Geek Bar Pulse X2 50K Vape Review: Sub-Ohm Power in a Disposable Body

From the Apus X 50K to the Geek Bar Pulse X2, everyone’s claiming 50,000 puffs now. For a complete ranking of the best 50K puff devices, see our 50K Puff Disposable Vapes Ranked guide. to the Geek Bar Pulse X2, everyone’s claiming 50,000 puffs now. The number has become meaningless – marketing wallpaper that nobody actually believes. So when Geek Bar says the Pulse X2 hits 50K from the same 18mL tank that previously delivered 25K, your instinct is to roll your eyes.

Then I used the Pulse X2 for three weeks straight, and the math started making sense. Not because the puff counter says 50,000 – those things have never been honest – rather because the VPU chip squeezes more out of every drop of e-liquid. For context on why the industry is shifting toward higher puff counts and rechargeable formats, see our Big Puff Vapes guide. This isn’t just a bigger number slapped on the same device. It’s the same tank, a bigger battery, a sub-ohm coil, and a smarter brain. Whether that adds up to a better vape or just a more expensive one – let’s get into it.

Specs at a Glance

Right, the Pulse X2 looks familiar if you’ve held a Pulse X, and that’s by design. Same body language, same 3D curved screen, same general proportions. Differences? Almost all inside. For an in-depth look at how smart vape technology is evolving — including screens, chips, and connected features — see our Smart Vapes guide.

Here’s what’s under the hood:

Spec	Pulse X2 50K	Pulse X 25K
Puff Count (Regular)	Up to 50,000	Up to 25,000
Puff Count (Pulse)	Up to 25,000	Up to 15,000
E-liquid Capacity	18mL	18mL
Battery	1000mAh (4.35V high-voltage cell)	820mAh
Coil	0.6Ω dual mesh (23.7% more volume)	Standard dual mesh
Dimensions	58.5 × 29.7 × 94.7 mm	–
Weight	–	–
Charging	USB-C fast (80% in ~20 min) + pass-through	USB-C standard
Display	3D curved + Galaxy Cascade UI	3D curved + Starry UI
Nicotine	5% (50mg)	5% (50mg)
Activation	Draw-activated	Draw-activated
Airflow	Adjustable	Adjustable
Price	US$22-25	US$19-20

Same 18mL. Same nicotine. Double the puffs. Clever engineering or creative accounting? Truth lies somewhere in between.

First Impressions

Pick it up and right away you notice the screen. That 3D Curved Screen with Galaxy Cascade UI shows battery level, puff count, and current mode all at once. Not a blinking LED. Not a single number you have to decipher. Three pieces of information you actually want, readable at a glance. Proper useful, that.

Now, I’ll be honest – this device is a bit ostentatious. Those Binary Halo Light strips framing the screen pulse and glow with every draw, and the Galaxy Cascade UI displays animated space scenes like a tiny planetarium in your hand. Fun for the first day. By day three, I stopped noticing it. By week two, I was glad the screen shows useful data because the light show had worn thin.

Its shape is a rounded rectangle – wider than tall, solid in the hand without being heavy. Think of it as a slightly larger Pulse X with better screen tech. That rubberized mouthpiece Geek Bar has used since the original Pulse? Still here, still one of the more comfortable drip tips on any disposable.

Adjustable airflow switch sits on the side. Mode toggle is on the bottom. Draw-activated – no firing button, which I prefer. Fewer moving parts, fewer things to break.

Features & What Actually Matters

The VPU Chip – The Real Story

Here’s where it gets interesting. Inside the Pulse X2 sits what Geek Bar calls the Hyperdrive Core VPU – a processing unit that manages power delivery to the dual mesh coils. Geek Bar claims a 38% improvement in e-liquid retention efficiency (one retailer lists 28% using a different measurement, so take the exact number with a healthy dose of skepticism). What matters is this: each puff converts more juice to vapor and wastes less on coil heat or condensation.

Does it actually work? I’ll admit I was skeptical at first. In practice, yes – with a caveat. Pulse X2 delivers noticeably more consistent vapor from the first puff to the last. With the original Pulse X, I could feel the performance dip around the two-thirds mark. With the X2, that dip comes later and is less pronounced. VPU chip isn’t magic – it can’t create e-liquid from nothing – and yet it does a better job of managing what’s there.

