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Vapefly Siegfried 21700 Tube Kit

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Vapefly Siegfried Tube Kit

The Vape Siegfried Tube Kit is a gorgeous pen-style vape, forged in the fires of creativity and collaboration between Vapefly and German103. As soon as you hold this device, you can tell it’s made from high-quality stainless steel. Aesthetically, it has a dragon engraving on the body of the Vapefly Siegfried for a seriously unique design.

Inside the Siegfried Tube Mod is the 3S chip, providing multiple smart protection systems for a better vaping experience. It has short-circuit protection, 10 second cut-off protection, high temperature protection, and more! You can vape safely knowing the 3S chip has your back.

The Vapefly Siegfried is powered by a single 18650/20700/21700 battery, providing long-lasting power. However, when the inevitable time comes that your battery will be in need of a recharge, you won’t be caught by surprise as Vapefly have added a simple LED battery-life indicator placed subtly above the fire button. It will flash either green, blue or red which all indicate different battery life.

Three Vapefly Siegfried 21700 Tube Kit placed next to each other in Sterling Silver, Black and Gunmetal.

The Vapefly Siegfried Kit comes equipped with the innovative Siegfried RTA, perfect for vapers who enjoy that extra touch control. The postless deck design allows for easy mesh coil building and normal single coil building, and the Firebolt M cotton that comes with the Siegfried kit provides such fabulous flavour that it’s hard to believe. As well as this, the side airflow design helps to create superior flavour and greater precision over your vape experience.

Experiment with three different types of mesh coils to see what coil you enjoy the most. This kit comes with the M1 Mesh wire Ni80 0.2ohm and the M2 Mesh wire KA1 0.2ohm allowing vapers to experiment with the Siegfried Mesh RTA. The M4 Grid Mesh Wire KA1 0.18ohm is sold separately.

Vapefly’s exquisite craftsmanship has never been more obvious than with this gorgeous kit. So what are you waiting for? Grab yours now!



163.0mm x 25.2mm

Drip tip

810 drip tip


Stainless steel



Battery type

1 x 21700/18650/20700 (Not included)

Output mode



Fantastic collaboration between German 103 & Vapefly
Incredibly innovative Anti dry burn system
Siegfried Mesh RTA designed with a side-airflow for better control over your cloud production and flavour
Siegfried RTA is compatible with 3 different types of mesh coil or standard single coils
Easy to use top-fill design
Clever and simple LED indicating battery life
Round, intuitive fire button
3S chipset that allows you to vape safely thanks to multiple safety protections
Nano-coating on the 3S chip

Image is split into four different sections. First image shows a labelled deconstruction of the different features of the Vapefly Siegfried Tube Kit. The labels are “Drip tip, top cap, middle cap, glass tube, airflow control, deck, 510 connector, fire button, LED indicator, tube, 16850 adapter and battery cover. The second image shows a graphic of each different battery that is compatible with the Siegfried Tube Kit, with the sterling silver body of the vape next to it. Text reads “Battery type. Powered by replaceable single 18650/20700/21700 battery, ensures continuous power supply when using the Siegfried Kit. Third image shows the LED battery life indicator, showing how the green, blue and red light indicate different battery levels. In the middle of the image there is a sterling silver Siegfried tube kit, highlighting green LED light to show what it looks like in use. The text reads “LED indicator. LED indicates different battery levels. Green light: 3.8V or above, blue light: 3.4V-3.8V, red light: 3.4 or below. Fourth image shows the 3S chip and the multiple protections. Texts reads: “Short-circuit protection, reversed battery connection protection, over-current protection, high temperature protection, nano-coating chip to avoid water/liquid intake, 10s cut-off protection”.

It comes with

Siegfried Mesh RTA
Prebuild Coil
Mesh coil(Ni80, KA1)
Firebolt M cotton
Glass tube
User manual
Screw driver
Coil Rod
German 103 Card
Siegfried Tube Mod
18650 battery adapter
User manual
Safety card
Warranty card

Specification: Vapefly Siegfried 21700 Tube Kit


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VAPEFLY was established in 2017 in Shenzhen, China to better the vaping experience by creating an innovative product that would offer users simple to use, high-quality vape device with maximum flavour. VAPEFLY aims to become a global leading brand for high-end vape products and e-liquids, through continuous innovation and efforts in quality control. Vapefly's research and design team is made up of various individuals each with their own respective industry experience of bringing to market popular products such as GoPro cameras, Bluetooth audio devices, mobile phones, and more.  The Vapefly team works with a wide network of engineering and product design companies to find new innovative ways to develop products for the vaping industry. Customisability has always been a key aspect of Vapefly’s vision - that’s exactly why you’ll find a large amount of rebuildables among our UK range! 

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