The Pulse X, Geek Bar's follow-up to the wildly popular original Pulse, pushed the "smart vape" concept further than almost anything else on the shelf when it launched: a curved LED screen, dual power modes, and a light show that turns heads. Here is how the Geek Bar Pulse X 25000 actually performs, what its airflow control really does, and which flavors are worth trying first.
The Starry Display: Geek Bar's Signature Look
The curved LED screen dominates the front of the device, and it does more than show numbers. Draw on the Pulse X and it lights up with a starry animation, glistening points of light in Regular mode that shift into constellation-style lines when you switch to Pulse mode. Underneath the light show, the screen also shows battery and e-liquid level as percentages, so the display is genuinely functional and not just decorative. It is a distinctive look that sets the Pulse X apart at a glance from most other high-puff disposables.
Quick specs: 18mL prefilled capacity · 820mAh battery, USB-C charging (80% in ~20 min) · Dual mesh coil, VPU technology · Regular Mode (25,000 puffs) / Pulse Mode (~15,000 puffs) · Mode-linked airflow · 3D curved starry LED display · 5% nicotine · Draw-activated · $16.79
Regular Mode vs Pulse Mode, and How Airflow Really Works
Regular Mode is the longer-lasting setting, tuned for a smoother, quieter draw and carrying the device's full 25,000-puff rating. Pulse Mode increases vapor output and flavor intensity for a stronger hit, but it pulls more e-liquid and battery per puff, bringing the realistic total down to around 15,000. The switch on the bottom of the device controls both settings at once.
Worth being precise about: the airflow adjustment is tied directly to that same switch rather than an independent slider. Regular mode leaves two airflow holes open for a medium mouth-to-lung draw, while Pulse mode opens a third hole for a looser pull. There is also a third "closed" position that shuts the airflow entirely, which functions as a travel lock to keep the device from firing accidentally in a bag. It is not the fully separate airflow control some spec sheets imply, but the two available draw styles cover the two most common preferences well.
Dual Mesh Coil and VPU Technology
The Pulse X runs on Geek Bar's dual mesh coil setup paired with VPU technology, which is engineered to heat more evenly, reduce burnt hits, and improve wicking compared to a single-coil design. In practice, that means flavor and vapor stay close to consistent from the first puff through the last of the 18mL tank, rather than the noticeable drop-off common on cheaper high-puff disposables.
Size and Portability: The One Real Trade-off
The Pulse X is a genuinely large device, closer in footprint to a small box mod than a typical disposable. That size is the cost of the bigger screen, tank, and battery, and it is worth knowing going in if pocket size matters to you. It is not a device built for carrying multiple flavors around at once, it is built to be the one device you commit to for the day.
Battery and Fast Charging
The 820mAh battery charges over USB-C and reaches roughly 80% in about 20 minutes, with a full charge taking around 35. That is fast enough to top off during a short break rather than planning your day around a long charge cycle, and the larger capacity compared to the original Pulse gives the device a real shot at running through the full 18mL tank without the battery dying first.
If you plan to spend meaningful time in Pulse Mode, remember it uses roughly 40% more e-liquid and battery per puff than Regular Mode. Switching back to Regular when you do not need the extra intensity is the easiest way to get closer to the full 25,000-puff rating.
Geek Bar Pulse X Flavors
The Pulse X launched with a wide spread of geek bar flavors pulse fans already knew from the original line, alongside new additions built specifically for this device. Blue Razz Ice and Watermelon Ice carried over from the original Pulse as proven favorites, while Sour Fcuking Fab and Sour Apple Ice cover the tart, candy-adjacent side of the lineup. Grapefruit Refresher stands out as a genuinely distinct pick, a bold citrus flavor that is rare across the wider disposable category. Sour Mango Pineapple and Lime Berry Orange round out the tropical and fruit-forward options, and Miami Mint covers straightforward menthol for anyone who wants a break from fruit and candy entirely.
- Blue Razz Ice, Watermelon Ice, Sour Apple Ice (iced fruit)
- Sour Fcuking Fab, Blackberry B-Pop, Strawberry B-Pop, Lemon Heads (candy and sour)
- Grapefruit Refresher, Sour Mango Pineapple, Lime Berry Orange, Raspberry Peach Lime (fruit-forward)
- Banana Taffy Freeze, Blue Rancher, Miami Mint (classic and mint)
For how these stack up against every other device in the brand's lineup, our geek bar best flavors ranking covers the standout picks across the full catalog.
Pulse X vs Geek Bar Pulse 15000
The Geek Bar Pulse 15000 is the smaller, original device the Pulse X builds on. The Pulse X wins clearly on raw specs, a higher puff count, bigger tank, larger battery, and the mode-linked airflow the standard Pulse does not have. What the Pulse 15000 wins on is size, it is meaningfully easier to pocket and carry multiple flavors of. If the Pulse X's bulk is a dealbreaker, the Pulse 15000 delivers much of the same coil and flavor quality in a smaller footprint.
Geek Bar has since released the Geek Bar Pulse X 2, the direct successor to this device. It roughly doubles the puff count in both modes, up to 50,000 in Regular and 25,000 in Pulse, from the same 18mL tank, along with a faster-charging battery. If you are shopping new rather than comparing against a Pulse X you already own, the Pulse X 2 is worth a look before you buy.
Who Should Buy the Geek Bar Pulse X
- Vapers who want the highest single-device puff count in Geek Bar's standard lineup
- Anyone who wants a real battery and e-liquid readout instead of guessing
- Vapers who want a genuine choice between a tighter MTL draw and a looser, stronger pull
- Flavor explorers willing to work through a wide lineup to find a new favorite
Final Verdict
The Geek Bar Pulse X 25000 earns its reputation as one of the more fully featured disposables available. The starry display is a genuine identity for the device rather than a gimmick, the dual mesh coil and VPU tech keep flavor consistent deep into the tank, and the mode-linked airflow covers the two draw styles most vapers actually want. The trade-off is size, this is a large device built for one dedicated user rather than a pocket companion, but for anyone who wants the most capable Geek Bar disposable outside the modular Mate line, the Pulse X is the pick.
Frequently Asked Questions
How many puffs does the Geek Bar Pulse X actually get?
It is rated for up to 25,000 puffs in Regular mode. Switching to Pulse mode increases vapor output and flavor intensity but pulls more e-liquid and battery per puff, which lowers the realistic total to around 15,000.
Does the Geek Bar Pulse X have real adjustable airflow?
The airflow is tied to the same switch that controls the power mode rather than a fully independent slider. Regular mode opens two airflow holes for a medium mouth-to-lung draw, and Pulse mode opens a third for a looser pull. A third switch position locks the device shut, which doubles as a travel lock.
What are the best Geek Bar flavors on the Pulse X?
Fan favorites on the Pulse X include Blue Razz Ice, Sour Fcuking Fab, Watermelon Ice, and Miami Mint, alongside newer additions like Grapefruit Refresher and Sour Mango Pineapple. For a full ranking across the entire Geek Bar catalog, see our best Geek Bar flavors guide.
Is the Geek Bar Pulse X better than the Geek Bar Pulse 15000?
The Pulse X has a higher puff count, a bigger battery, and a larger tank than the original Pulse 15000, plus the added airflow-linked mode switch. The Pulse 15000 is smaller and easier to carry, which matters if the Pulse X's larger size is a dealbreaker.
WARNING: This product contains nicotine. Nicotine is an addictive chemical. Intended for adults 21+ only.