The 0.6Ω Sub-Ohm Coil

This spec caught my attention. Dropping below 1.0Ω pushes the X2 into sub-ohm territory, which has traditionally been reserved for box mods and rebuildable atomizers. In a disposable? Bold move. Geek Bar claims this dual mesh setup delivers 23.7% more coil volume than single-coil designs — and it shows in the vapor density.

Result: warmer vapor. Denser clouds. A stronger throat hit that lands immediately in Pulse Mode. Coming from a 0.8Ω or 1.0Ω disposable? The difference is night and day. The 0.6Ω coil runs hotter and vaporizes e-liquid faster, which is part of why Pulse Mode hits so much harder.

There’s a trade-off, though. A sub-ohm coil in a disposable means going through juice faster when you push it. In Regular Mode, the efficiency gains compensate. In Pulse Mode, you’re trading longevity for intensity. That’s the deal.

Two Modes, One Device

Regular Mode runs a single coil at lower wattage. Pulse Mode fires both coils at higher wattage. A switch on the bottom toggles between them, and the screen updates to show which mode is active.

Regular Mode is where most vapers spend their time for longevity. Pulse Mode is for bigger clouds and bolder flavor – and don’t mind halving your puff count.

Charging

80% in roughly 20 minutes via USB-C. That’s 50% faster than the original Pulse X, and it matters more than you’d think. When you’re carrying a device that lasts weeks, plugging it in during lunch is enough to keep it running. No cable is included in all regions – check your packaging.

That 1000mAh battery uses a 4.35V high-voltage cell — slightly above the usual 3.7V, which helps sustain the sub-ohm coil’s power demands without draining faster. And if you need to vape while it’s plugged in, pass-through charging is supported. Handy for heavy users who forget to charge overnight. Not a feature you’d expect in a disposable, but here we are.

⚠️ FDA Compliance Note: This product contains nicotine. Nicotine is an addictive chemical. Not intended for use by persons under the age of 21. CDC: Health Effects of E-Cigarettes

Test Results: 3 Weeks In

I’ve been running the Pulse X2 in Blue Razz Bull for 21 days. Here’s what the timeline looks like:

Week 1: Full power, Regular Mode. Flavor is sharp and dense – the energy drink base adds a fizzy sweetness that’s different from standard blue raspberry. Vapor production is consistent. Battery lasts about 3 days between charges. Screen is bright and easy to read.
Week 2: Switched to Pulse Mode for two days, then back to Regular. Pulse Mode hits harder – noticeably warmer, bigger clouds, more intense flavor. The juice level drops visibly faster, though. By mid-week, I’m back in Regular Mode full-time. The draw is still tight enough for MTL, which I prefer. Charging twice a week now.
Week 3: Performance hasn’t dropped off the way it did with the Pulse X at this stage. VPU chip seems to maintain output even as the tank empties. Flavor is slightly muted compared to week one, yet still distinctly Blue Razz Bull – not the washed-out nothing you get from cheaper disposables past their prime. The screen still shows roughly 35% juice remaining after three weeks of daily use in Regular Mode.

Make no mistake — I won’t hit 50,000 puffs. Nobody will, unless your puffs are impossibly short. Still, three weeks of consistent, enjoyable vapor from a single disposable? That’s the kind of real-world performance that actually matters.

Flavor Lineup: Two Editions, 15 Options

Geek Bar split the Pulse X2 launch into two editions, each with its own flavor identity. The hardware is identical – your only decision is which flavor profile fits your style.

Bull Edition (5 Flavors)

These pair classic fruit profiles with an energy drink base. Think of your favorite fruit vape with an electric kick underneath.

• Blue Razz Bull – The standout. Blue raspberry with a fizzy, tangy energy drink layer. Bold and addictive.
• Watermelon Bull – Clean watermelon meets the Bull backbone. Not artificial. The energy drink finish keeps it from going flat.
• Strawberry Bull – Riper than candy, sweeter than tart. The Bull base adds brightness.
• Peach Bull – Smooth and slightly floral. Great for vapers who prefer a softer profile.
• Coco Berry Bull – The wildcard. Coconut cream + mixed berry + energy drink. Unusual, and it works.

