Reviewing this vape pen from Sigelei, the Sibra F with the Sobra Mini Sub-Ohm Tank was rough in the beginning. If it weren’t for the low price, under $40, I would have to give this device a “not recommended” stamp because as a Direct Lung vape pen it doesn’t quite make it, and it’s certainly not an MTL vape pen. Let’s look deeper into this 2-piece vape pen…


The Sigelei Sibra F Starter Kit is one of two new devices released by Sigelei on the same day. The other, which will be reviewed very soon, the Sigelei Sibra E2 80W TC Kit. The Sibra F, with its Sobra Mini Tank is quite eye-catching, and there are some good specs to go with both the Battery Stick and the mini Sub-Ohm. Put together, these two devices are not in any way spectacular, or innovative. They’re just “okay”. For the price, ‘okay’ could be good enough for many vapers.


While a Direct Power Output device, the Sibra F offers up short-circuit protection, low battery indicator, ‘No Atomizer’ indicator, and a smooth, sturdy 510-connector. Sitting at 24.5mm Diameter, 127mm Height

(with tank affixed), it’s about average for modern vape pens.


I’d say the biggest feature highlight is the 2A charging through the microUSB port and included cable. If you’re a vaper on a budget and don’t want to sit around for a couple of hours waiting for a full charge, the 2A charger can get it done in one hour.


The Sibra F is a  vape pen system integrating a 3000mAh rechargeable battery and snazzy snakeskin pattern that feels like a vape pen wrap, but it isn’t.  After a full recharge I was able to get just over 6 hours of vaping from the 3000mAh, which isn’t good nor bad, but simply ‘fine’.


Built from stainless-steel and then completely wrapped in one of several snakeskin patterns, it has Battery Life Indicator sitting behind the fire button.  No display, no adjustment buttons or wheels, a true AIO Vape Pen.



The various snakeskin patterns are colorful, and Sigelei made the right decision to use the same patterns for the Sobra Mini tank in order for the Sibra F Kit to look uniform. The color/patterns include Available in Serpentine Red, Python Gray, Serpentine Yellow, Kingsnake White, Serpentine Blue.



The Sigelei Sibra F is a one-button 5-click on/off vape pen… simply press and vape. Because it does use an integrated battery, I recommend turning it off if you’re finished using it. It will make a substantial difference in battery life.


Because the Sigelei Stick battery is a Direct Power Output device with a coil resistance range of 0.15-3-ohm, this is a good segue into the Sobra Mini Tank.

The Sobra Mini Sub-Ohm Tank

The Sigelei Sibra F is a simple battery stick with a voltage output of 2.5-4V, beyond the simple specs there’s nothing much left to say until the end. What makes or breaks any vape pen system is the tank and its coils.


And the Sobra Mini is unlike most sub-ohm tanks I’ve used. To fill the tank, the user twists the knurled ring on the top cap a quarter-turn. Once the ring is turned it sort of rises a bit and reveals a hard-to-see when indoors side-fill system. Side fill tanks are few and far between, though the Sobra Mini is fairly easy to use.


Finally, the Sobra Mini has a dual bottom adjustable airflow slots on the bottom cap. For a true Direct Lung vape experience, I believe the Sobra Mini should have had 3 airflow slots, or the two it does have should’ve been made wider. The two airflow slots are smaller than you might expect, making for a tighter direct lung draw.


Its bubble glass tank section allows the Sobra Mini to hold up to 5.5mL of eJuice, and the replacement glass that is included in the starter kit is another bubble glass section (something all brands should do).


The Sobra Mini is 24mm wide are the base, constructed with 304 Stainless-Steel and Sodium borosilicate glass, a little better than container glass, but it’s not Pyrex.


