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Released by Vaporesso, the Gen Fit 40 will delight a large number of vapers. Its 2000 mAh of autonomy, its 40W of maximum power and the 3.5ml offered by its iTank X atomizer leave no doubt about it. On the other hand, this kit has a 0.42″ OLED display, is compatible with Vaporesso’s GTX coils and is designed for both MTL and RDL draws. The Gen Fit 40 stands out as a beautiful piece.




Exemplary ergonomics

Vaporesso has thought out the design of this Gen Fit 40 kit in an excellent way, creating a compact device with a minimalist aesthetic that is also ergonomic. Indeed, Vaporesso has given this model dimensions of 117.9 x 32.25 x 22.53mm. These dimensions make it a slim, slender kit that is easy to carry and pleasant to hold, especially since the curved lines that make it up provide comfort for the fingers and palm.

The activation button and the selection buttons are placed in a way that makes them easy to use. The same applies to the display at the top of the box. It is easy to read as it is not hidden by the hand. The user will therefore have a view of his settings while vaping.

A box with excellent performance

In terms of technology, there is nothing to complain about. The Gen Fit 40 kit has what it takes to offer enjoyable vape moments.

To begin with, its integrated battery reaches 2000 mAh. The user can therefore rest easy about the autonomy of this device. He will be able to vapour for a long time without having to recharge the battery which, by the way, requires a USB type-C cable (supplied) for this recharge.

Then, the power varies from 5 to 40W. It is therefore a significant power.

Finally, the display, already mentioned, is a 0.42″ black and white OLED screen. It provides information that allows for quality vaping. Among this information, there is the power, the coil value and the number of puffs.

The iTank X as an atomizer

Vaping with the Gen Fit 40 kit means vaping with the iTank X atomizer, which is not an insignificant atomizer at all. Its bulb tank offers a large capacity of 3.5ml and provides a more than satisfactory autonomy in e-liquid. Its filling is done from the top and without difficulty. It is enough to unscrew the top cap by making it perform a half-turn and the user will have access to the filling hole. The iTank X is equipped with SSS leak-proof technology. Thanks to this, the risk of leakage is limited.

Next, at the base is the airflow. The airflow is adjustable to allow for a tight or more airy vape.

Finally, this atomizer is compatible with the coils of the GTX series of Vaporesso, ie :

  • The GTX mesh coil of 0.3 ohm (32-45W)
  • The GTX mesh coil of 0,4 ohm (26-32W)
  • The 0.6 ohm GTX mesh coil (20-26W)
  • GTX mesh coil 0.8 ohm (12-16W)
  • GTX 1.2 ohm coil (8-12W)

The 0.6 and 1.2 ohm coils are included.

In addition, this atomizer benefits from Corex technology. This results in a precise and constant reproduction of flavours. A level of reproduction that is higher than normal.

The Gen Fit 40 kit from Vaporesso is a product that deserves our full attention. It is designed for both MTL and RDL draw and many vapers will be delighted, especially if they are new to vaping.

Contents : 

  • 1x Vaporesso Gen Fit 40 mod
  • 1x Vaporesso iTank X (3,5ml)
  • 1x GTX 1,2 ohm Regular coil
  • 1x GTX 0,6 ohm Mesh coil
  • 1x Extra Glass Tube
  • 3x O-ring
  • 1x Type-C cable
  • 1x Warranty card
  • 1x User manual

Additional information


midnight black, prussian blue, rose gold, sierra blue, space grey, taffy pink

Device type

Kits & Packs


Beginner, Medium

Kit type

Regulated boxs kits

External battery type


Battery life

2000 mAh

Micro USB

Charging only

Maximum output




Adjustable airflow


Capacity (ml)

3, 5 ml

Tank diameter

Ø 20 mm

Tank compatibily

20mm max.



Drip tip type




Electronic protections



0.5 to 1 ohm, More than 1 ohm


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