GTX Go 80 arrives with a 0.2 ohm GTX mesh coil, the GTX Go 40 with a 0.6 ohm GTX mesh coil. For a tighter draw on the Go 40, the 0.8 ohm, which the manufacturer also lists for that device, takes over.

Single mesh or dual mesh?

Dual mesh only exists in 0.15, 0.2 and 0.3 ohm, with the same brackets as the single version. The manufacturer presents its two layer mesh as more even in heating and longer lasting, an argument aimed mainly at direct lung vapers.

Choosing Vaporesso GTX coils by the box, not the badge

Read in the right order, the GTX range is not confusing. The cartridge sets the accepted values, the number of seals separates the GTX 2 from older parts, and the bracket printed on the box, more cautious than the figures shown online, gives the starting point for the setting.

Well chosen Vaporesso GTX coils follow those three steps before flavour even comes into it. The same reading applies to our Zeus coils breakdown, to the Geekvape series and to the Voopoo PnP platforms, and to any consumable whose name covers several generations of parts.

Editorial content for adult readers only. Nicotine is a highly addictive substance, and nicotine vaping products are not for sale to anyone under 18 in the UK. This article is not a buying recommendation.