Vaporesso GTX One Pro vs Drag S3, the 3000 mAh duel

Same 3000 mAh battery, same elongated tube shape, same place in their makers’ line-ups. The Vaporesso GTX One Pro and Voopoo’s Drag S3 are chasing exactly the same buyer. We separated them on six measurable criteria, namely battery capacity, maximum power, tank capacity, weight, compatible coils and the documentation each brand publishes. The verdict is not the one the spec sheet hints at.

Vaporesso GTX One Pro or Drag S3, which to choose

The Vaporesso GTX One Pro wins for anyone after a tight or restricted lung draw who wants to stay in control of their kit two years from now. Its XTank T comes apart, fills from the top and accepts four coil values, from 0.4 to 1.2 ohm.

The Drag S3 wins on capacity and raw power, with 5 ml rather than 3 and 60 watts rather than 40. In return it imposes its PnP X cartridge, a proprietary consumable whose future availability depends on Voopoo alone.

The duel table, figure by figure

Both manufacturers publish their specifications on their official pages, and every row below comes from them. An empty cell means the brand does not publish the figure.

Criterion	Vaporesso GTX One Pro	Voopoo Drag S3
Battery	3000 mAh built in	3000 mAh built in
Power	5 to 40 W	5 to 60 W
Capacity	3 ml (TRPR cap 2 ml)	5 ml (TRPR cap 2 ml)
Weight	140 g
Dimensions	137.25 x 23.2 x 30.05 mm
Coils	GTX 0.4 / 0.6 / 0.8 / 1.2 ohm	PnP X 0.6 and 0.8 ohm
Screen	0.87 inch OLED	0.96 inch TFT
Charging	Type-C, 5 V / 2 A	Type-C, 5 V / 2 A

The table shows a clear gap on two rows only. Everywhere else the two devices are level, so it is use that decides rather than the spec sheet.

What a 2 ml cap really changes

Under the Tobacco and Related Products Regulations 2016, tanks and cartridges are limited to 2 ml in the UK. The stated difference, 3 ml against 5 ml, therefore only concerns markets where no such cap applies, and for a British reader this row cancels out.

It is the detail retailer listings almost always forget, and it is enough to turn the comparison round. For a UK buyer, the Drag S3’s capacity advantage simply disappears.

What an extra 20 watts allows

The Drag S3 goes up to 60 watts, the Vaporesso GTX One Pro stops at 40. On coils of 0.6 ohm and above that headroom is useless, since the useful range stays below 30 watts.

It becomes an argument if you go down towards 0.15 ohm and a full direct lung draw. The Drag S3 then accepts settings its rival refuses.

Coils and longevity, the real tipping point

A device is kept for two or three years, a coil for a fortnight. Consumable availability therefore counts for more than any power figure.

A tank you can strip down against a sealed cartridge

The XTank T of the Vaporesso GTX One Pro is a conventional tank, with replaceable glass, a screw-in coil and accessible seals. A leak can be fixed, and a broken glass section is an inexpensive part to replace.

The Drag S3’s PnP X cartridge is a single block. When the cartridge body cracks or the seal tires, the whole unit goes in the bin, fresh coil included.

Four values against two

Vaporesso lists four compatible GTX coils, from 0.4 to 1.2 ohm, and ships the kit with a 0.6 and a 1.2. That spread covers a tight draw and a restricted lung draw without changing device.

Voopoo frames its Drag S3 around two values, 0.6 and 0.8 ohm, in the same register. The PnP X platform offers other references, but the kit does not claim such a wide range.

Handling and readability day to day

Both devices share the tube format, held in the full hand rather than at the fingertips. After a week, it is the interface details that make the difference.

Vaporesso publishes a weight of 140 grams and precise dimensions of 137.25 by 23.2 by 30.05 millimetres. Voopoo gives neither weight nor dimensions for the Drag S3, which rules out any fair comparison on that row.

The screen follows the same logic. The 0.87 inch OLED of the GTX One Pro displays seven pieces of information, while the Drag S3’s 0.96 inch colour TFT bets on readability in bright sunlight. Neither is hard to read.

Claimed and real battery life of the Vaporesso GTX One Pro

Both devices start from the same 3000 mAh reserve, but they do not spend it at the same rate, and that is where the duel really plays out over a day.

Vaporesso claims up to three days of use for the GTX One Pro. Treat that claim with care, since it depends entirely on the chosen power and the number of puffs, two variables no manufacturer fixes.

What can be checked is the mechanism. A 1.2 ohm coil used at around 14 watts draws less than half the energy of a 0.3 ohm coil pushed to 30. A device capped at 40 watts protects its battery life by design, whereas one open to 60 watts invites you to spend it.

The Drag S3 pays for its versatility here. Its identical reserve drains faster as soon as you use the top of the range, and a midday recharge becomes likely, something the 40 watt format does not call for.

The verdict by vaper profile

A close duel is decided by use, never by a points total. Here is how we would allocate the two devices.

First device after a closed pod

The Vaporesso GTX One Pro takes the lead. Its 1.2 ohm coil gives a tight draw that feels familiar straight away, and the four-value range leaves room to progress without buying new hardware.

Experienced direct lung vapers

The Drag S3 wins. Its 60 watts and PnP X compatibility open up settings the 40 watt format cannot reach.

Heavy users watching running costs

A tie under British rules, since both tanks are capped at 2 ml. The decision then turns on the consumable, and a replacement glass costs less than a complete cartridge, which hands the advantage back to the tank you can strip down.

Anyone still weighing a compact format against a battery box will find a decision framework in our comparison of the Voopoo Drag H40 and the Drag X3 box.

Frequently asked questions

Five questions come up again and again around these two devices, on points the duel table does not cover.

Does the GTX One Pro take older GTX coils?

Vaporesso lists four compatible values for the XTank T, from 0.4 to 1.2 ohm, in the GTX Mesh family. A GTX coil from an older kit is not automatically from the right series, so check the reference printed on its body before buying.

How long does a full charge take?

Both devices charge over Type-C at 5 V and 2 A according to their official pages. Neither manufacturer publishes a charging time, so any figure quoted elsewhere comes from a reviewer’s measurement rather than from the maker.

Can you fit a rebuildable atomiser?

No. Neither the GTX One Pro nor the Drag S3 has a 510 thread, as their tanks are specific to each device. For that use you need a box mod with external batteries.

Are these devices suited to outdoor use?

Neither brand claims a water resistance or impact rating on these models. For building sites or hiking, look at the toughened ranges instead.

How does the GTX One Pro compare with a 200 watt box?

It plays in a different category. A dual battery box aims at power and adjustable battery life, while the GTX One Pro and the Drag S3 focus on a small footprint and easy filling.

What the Vaporesso GTX One Pro duel says about 40 watt pods

The Vaporesso GTX One Pro wins this contest by a short head, on repairability and coil range rather than on power. The Drag S3 remains the better choice for committed direct lung vaping.

Between these two 3000 mAh devices, the question is not which spec sheet impresses most. It is which consumable you are willing to keep buying for two years, and on that count the Vaporesso GTX One Pro keeps the edge.

This head to head is written for adults and is not a buying recommendation. In the United Kingdom, vaping products may not be sold to people under 18, and nicotine is a highly addictive substance.