GTX One Pro | what its first reviewers report

The Vaporesso GTX One Pro marked, in the words of one of its reviewers, the brand’s return to the screw-on tank and box format after a long run of pods. The first published reviews, from summer 2025, praise a well finished kit. They disagree on one specific point, which coil to use, and one of them flags a battery gauge that behaves oddly near the end of a charge. Here is what its reviewers actually reported, and what their testing does not yet cover.

What reviewers take away from the GTX One Pro

The two detailed reviews consulted agree on the essentials. The finish and the leak resistance of the XTank T win everyone over, and the device is judged well designed. The more detailed write-up adds that the 1.2 ohm coil convinces for mouth-to-lung vaping.

The disagreement is about the 0.6 ohm coil fitted from the factory. One review finds no fault with it, the other finds it a little cramped in a tank designed first for mouth-to-lung vaping.

Neither covers several months of use. The impressions gathered here therefore describe the first weeks of the GTX One Pro, not yet how it ages.

The kit spec sheet, as Vaporesso publishes it

Vaporesso lists a 3000 mAh built-in battery, adjustable output from 5 to 40 W, a 0.87 inch OLED screen and USB-C charging at 5 V and 2 A. The complete kit measures 137.25 x 23.2 x 30.05 mm and weighs 140 g.

The XTank T holds 3 ml in its standard version. In the UK, refillable tanks are capped at 2 ml, and Vaporesso offers a 2 ml TPD version that meets that limit. Nicotine e-liquid sold alongside it is limited to 20 mg/ml in 10 ml bottles.

The box contains the mod, the XTank T, a preinstalled 0.6 ohm GTX Mesh coil, a second 1.2 ohm coil, a spare glass, two O-rings and a USB-C cable. According to Vaporesso, the battery lasts up to three days, an estimate based on its own lab testing.

First impressions, from unboxing to the first draw

The review published by Planet of the Vapes in June 2025 and the detailed write-up posted on the same site’s forum in September 2025 describe the hands-on stage in close detail. Three topics come up in both.

A classic box mod, in a slim version

The forum reviewer measured each part. The mod alone comes to 85.5 x 23 x 30 mm and 89 g, and the XTank T weighs 49 g. Its base is 19 mm wide, widening to 22 mm at the glass, which explains the conflicting diameters shown by different retailers.

The main review describes a well-balanced device despite its tall, slim shape. The wrap changes with the colour, textured faux leather or a silicone with an almost velvety feel.

Controls and the lock

The sliding lock on the front is praised by the main review, and the forum write-up details how it works. It disables the fire button, while a separate Watt Lock function only freezes the power setting.

The forum write-up does find the adjustment buttons a little too small. The same reviewer also notes average stability when the device is set down, since the rubberised base does not cover the whole footprint.

Top filling that stays dry

The XTank T top cap unscrews fully, replacing the sliding system of the iTank T. The main review describes putting a filled kit back in its box until the review began, then finding the box completely dry. Both reviewers link that result to the airflow sitting at the top of the tank.

The two included coils, where opinions split

Vaporesso supplies two GTX Mesh coils, and the reviewers do not rate them the same way. This is the choice that weighs most on how the GTX One Pro feels in use.

The 1.2 ohm, a success for mouth-to-lung vaping

Rated from 8 to 12 W, with 11 W recommended, the 1.2 ohm coil is the only one of the two the forum write-up rates without reservation. That reviewer finds it pleasant to vape, in a tank described as built first and foremost for mouth-to-lung vaping.

The 0.6 ohm, cramped according to one reviewer

Fitted from the factory, the 0.6 ohm coil runs from 20 to 26 W. The main review does not single out either coil, raises no reservations and describes plenty of vapour and flavour. The forum write-up is more measured, with airflow barely sufficient even fully open, flavour definition dropping and a little warmth on closely spaced draws.

The same reviewer advises taking time to prime the 0.6 ohm, which carries more cotton. The 0.4 and 0.8 ohm GTX coils are also compatible. Other values in the GTX range do not appear on the manufacturer’s list for this kit.

Battery and modes, what shows after a few days

The claimed three days of battery life leave the main review sceptical, with the author calling it a little optimistic while noting it depends on each person’s habits.

The forum write-up reports something more specific. The gauge falls steadily to about 30 per cent, then drops quickly to 20 per cent, the point at which the mod asks to be charged. Worth knowing, so as not to rely on the last third of the indicator.

On modes, the menu offers Pulse, close to a standard wattage setting, and Eco, which that reviewer felt ran 10 to 15 per cent below the displayed power. The main review says it noticed little difference between the two.

What to keep an eye on over the weeks

With no review published over several months, the parts worth watching follow from the kit’s design and from the reviewers’ remarks.

The XTank T relies on a glass and seals, with spares included in the box. A leak that appears over time therefore points to the seals first, before the coil. The built-in battery sets the lifespan of the whole device, as on the Innokin Kroma Z.

The 510 connector leaves a way out. The forum reviewer fitted the XTank T to other mods without trouble, and the mod takes tanks up to about 22 mm. Unlike the Voopoo Drag X3 with its removable battery, here it is the tank that is easiest to replace.

FAQ

Five practical questions come up about this kit, from coil compatibility to error messages.

Which GTX coils does the GTX One Pro accept?

Vaporesso lists four values from the GTX Mesh range, 0.4 ohm (26 to 32 W), 0.6 ohm (20 to 26 W), 0.8 ohm (12 to 16 W) and 1.2 ohm (8 to 12 W). Other values in the GTX range do not appear on that list.

What do the AT SHORT and AT CHECK messages mean?

According to the manual quoted by the forum reviewer, AT SHORT signals a coil resistance that is too low or a short circuit, and AT CHECK a tank that is not detected or a resistance that is too high. OVER TIME appears after 10 seconds of continuous firing.

Does Smart mode set the power by itself?

Yes. Available in both Pulse and Eco, it sets the power from the coil resistance the mod reads. The main review finds it effective for anyone who would rather not adjust settings.

Can another tank be fitted to the mod?

The 510 connector allows it. According to the forum reviewer, a 22 mm tank sits almost flush with the mod, and a 23 mm one overhangs slightly without getting in the way.

How many drip tips come with the kit?

Sources differ. The official contents list mentions one straight drip tip, while the forum reviewer received two, one for mouth-to-lung and one for restricted direct-lung vaping. How a drip tip wears is covered in our piece on drip tip wear over the weeks.

Vaporesso GTX One Pro, impressions still young

The first reviewers agree on a well-finished mod and a leak-resistant tank, and the more detailed write-up singles out a successful 1.2 ohm coil. The 0.6 ohm divides opinion more, and the battery gauge calls for a little caution near the end of a charge.

The GTX One Pro does not yet have the hindsight of a device followed for months. As with any vaping hardware, reviews published over time will show whether these first impressions hold.

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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.