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Aspire K4 Starter Kit

The Aspire K4 Quick Starter Kit

The Aspire K4 is the granddaddy of the Aspire K family. It's the only device in the series that is capable of sub-ohm vaping. And while its size and performance are comparable to more advanced models, the K4 is still ideal for beginners.

What Is Sub-Ohm Vaping?

Sub-ohm vaping refers to vaping at atomizer resistance levels of less than 1 ohm. It's very popular among hardcore vapers for three main reasons: flavor, warm vapor, and lots of clouds.

Sub-ohm devices have bigger coils and bigger wicks, so they are able to spread heat over a larger surface area. This means lots and lots of vapor for cloud chasers. For smokers who have long enjoyed a thick puff of smoke, sub-ohm vaping can be very attractive.

The extra heat created also makes the vapor much warmer, similar to what smokers are used to inhaling.

Along with larger and warmer clouds, sub-ohm vaping also tends to unlock much more flavor with each puff. Sub-ohm coils use organic cotton wicks, and together with the super dense vapor, you can enjoy a purer and more intense taste of your liquid.

What Aspire has done with the K4 is create a sub-ohm device that allows smokers and novice vapers to enjoy the benefits of sub-ohm coils with a singlbutton operation.

The Aspire K4 Quick Starter Kit comes with a 2000mAh rechargeable battery paired with the new Aspire Cleito tank, plus a micro USB charging cable and a replacement atomizer head. All you need is a bottle of liquid and you're good to go!

The Aspire K4 is a pen-style battery and tank system that is reusable, rechargeable and refillable. You can choose from two colorways: black battery with black tank and pink battery with silver tank.

The Aspire K4 Battery

The K4 battery is the biggest in the Aspire K family. It measures 84mm long (a little over 3 inches) with a diameter of 22mm. To compare, regular cigarettes are 70mm long, King cigarettes are 84mm, 100s are 100mm, and 120s are 120mm.

The barrel of the K4 battery is made of 100% stainless steel covered with a special coating that gives it that sleek carbon fiber look.

Inside the device is a rechargeable lithium cell with 2000mAh capacity and a fixed output of 5.5 volts.

Like in most open system vaporizers, the fire button of the K4 is located near the top of the battery so it sits right where your index finger or thumb is when you're holding the device. Click the fire button five times to turn the battery on or off.

Around the power button is a LED ring that glows blue to indicate activation or when the battery is ready to fire.

On top of the battery is a non-adjustable 510-type connector that holds the tank in place. Four inlets are carved into the metal top to let air in.

The K4 battery is charged from the bottom. Use the charging cable included in the Aspire K4 Quick Starter Kit to connect the USB port underneath the K4 battery to a USB power source such as a laptop or desktop computer. If you have a compatible wall or car adapter, you can also charge the K4 battery through an electric outlet or the cigarette socket in your vehicle.

The Aspire Cleito Tank

The Cleito tank by Aspire features a revolutionary atomizer design that eliminates all choke points from coil to drip tip to allow massive unimpeded airflow every time you take a puff.

Aspire has replaced the standard static chimney inside the tank with a full-length coil head that runs through the center of the tank from top to base.

Inside the atomizer is a Clapton style Kanthal coil wrapped with organic cotton wick. The Cleito coil that is specially designed for the Aspire K4 Quick Starter Kit has a resistance of 0.27 ohm with range of 40W to 55W.

The Aspire K4 tank is made up of five parts: a Delrin drip tip, metal top cap, Cleito coil, Pyrex tube, and metal base hardware.

Conveniently refilled from the top, the Aspire Cleito has a widbore food-grade Delrin drip tip that is replaceable with any standard 510 drip tip.

The top cap and base are made of 304 stainless steel and sealed with grommets to prevent leaking. Simply unscrew the top cap to refill with juice and unscrew the base to replace the coil head.

The middle section has a Pyrex glass tube to hold your juice with the onpiece vertical coil head running through the center from top to base. The full-length coil design allows for the compact form factor to hold up to 3.5ml of liquid capacity despite its small size. Around the coil head are three vertical air flow slots.

Just below the heating element are four wide bore holes that allow air to pass through from the bottom air control valve.

Under the base hardware is a rotating dial that lets you adjust airflow. There are three slots measuring 9mm by 2mm which you can open or close depending on your draw preference.

The bottom of the tank has a gold-plated contact pin that connects the Cleito tank to your K4 battery.

K4 Battery Features:

  • Made of stainless steel with carbon fiber coating
  • Singlbutton operation
  • Prominent fire button with blue LED ring
  • 2000mAh battery capacity
  • Automatic cutoff
  • Short circuit protection
  • Low voltage protection
  • Overcharge protection
  • Micro USB charging
  • Standard 510 connection with airflow inlets
  • Height: 84mm
  • Diameter: 22mm

Cleito Tank Features:

  • Revolutionary full-length vertical coil design
  • No choke points from coil to drip tip
  • Intense flavors
  • Rapid vapor delivery
  • 304 stainless steel hardware
  • Food-grade Delrin drip tip
  • 25.5mm cross section airflow
  • Clapton coil build
  • Pre-installed 0.27 ohm coil (40W to 55W)
  • Organic cotton wicks
  • Pyrex glass tube
  • Top-fill tank system
  • 3.5ml tank capacity
  • 9mm by 2mm adjustable bottom airflow
  • Gold-plated contact pin
  • 510 threaded
  • 22mm diameter


  • Battery capacity: 2000mAh
  • Battery material: stainless steel with carbon fiber coating
  • Voltage: 5.5V
  • Tank capacity: 3.5ml
  • Tank material: Pyrex glass
  • Coil: Aspire Cleito coil
  • Wick: organic cotton
  • Atomizer resistance: 0.27 ohm
  • Charging: Micro USB
  • Connection: 510 with airflow inlets
  • Battery dimensions: 84mm x 22mm
  • Tank dimensions: 58mm x 22mm
  • Colorways: black battery with black atomizer and pink battery with silver atomizer

Tip for New Users: We highly recommend that you use eliquids with a higher VG ratio and contains less than 6mg of nicotine. Sub-ohm atomizers tend to produce a stronger throat hit than low and standard resistance atomizers. Juices with more than 6mg of nicotine could result in a burnt or harsh taste when heated by a sub-ohm coil.

Package Contents:

1 x Aspire 3.5ml Cleito Tank
1 x K4 Battery (2000mAh)
1 x Pre-Installed Cleito Coil - 0.27ohm
1 x Cleito Replacement Coil - 0.27ohm
1 x Cleito Cuff

1 x Micro USB Cable