The Caliburn Tenet and Tenet Koko: Sleek, Durable, and Sturdy


by Vaping Daily Team

Updated: March 3, 2023

Caliburn Tenet Caliburn Tenet Koko Review

Review Score: 96/100

Price Range:
$29.99 - $37.99
Battery Capacity:
750mAh / 950mAh
Maximum Power Output:
16W / 18W
Iron Gray, Copper Red, Olive Green, Carbon Green, Red&Black, Black&White
Works with:
  • Eliquids icon


  • Non-spillage refill design
  • Easy to hold in hand with support for a lanyard
  • Sub-ohm support for more vapor production


  • The manual firing button has no lock control. That may result in accidental activations

Starting Price: $ 29.99

The Caliburn Tenet and Tenet Koko pod kits have a durable aluminum alloy body and compatibility with different G2 pods. Both have different activation approaches to vaping, with the latter featuring a draw-activated mechanism. Nevertheless, they are compact, with e-juice viewing windows and PRO-FOCS technology.
With the ability to function with three coils of 0.8 ohm, 1.2 ohm, and 1 ohm, the Caliburn Koko gives room for finetuning. Both products have long-lasting batteries, but the slender one has a lower rating at 750 maH. They are sleek to hold, with the Koko carrying the highest thickness at 18 mm.

Caliburn Tenet vs. Tenet Koko

Caliburn Tenet Caliburn Tenet Koko Review

The Pro-Flocs technology delivers delicious flavor, with even more finetuning with the airflow. Both have different ergonomics and feel in hand, with the Caliburn Koko featuring a shorter and wider design. However, the Uwell Caliburn Tenet has a grippy firing button, and the dual air ports deliver optimal airflow.

The triple resistance support in Uwell Koko lets you choose from a wide range of flavors and throat hits based on your tastes. Those who prefer more vapor can make adjustments to get more heat from the coils. In addition, both mouthpieces on the Tenet & Tenet Koko are press-fit for easy swapping of the pods.

Vapor production

An e-liquid with a 50/50 or high PG concentration produces the best results with the pod’s sub-ohm resistance. The Koko can push up to 18 watts, delivering maximum vapor from the 0.8-ohm pod. While the Caliburn pod can power up to 16 watts, it is both button- and draw-activated.

Kits content

The Uwell Caliburn Tenet pod systems come in a sturdy box that carries the mod, pod, user manual, and a USB-C cable. While that is standard, the kit adds two coils, the 1.2-ohm, and the 0.8-ohm, with a metal lanyard for attachment. Also, there is a selection of three colors with two gradient finishes for the Koko mods.
The Uwell Caliburn TENET packs the same components as the Koko pod kit but without the metal lanyard. It ditches the gradient finish for four color options: carbon black, copper red, iron grey, and olive green.

Internal building quality and design

caliburn tenet koko colors

The new Tenet pods come with an aluminum chassis, making them sleek but durable. The sturdy chassis surrounds the batteries, with a press-fit mechanism for the mouthpiece.
There isn’t much to their dimensions other than that the button-activated version is taller than the Koko at 110.9 mm compared to 73.7 mm.

Batteries Life

The Uwell Caliburn Tenet Koko has a bigger battery at 950 maH and can produce a maximum output of 18 watts. It also comes with a USB Type-C cable for quick charging.
The original Tenet is slightly less powerful, with a maximum output of 16 watts. Nonetheless, it has an equally capable battery of 750 maH.

Led Lights Meaning

Pressing the mouthpiece into the mod creates haptic feedback, with the LED lights blinking for a while before stopping. These lights indicate the battery percentage of the Tenet Koko as follows:

  • Green: Indicates from 60% to 100%
  • Blue: shows from 30% to 59%
  • Red: appears once the mod is below 30%

Pod Features

It takes a little force to disconnect theKoko pod from the battery. Once connected, the press-fit mechanism ensures a tight fit. This Tenet Koko review praises the design, but the pod is only partially all-in-one.
The coil can be removed and swapped by simply pulling it from the pod. Removing the mouthpiece reveals the top fill pot for e-liquid, providing excellent placement. Use a syringe to get an optimal refill with minimal spillage.
The airflow adjustment wheel is at the base, beside the port for the coil. It has fine adjustments that let users change how tight or loose their vaping experience is. Use your thumb or finger to roll the wheel and adjust the airflow.
Users will receive instant hits thanks to the excellent draw-activated and button-activated mechanisms. The coils provide excellent heating for the PG-optimized e-liquid. Nevertheless, the snap-fit mechanism prevents any jitteriness during vaping.


caliburn tenet open

With support for three coils, the Tenet Koko takes users above and below 1 ohm. It uses one coil at a time but can be effortlessly swapped. Remove the pod and pull the atomizer from below the mouthpiece.
Both devices come packed with two coils, the 0.8-ohm and the 1.2-ohm coil. The 0.8-ohm coil stays inside the pod during packaging, while the 1.2-ohm variant stays on as an addition. It’s easy to find the third 1-ohm coil and swap it out in the pod.
The resistance levels complement the power perfectly. They can take up to 18 watts of power with the Tenet Koko.

