As someone who's been using disposables for a while now, I’ve tried almost everything the market has to offer—from short-lived 1500-puff vapes to the larger 15000+ puff beasts. But recently, I got my hands on the Lost Mary Nexa N20000, and I have to say—this device genuinely changes the game.

The Problem: Disposable Vapes That Don’t Go the Distance
Let me be honest—I've been frustrated. Most disposables promise high puff counts, but they often fail to deliver in real-world use. Either the battery dies out too early, the flavor drops off halfway, or the device simply can’t keep up with my daily usage. I’ve also used the Lost Mary OS25000, which had an impressive puff count and flavor consistency, but I was curious if something new could offer a more refined experience without compromising on longevity.

I wanted a disposable vape that didn't just promise 20,000 puffs on paper but actually felt like it could last through weeks of consistent use—without sacrificing flavor or vapor quality.

The Agitation: Tired of Recharging, Weak Flavor, and Lack of Innovation
The problem with many high-puff disposables is simple—they give you the numbers, but not the experience. Some start out great but fizzle out fast. Others need recharging way too often. And then there are those that just feel cheap despite having a high puff count.

And while the Lost Mary OS25000 definitely set a strong benchmark in terms of puff delivery and dual mesh coil performance, I still found myself wondering—what’s the next step? Is there something even better suited for regular use that feels more consistent over time?

The Solution: Why I Switched to the Lost Mary Nexa N20000
Then came the Lost Mary Nexa N20000—and honestly, it got my attention right away. This device doesn’t just claim 20,000 puffs. It backs it up with a combination of smart design choices and tech upgrades that actually make a difference.

Dual Core Boost Mode
One of the first things that stood out to me is the Dual Core Boost Mode. I can toggle between Regular Mode (Low Power) and Boost Mode (High Power), depending on whether I want smoother hits or more intense flavor and vapor. Most disposables don’t give you this kind of control. With this feature, I feel like I’m getting two devices in one. When I want something mellow during the day, I go with Regular. At night or when I want a stronger throat hit, I switch to Boost.

Transparent Screen with Real-Time Monitoring
Another big win is the display screen. It shows battery life, e-liquid level, and mode status. I no longer have to guess when I’m running low or when it’s time to recharge. That’s a level of convenience I didn’t realize I needed until I had it.

Compare this to some of my earlier vapes (even the Lost Mary OS25000), which lacked this level of transparency. I’d either overcharge them or let the juice run out without knowing. This screen solves that.

Upgraded Dual Mesh Coil
If you care about flavor (and let’s be real—most of us do), this coil makes all the difference. The Lost Mary Nexa N20000 uses an upgraded dual mesh coil, which helps keep the flavor consistent from the first puff to the last. I’ve been using mine for over a week now, and the flavor hasn’t dropped off at all. That’s rare.

I’ve tested a few flavors already, and they all hold up well—whether it’s fruity blends or menthol-heavy options. The vapor is dense, the hit is smooth, and the aftertaste is clean.

5% Nicotine Strength
This device delivers 50mg (5%) nicotine strength, which is perfect for me. It’s strong enough to satisfy cravings without being overpowering. I get that smooth buzz without needing to chain vape. For anyone coming off traditional cigarettes or looking for that satisfying throat hit, this nicotine level is right on target.

USB-C Rechargeable
It charges via USB-C, and that’s another big plus for me. It’s faster, more reliable, and widely available. The battery life is long enough that I usually only need to top it off every couple of days, depending on how much I’m vaping. And because of the display, I never get caught off-guard.

A Real Comparison: Lost Mary Nexa N20000 vs Lost Mary OS25000
Now, since I’ve used both, let me break down what I noticed between the Lost Mary Nexa N20000 and the Lost Mary OS25000.

Puff Count: The OS25000 technically gives more puffs, but Nexa’s consistency makes it feel more efficient. I didn’t feel like I had to pull harder to get the same hit, even late in the cycle.

Design: Nexa is a bit more compact and has a more premium feel in the hand. The screen gives it a tech-savvy edge, whereas the OS25000 goes for simplicity.

Flavor Retention: Both are great, but Nexa’s upgraded mesh coil gives it a slight advantage over time. The last few hundred puffs on the Nexa still taste close to the first few, and that’s rare.

User Control: Nexa gives me the ability to switch modes, which is something I didn’t know I wanted until I used it.

If you’re after a higher puff count and are okay with a simpler layout, the Lost Mary OS25000 is still a top-tier option. But for everyday use with a more controlled and responsive experience, I’m sticking with the Nexa.

Who Should Try the Lost Mary Nexa N20000?
If you’re someone who:

Vapes consistently throughout the day

Wants better control over power and intensity

Prefers long-lasting flavor without flavor fade

Hates being surprised by low battery or dry hits

…then you’ll probably love the Lost Mary Nexa N20000. It’s one of the most well-rounded disposables I’ve ever used.

Final Thoughts
Vaping tech keeps evolving, and the Lost Mary Nexa N20000 is a perfect example of that progress. With its smart features, excellent puff count, and flavor consistency, it genuinely makes vaping more enjoyable. For now, this has become my go-to device.

If you’ve been using the Lost Mary OS25000, you’ll feel right at home with the Nexa—but you’ll also notice that extra step forward in convenience and performance.

I’ll keep testing new devices, but honestly, it’s going to take something special to pull me away from this one.