The Sobra Mini uses a 510-drip tip this time out, but the ‘hole’ to draw from is rather narrow, making long, deep inhales a bit of work. The Coils however, is quite different (and sort of wasted on the Sobra Mini)


The Sobra Mini uses the Sigelei SnowWolf Coils, and the starter kit includes 1x 0.28ohm WF Mini Coil

And 1x 0.25ohm WF-H Mini Coil. Replacement Coils can be picked up at Element Vape

The SnowWolf WOLF WF Replacement Coils (stainless steel wires)  are new to the SnowWolf replacement coil line introduced with the WOLF Sub-Ohm Tank. The WF-Coil series uses a dedicated single inlet and outlet that takes the air from the airflow slots on the bottom cap and pushes it past the coil and cotton combination to create dense clouds and heavy flavor, dependent on which tank you use of course. The Coils come in a pack of 5.

SnowWolf Wolf (Sibra) Replacement Coils Features:

  • SnowWolf WOLF Tank Coil System
  • 0.2ohm WF Coil – Rated for 60-150W, Recommended 80-140W
  • 0.16ohm WF-H Coil – Rated for 100-230W, Recommended 120-200W
  • Stainless Steel Heating Element
  • 100% Organic Fiber Cotton
  • Comes in a pack of 5.

Vaping with the Sibra F and Sobra Mini

Honestly, it’s not a bad vape pen, but with so many other choices out there about the same price, you either than to love Sigelei products, or you want to use a Direct Lung vape pen that will cause you to draw hard for a full head of vapor.


The real problem for me (I got used to the shorter direct lung pulls) the instant I took my first draw from device I knew the coils couldn’t be Kanthal. Sure enough, as I read through the material I discovered that Sigelei was using stainless steel coils. Stainless steel heating elements are getting better with flavor production, but they are still far from the superior Kanthal heating elements. Because of that, my trusty eliquid tasted a little off. Not terrible, just ‘off’. This is obviously a personal thing, I know several people that love stainless steel coils for flavor and the fact that these coils can be used in any mode, including temperature control.

Bottom Line

I hate to say it, but the Sigelei Sibra F and Sobra Mini are just “average” for 2018. It is a completely ‘take it or leave’ vape pen. If you want more power and bigger clouds in a vape pen that by all means check out devices like iJoy Wand (reviewed here), or the Vaporesso Cascade One (reviewed here) for a similar size device with a lot more to offer. Right now, the Vaporesso Cascade One is nearly $10 less than the Sibra F and Sobra Mini.


The way I see it, the products manager at Sigelei decided Sigelei needed a new vape pen, decided to build a mini version of the Sobra tank, and banged out the Sibra F in a matter of weeks.


My Score: C

Sigelei Sibra F Device Features:

  • Dimensions – 24.5mm Diameter, 127mm Height
  • Integrated 3000mAh Rechargeable Battery
  • Voltage Input Range: 3.3-4.2V
  • Voltage Output Range: 2.5-4.0V
  • Resistance Range: 0.15-3.0ohm
  • Coil Resistance: 0.2ohms
  • Direct Power Output
  • Superior Brass and Stainless-Steel Construction
  • Stylish Snakeskin Design
  • Single Fire Button Operation
  • Battery Life Indicator Light
  • Short Circuit Protection
  • Low Battery Power Indicator
  • No Atomizer Indicator
  • MicroUSB Port – 2A Max Charge
  • 510 Connection
  • Available in Serpentine Red, Python Gray, Serpentine Yellow, Kingsnake White, Serpentine Blue

Sigelei Sobra Mini Sub-Ohm Tank Features:

  • 24mm Diameter
  • 5.5mL Maximum Capacity – Bubble Glass
  • Superior 304 Stainless Steel
  • Glass Reinforcement
  • Adjustable Dual Bottom Airflow Control Ring
  • Top Cap Quarter Turn Side-Fill System
  • Sigelei WF Coil Family
  • 0.28ohm WF Mini Coil – rated for 30-60W
  • 0.25ohm WF-H Mini Coil – rated for 40-80W
  • 510 Drip Tip
  • Gold-Plated 510 Connection
  • Detachable Structure


  • 1 Sibra F Mod
  • 1 Sobra Mini Tank
  • 1 0.28ohm WF Mini Coil
  • 1 0.25ohm WF-H Mini Coil
  • 1 USB Cable
  • 1 Sealing Ring
  • 1 Glass Tube
  • 1 User Manual
  • 1 Warranty Card
  • 1 Pack of Spare Parts