Innokin has always been a brand that focuses on innovation and making quality vapes for beginners.

Their latest product is the Innokin Endura S1, a Refillable, Rechargeable Disposable (RRD). This means you can refill it with your own e-liquid and recharge the battery, but once the coil dies, the whole device needs to be disposed of.   

This device is a unique blend of a disposable vape and a reusable one, aiming to provide the convenience of a disposable vape while reducing waste. 

The S1 comes with a 0.8Ω integrated mesh coil and a 650mAh battery. Innokin claims that you can get up to 7000 puffs (20ml) from this device, which is on par with high-capacity disposables. So, is the Endura S1 a step in the right direction toward more sustainable vaping? Let’s find out.

The Bottom Line

The Innokin Endura S1 is a more affordable and sustainable option than regular disposable vapes. It delivers an impressive vape with excellent flavor. The MTL draw is not adjustable but is ideal for beginner vapers and those transitioning from smoking. It’s not as feature-rich or sustainable as some of the best pod systems, but it’s definitely a step up from pre-filled disposables – recommended.

Design & Build Quality

The Innokin Endura S1 is a sleek and compact device that takes on the form of a vape pen but with a twist. It’s an all-in-one device, meaning the tank and battery are not separate sections but are integrated into one seamless design. The device measures 18.5mm in diameter and 101mm in height, making it a perfect fit for your pocket or purse.

The Endura S1 comes in a variety of eight colors, including Charcoal, Graphite, Silver, Pearl, Celadon, Cerulean, Iris, and Blush. Depending on the color variant you choose, you’ll get either a solid Matte, Metallic, or Gradient finish. We have the Pearl and Blush versions for review, and while they are a little feminine for my liking, I appreciate their simple aesthetic.

The device features a clear tank area with a small but comfortable “Duck Bill” mouthpiece, which is extremely comfortable for MTL vaping. The tank’s full transparency makes it easy to monitor your e-liquid level. The Graphite, Charcoal, and Silver variants have a tinted tank, but viewing your juice level still shouldn’t be an issue.

On the side of the tank, there’s a white silicone fill port cover that you can lift to access the fill port. The oval fill port measures around 4mm x 5mm, providing ample space for most bottle tips.

The main body of the device houses the “Endura S1” logo printed in silver on the front and the “Innokin” logo on the rear. The device’s base is like a white plastic cap, housing the USB Type C port, the LED indicator light, the airflow inlet, and various legal logos.

Despite its affordable price, the Endura S1 does not compromise on build quality. The device feels solid and well-made, living up to Innokin’s reputation for quality. 

However, the LED indicator light is positioned on the base (like many disposable vapes), which can be a bit inconvenient as it’s hard to see when vaping. But overall, the design and build quality of the Endura S1 are impressive, making it a device that most would find appealing, especially for the price.

Features & Functions

The Innokin Endura S1 is a straightforward device designed for simplicity and ease of use. It doesn’t come with a plethora of features or modes, but it does what it’s designed to do, and it does it well.

The Endura S1 is a Refillable, Rechargeable Disposable (RRD) device. This means you can refill it with your own e-liquid and recharge the battery, but once the coil dies, the whole device must be disposed of.

The device has a 2ml capacity tank for refilling, which means it’s ideal for TPD-regulated areas. 

The Endura S1 is draw-activated, meaning there are no buttons to press. You simply inhale to vape. 

There is also no adjustable airflow. However, the draw is tight, mimicking that of a traditional cigarette, which makes it an excellent option for smokers looking to transition to vaping and MTL vapers.

The Endura S1 has a built-in 650mAh battery, which is quite impressive for a device of this size. The battery can be recharged via the USB Type-C port located at the base of the device. It has a 0.5A charge rate, which means it takes approximately 90 minutes to recharge fully.

The S1 features a constant regulated output of 3.6V / 13.5W which should mean no drops in performance when the battery charge is low.

The LED indicator light next to the charging port shows the battery level. It lights up with the following to show your battery status:

• Green = >20%
• Red = <20%

I wish it had one more stage in the lighting to show when it’s at a medium level.