Standard Edition (10 Flavors)

Classic Geek Bar territory – fruit, candy, and ice profiles that made the original Pulse X one of the best-selling disposables in the US.

• Blue Razz Ice, Watermelon Ice, Wild Cherry Slush – The ice trio. Cold, sweet, familiar.
• Sour Fcuking Fab – Complex sour fruit. For flavor chasers.
• Sour Straws, Banana Taffy Freeze, Miami Mint, White Peach Raspberry, Pink & Blue, Blueberry Jam

My pick? Blue Razz Bull in Pulse Mode. That 0.6Ω coil opens up the layered energy drink notes in a way Regular Mode can’t match.

The Competition

vs Geek Bar Pulse X 25K (Predecessor)

Same series, direct predecessor. The Pulse X ranked as one of the best-selling disposables in the US market throughout 2025 according to Vaping360 and VapeBeat (reviewed here). Same 18mL tank, same body style, same brand. X2 gives you double the puff count, a 22% bigger battery, sub-ohm coil, and faster charging for roughly $3-5 more. Already own a Pulse X and like it? The X2 is the better device in every measurable way — won me over completely after three weeks. Pulse X still makes sense at US$19.99 for budget-conscious buyers.

The X2 also stands out as one of the first sub-ohm disposables from a major brand — a category that barely existed a year ago. Fair enough — stick with what you know. Want warmer, denser vapor? This 0.6Ω coil is the real deal.

vs Geek Bar CLR 50K

Geek Bar takes a completely different approach with the CLR 50K – transparent tank, visual e-liquid monitoring, Waterfall Glow lighting. Same 50K/25K puff split, same price range. The CLR has a 900mAh battery (vs 1000mAh on X2) and uses a 17mL tank instead of 18mL.

Two different philosophies. X2 is about raw power – sub-ohm coil, warmer vapor, bigger clouds. CLR is about visibility – you can see your juice through the tank, which is useful. Prefer intensity? X2. Prefer knowing exactly how much juice is left? CLR. To be fair, the CLR’s transparent tank is one of those features that sounds like a gimmick until you actually use it.

vs RAZ RX 50K

RAZ RX 50K is the wild card. Similar puff count, similar price, different flavor philosophy — the RAZ RX is widely recognized as one of the top 50K disposables for flavor variety. Pulse X2’s Bull Edition is bolder than usual for Geek Bar, though it’s still more restrained than what RAZ serves up. Choosing between these two comes down to flavor preference.

If you prefer RAZ’s approach but want to save on refills, the RAZ VUE 50K offers a pod-swap system that lowers the per-refill cost — a different philosophy from the X2’s all-in-one design.

vs VIHO TRX 50K

VIHO TRX 50K brings 26 flavors to the table — nearly double the X2’s selection — with a 1500mAh battery and quad mesh coil. It’s the better choice if flavor variety is your priority. The X2 answers with a warmer, denser vape from that 0.6Ω coil and faster charging. VIHO wins on breadth. X2 wins on intensity.

The Math: Is It Worth It?

At US$22-25, Pulse X2 sits in the upper tier of disposable pricing. Let’s break down the numbers:

Metric	Calculation	Result
Cost per 100 puffs (Regular)	$24 ÷ 500 ≈ $0.048	~5 cents
Cost per week (3+ weeks life)	$24 ÷ 3.5 weeks	~US$6.86/week
Cost per mL	$24 ÷ 18mL	~US$1.33/mL
vs Pulse X value	$24/50K vs $20/25K	92% more puffs for 20% more money
vs cigarettes	$24 vs ~$8-12/pack	Cheaper within 2-3 days

At roughly 5 cents per 100 puffs, the X2 costs a fraction of what you’d spend on cigarettes for the same nicotine delivery. And you’re getting roughly double the longevity for only 20% more money versus the original Pulse X. That’s a genuine value improvement, not just marketing spin.

Who This Is For

Pulse X2 is built for vapers who are tired of managing their devices. Dual display means you’re not guessing how much is left. Fast charge means a low battery isn’t a crisis. VPU chip means you’re not chasing the performance you had in week one by week three. It removes friction.