How long do coils last?

The Uwell Tenet Koko coils last between 10 and 14 days. They may, however, wear out much faster if the vaping frequency and overall usage are high. The e-liquid is another essential factor that determines the lifespan of the coils.

How to Use the Products

The Caliburn Tenet’s manual activation has no lock, presenting the risk of unwanted firing. On the other hand, the Koko uses a draw-activated mechanism. The sensor is quick enough to immediately recognize the draw and produce the vapor.
The first step will be to snap the pod into the battery mod. A haptic feedback system will confirm the connection and indicate if there is enough battery in the Caliburn Koko. Once set, take the device into your mouth and attempt a draw or press the firing button.
These products come ready for vaping. Remove the pod from the Koko, adjust the airflow, and press the mode button. The button-activated variant already has both parts connected.
Regarding refilling, it will take disconnecting the mouthpiece from the pod to see the top fill port. The position offers a quick and effortless refill. A syringe will work better with the Tenet Koko to avoid or reduce spilling the e-liquid.

Step-by-step guide-instructions on how to turn the products

  1. Connect the pod of the Tenet Koko to the battery mod.
  2. Plug in the USB-C cable to charge the device if it is low.
  3. Refill the e-liquid by removing the mouthpiece from the pod.
  4. Replace the mouthpiece and snap the pod back in place.
  5. Activate it by drawing or using the firing button.

Alternative Products on The Market

Caliburn Tenet vs. Geek Vape AU

geek vape au review

These products have different approaches with some underlying similarities, as follows:

  • The GeekVape AU combines an aluminum a leather finish to create a more premium feel, unlike the Caliburn Tenet.
  • Another difference is in power, where the Geek Vape AU gives more power at 20 watts.
  • Both products have 2ml pods with the Geek Vape AU support, lower resistance, and more colors.
  • These options are adequate, but Caliburn pulls ahead with a firing button.

Caliburn Tenet Koko vs. Vaporesso Zero S

vaporesso zero s

These devices are distinctly different in shape and design. Their significant differences and similarities include the following:

  • They both use the top-filling approach to avoid spillage.
  • The Vaporesso Zero S has a marginally lower battery capacity of 600 maH compared to 950 maH in the Koko.
  • Both devices support 1.2 ohms mesh coils, but the Vaporesso Zero S does not below 1 ohm.
  • The Caliburn Koko has a sturdier design with an aluminum alloy chassis.

Caliburn Tenet Specifications

Battery Capacity: 750mAh
Dimensions: 110.9mm X 25.1mm X 16.3mm
Maximum Power Output: 16W
Pod Capacity: 2mL
Pro-Focs technology:
Haptic feedback during pod and mod connection: Yes
Top-fill refill system:
Construction Material: Aluminum-alloy chassis
PCTG pod:
Colors: Iron Gray, Copper Red, Olive Green, Carbon Green

Caliburn Tenet Koko Specifications

Battery Capacity: 950mAh
Dimensions: 73.7mm X 50mm X 18mm
Maximum Power Output: 18W
Pod Capacity: 2mL
Charging Type: Type-C charging
Caliburn G/G2 Coils compatibility:
Construction Material: Aluminum-alloy chassis
Colors: Copper, Gray, Red&Black, Black&White


The Positives

  • Non-spillage refill design
  • Easy to hold in hand with support for a lanyard
  • Sub-ohm support for more vapor production
  • The pods have a snap-fit connection with the mods for quick and effortless removal
  • There are two coils in the kit

The Negatives

  • The manual firing button has no lock control. That may result in accidental activations
  • New Caliburn Tenet kits come with only one pod


The Caliburn Tenet & Koko can push out good power and support sub-ohm coils. They are adequate for those who want more vapor from their mod while maintaining adequate flavor. Still, they can deliver the mouth-to-lung hit with a few adjustments to the airflow and coils.
The 950 mah battery in the Koko has enough juice to power the device for a reasonable amount of time. Even when low, its 2A USB type-C cable can fill it up in no time. Also, both pods can be filled from the top, which keeps spills to a minimum and makes it easy to take out the coils.
Let’s hear your thoughts on this Caliburn Tenet & Tenet Koko review. Do you prefer Koko’s boxy design to its sibling’s? Drop your comments in the comment section below and share your thoughts with the community.

Published: March 3, 2023

Vaping Daily Team

The Vaping Daily team is a collective of expert vapers. We tried hundreds of vapes and happily review them here. Our guides, reviews, and top lists share the best practices from our experience . Subscribe to e-mails to get vape news and deals.


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