OBS KFB AIO Kit Preview | First Time for Everything

OBS expand their product offering with their very first attempt at a portable AIO vape kit.



Founded in 2014, OBS Tech Co Ltd is probably best known for their extensive range of tank atomizers.

Having only recently turned their attention towards vape mods, the OBS KFB AIO Kit is their flagship entry within this category.

Boasting a fashionable design and compact construction, we take a peek at what is on offer.

Retail Price: $29.99 – $59.99
Colors: Black, White, Red, Steel, Teal

OBS KFB AIO Kit Specs and features


  • Resistance: 0.3 ohm
  • Atomizer Coil: BVC 25 – 50 W
  • E-liquid Capacity: 2.0 mL
  • Uses a single 18650 Li-ion battery (not included)
  • Wide Side Fill Slide
  • Delrin Drip Tip
  • Glass E-Liquid Window
  • 5-Click On/Off
  • Top Airflow Valve
  • Wide Bore Delrin Drip Tip
  • Depth 20 mm (0.79 inch)
  • Height 130 mm (5.12 inch)
  • Width 20 mm (0.79 inch)
  • Weight 100 g (3.53 oz)

Kit Contents:

  • 1 x OBS KFB Vape Pen
  • 1 x 0.3 Ohm Atomizer Coil (pre-installed)
  • 1 x Replacement Coil
  • 1 x Retail Gift Box

Not much more than meets the eye

Due to their inherent simplicity and convenience, vape pens remain a popular choice amongst beginners. Typically marketed as “all-in-ones starter kits”, these devices include a basic cylindrical body that houses the power source (e.g. battery), paired with simple tank atomizer that is most often of the non-rebuildable variety.

Measuring just 21 mm in diameter, with a height of 130 mm, the KFB Kit is the perfect representation of this traditional AIO vape setup. Despite its compact size, the main body accommodates a single 18650 cell in addition to a concealed, 2 mL tank atomizer.

The mod itself reaches a 50-Watt output maximum, which is actually tons of power given its size. Together with pre-made BVC coil heads, rated for use in the 25-50 W output range, users can expect good clouds and decent flavor throughout.

Small and stylish, the KFB AIO Kit promises excellent sub-ohm vaping.

Additional features include a small, front-facing firing button, side-filling ejuice ports, a 12 mm resin drip tip as well as adjustable top-airflow control.

Outwardly attractive and equipped with basic functionality, the OBS vape pen is an otherwise unremarkable AIO kit. However, given the success of the OBS atomizer series in general, the real measurement of its design hinges on the performance of the atomizer.

Are you an OBS devotee? Share your thoughts on this kit with us in the comments below!

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Saska Nel
A marketing manager by day and an avid reader - and vaper - by night, I came into the vape scene almost by accident and have never looked back. You will find me in sunny South Africa where I am mostly always curled up on the couch with a good book and a fruity vape. At other times, I am known to indulge my unhealthy obsession with musical theatre and live comedy shows, in that order.

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