The device comes with a 0.8Ω mesh coil, which is perfect for MTL vaping and works best with high PG or 50/50 e-liquids. The coil is not replaceable, so you’ll need to dispose of the entire device once it’s burnt out.

Overall, the features and functions of the Endura S1 are simple and straightforward, making it an excellent device for beginners or those looking for a hassle-free vaping experience.

How to Use the Innokin Endura S1

Using the Innokin Endura S1 is a breeze, thanks to its simple and straightforward design. Here’s a step-by-step guide on how to use this device:

1. Filling the Tank: To fill the tank, locate the white silicone fill port cover on the side of the tank. Lift the cover to reveal the fill port. Insert the tip of your e-liquid bottle into the fill port and gently squeeze the bottle to fill the tank. Be careful not to overfill. Once filled, close the fill port cover securely.
2. Charging the Device: Connect the device to a power source using the USB Type-C cable. The LED indicator light will show the charging status. It lights up red when charging and turns off when the device is fully charged.
3. Vaping: The Endura S1 is draw-activated, so there are no buttons to press. Simply take a puff to vape. The LED indicator light will light up when you take a puff.
4. Checking Battery Level: You can check the battery level by looking at the LED indicator light. It lights up green when the battery level is above 20% and red when below 20%.
5. Disposing of the Device: The entire device must be disposed of once the coil is burnt out. Please dispose of the device responsibly, following local regulations for electronic waste.

Performance

When it comes to performance, the Innokin Endura S1 truly delivers. From the moment I took my first puff, I was impressed by the quality of the vape it produced. 

The draw is tight, mimicking the draw of a traditional cigarette, which pleases me as a tight MTL vaper. However, those used to more open disposables may find it a little too restrictive.

The 0.8Ω mesh coil worked flawlessly with the 50/50 PG/VG juice I tested it with, producing a satisfying amount of vapor and excellent flavor. The flavor was clean and crisp, with no hint of dry or burnt hits. I’m sure it could cope with a slightly higher VG juice, but I think 50/50 is the best option for optimal MTL performance.

I was able to get around 7000 puffs (20ml) from the device before the coil started to lose its flavor, which is significantly more than most disposables on the market (especially in TPD-regulated areas).

The battery life was good. The 650mAh battery lasted me a full day of moderate vaping, and the USB Type-C charging meant I could quickly top the device up when needed. However, the charge times are a little slow. If you are completely depleted it will take around 90 minutes.

Unlike other rechargeable disposables, the S1 gives you a slight gauge of your battery status with the LED indicator light. Although I wish it had a more granular 3-step gauge, and its position on the base is not the best to see when vaping.

A minor gripe I have with the Endura S1 is the fill port. While the fill port was large enough to accommodate most bottle tips, filling without spilling was a bit tricky, especially when using larger bottles. Slow and steady is the key; make sure there’s a small gap for air to release.

However, these are minor issues and don’t detract from the device’s overall performance.

Overall, the performance of the Innokin Endura S1 was impressive. It’s as good as any MTL disposable I’ve tried, and you have full freedom to use your own juice. It delivers a satisfying and hassle-free vaping experience, making it an excellent option for beginners and seasoned vapers.

Verdict

The Innokin Endura S1 is an excellent disposable vape alternative. 

It delivers performance on par with most of the best disposable on the market while allowing you to use your own vape juice.

The 0.8Ω mesh coil delivers excellent flavor and vapor. Sadly there’s no adjustable airflow, but it does provide a perfect MTL draw that will satisfy new vapers and those transitioning from smoking.

It might not suit those already used to a loose draw from other disposables or prefer a very open MTL vape.

The Endura S1 is simple and straightforward to use and gives you more freedom and flexibility than traditional disposable vapes. 

However, the fact that the coil is not replaceable and the entire device needs to be disposed of, means it’s still a step down from some of the best pod vapes on the market. 

Despite this, the Endura S1 is a step in the right direction towards more sustainable vaping. It’s a device that delivers on its promises and offers a satisfying and enjoyable vaping experience. Whether you’re a beginner or a seasoned vaper, the Endura S1 is worth considering.