It’s for you if:

• You want a disposable that actually lasts weeks, not days
• You like bigger, warmer clouds and don’t mind the sub-ohm trade-off
• Screen information matters to you (battery, juice level, mode)
• The energy drink flavor concept appeals to you

It’s not for you if:

• You prefer compact, pocket-friendly devices – this isn’t small
• You’re sensitive to warm vapor or strong throat hit
• On a strict budget? The Pulse X at $20 does everything you need.
• Light shows and animated screens feel gimmicky? Skip it.

That last point is worth expanding. Galaxy Cascade UI and Binary Halo Light are impressive on day one. By week three, I barely notice them. Screen utility (showing battery and juice level) outlasts the novelty of the animations. Whether that’s worth paying for depends on how much you value the functional display versus the aesthetic theater.

Pros & Cons

Pros:

• VPU chip delivers consistent performance over weeks
• 1000mAh battery with 20-minute fast charging is a real quality-of-life upgrade
• 0.6Ω sub-ohm coil produces warmer, denser vapor than any previous Pulse
• Galaxy Cascade UI shows useful info (battery, juice, mode) at a glance
• 15 flavors across two editions gives real choice
• Strong value proposition – double the puffs for 20% more money

Cons:

• 50,000 puff claim is optimistic – real-world is closer to 3-4 weeks of daily use
• Weight still a mystery — Geek Bar hasn’t published it, which is odd
• Sub-ohm coil in Pulse Mode burns through juice noticeably faster
• Light show novelty fades fast
• No USB-C cable included in all regions
• Size isn’t pocket-friendly compared to smaller disposables

Frequently Asked Questions

How many puffs does the Geek Bar Pulse X2 actually last?

In my testing, roughly 3-4 weeks of regular daily use in Regular Mode. The 50,000 puff count is achievable only with very short draws. Real-world usage with typical 2-3 second puffs will land somewhere between 25,000-35,000. In Pulse Mode, expect about half that.

Is the Geek Bar Pulse X2 better than the Pulse X?

Yes, in every measurable category. Same 18mL tank, double the puff count, 22% larger battery, sub-ohm coil, faster charging, upgraded screen. It costs $3-5 more. If that’s within your budget, the X2 is the better device.

What’s the difference between Bull Edition and Standard Edition?

Same hardware. Different flavors. Bull Edition pairs fruit with an energy drink base (fizzy, tangy, bold). Standard Edition is classic Geek Bar – fruit, candy, and ice profiles. The Bull flavors work especially well in Pulse Mode where the 0.6Ω coil brings out the layered profiles.

Does the Pulse X2 have adjustable airflow?

Yes. The airflow switch on the side lets you adjust between a tighter MTL draw and a more open airflow. In Regular Mode, the tighter draw feels natural. In Pulse Mode, opening up the airflow lets the warmer vapor flow more freely.

Can I see how much e-liquid is left?

Galaxy Cascade UI displays an e-liquid level indicator on the 3D curved screen. Not as precise as the transparent tank on the Geek Bar CLR 50K, though it gives you a reasonable estimate. I found it accurate enough to plan my charging schedule around.

Is 0.6Ω sub-ohm safe in a disposable?

VPU chip manages power delivery and includes overheat protection. That 0.6Ω coil is safe within the device’s designed parameters. It runs warmer than standard disposable coils, which produces denser vapor and stronger flavor – though it also means you’ll go through e-liquid faster in Pulse Mode.

Final Verdict

Geek Bar Pulse X2 doesn’t reinvent the disposable vape — it takes what worked about the Pulse X and makes every component better: battery, chip, coil, screen, charging. The 50,000 puff number will get the headlines, and it’s optimistic. The real story is the VPU chip and the 0.6Ω sub-ohm coil working together to deliver a more consistent, more satisfying vape over a long lifespan.

At US$22-25, it’s one of the more honest value propositions in the category. Three weeks of reliable, enjoyable vapor from a single device isn’t something most disposables can claim. Bull Edition flavors are a risk — energy drink profiles aren’t for everyone — and the Standard Edition covers the classics.

Bottom line: first Pulse device? Start here. Pulse X regular? The upgrade case is clear. Happy with smaller, cheaper disposables? The X2 won’t change your mind – and that’s fine.

Pulse X2 earns its keep not through gimmicks, rather through execution. VPU chip does the heavy lifting. Sub-ohm coil delivers the experience. Fast charging removes the anxiety. A disposable that respects your time — and at this price? That’s rare enough to notice.