Product Summary
The Innokin Endura Apex is a compact refillable pen kit with a built-in 1800mAh battery, a 14.5W to 16.5W output and a 2ml top-filling tank. It charges over USB-C and switches between two power levels with a single button and a base wheel. Two Prism-S coils are included, a 0.9 Ohm for MTL and a 0.8 Ohm for RDTL, and both suit 50/50, high-PG and nic salt e-liquids. Adjustable airflow tunes the draw from tight to loose. Ideal as an easy all-day pen for anyone leaving disposables behind, in six colours.
The Innokin Endura Apex is a refillable pen-style vape kit built for easy all-day use. It pairs a built-in 1800mAh battery with a 2ml top-filling tank. So you simply add your own e-liquid, screw in a coil and press the button to vape. As a result, it suits new and experienced vapers alike.
The kit also includes two Innokin Prism-S coils for both draw styles. One coil is 0.9 Ohm, and the other is 0.8 Ohm. So you can switch between a tight MTL inhale and a looser RDTL one. Meanwhile, a single button and a base wheel keep things simple. The output also runs from 14.5W to 16.5W across two power levels.
At a Glance
- 1800mAh built-in battery for all-day vaping
- 14.5W to 16.5W output across two power levels
- MTL and RDTL draw styles
- Single fire button, switched on with three clicks
- Adjustable airflow for a tighter or looser draw
- 2ml top-filling refillable tank
- Two Prism-S coils included, 0.9 Ohm and 0.8 Ohm
- USB-C charging cable in the box
Who is the Endura Apex for?
Choose it if:
- You want a simple refillable beginner kit with a long-lasting battery
- You are moving on from disposables and want a tidy mouth to lung draw
- You like a slim vape pen that slips into a pocket
Look elsewhere if:
- You want big clouds and sub-ohm power, because this kit focuses on MTL and RDTL
- You prefer a large screen and full wattage menus, which this simple kit leaves out
A Slim Pen You Can Pocket
The Endura Apex keeps a slim, cylindrical pen shape with a smooth satin finish. So it sits comfortably in the hand and slips easily into a pocket or bag. It also stands 13.9cm tall, which keeps it neat for daily carry. On top of that, it shares the classic styling of the Endura T18 X.
The range comes in six colours, so you can match it to your style:
- Black and Grey for a classic, understated look
- Blue and Green for a cooler, bolder finish
- Pink and Purple for a softer, brighter accent
An All-Day 1800mAh Battery
The built-in 1800mAh battery is generous for such a slim device. As a result, it comfortably lasts most vapers through a full day. When it runs low, you then recharge it with the included USB-C cable.
Operation stays simple throughout. First, press the button three times to switch the kit on. Then hold the same button to vape. Meanwhile, a wheel at the base moves between two power levels, so you can pick a cooler or a stronger vape.
Prism-S Coils for MTL and RDTL
The Endura Apex uses Innokin Prism-S coils, and two come included. Because the pre-installed 0.9 Ohm coil suits mouth to lung vaping, it gives a tight and flavour-led draw. The spare 0.8 Ohm coil then opens things up for a restricted direct to lung draw with a little more vapour.
You can also fit a 1.5 Ohm Prism-S coil for a tighter draw with less vapour. We recommend pairing the kit with 50/50 and high-PG e-liquids, including nic salts. Each coil runs best at its own setting, shown in the table below. For fresh flavour later, replacement Prism-S coils are on hand.
| Endura Apex Coil Resistance & Draw | |
|---|---|
| 0.9 Ω Prism-S (Included) | MTL, Pre-Installed, Top Filling |
| 0.8 Ω Prism-S (Included) | RDTL, Top Filling |
| 1.5 Ω Prism-S (Sold Separately) | MTL, Less Vapour |
Adjustable Airflow and Top Filling
The Endura Apex tank gives you real control over the draw. First, the adjustable airflow lets you tighten or open the inhale. So you can set a snug MTL draw or a looser RDTL one instead.
Refilling is quick too. Because the tank uses a top-fill design, you top it up without taking it off the kit. The 2ml capacity then keeps you going nicely between fills.
What's in the Box
- 1 x Innokin Endura Apex device
- 1 x Innokin Endura Apex tank
- 1 x 0.9 Ohm Prism-S coil (pre-installed)
- 1 x 0.8 Ohm Prism-S coil
- 1 x USB-C charging cable
- 1 x User manual














