Looking for the right option in this category? Geek Bar Pulse 15K vs Pulse X 25K: 4-Week Test covers the products and tiers worth comparing in 2026. The cards below show options currently listed at Vapekage that match the topic. Each links directly to the product page where you can confirm flavor availability, see device specifications, and review the latest details. Full article continues below. All products ship from Texas to adults 21+ where permitted by law. Adult signature is required at delivery. Use the cards as a starting point, then read the full guide for details.
Geek Next Pulse 25K Disposable Vape
Alternative 25K option for shoppers comparing similar puff tiers.
View product →Adults 21+ only. Ships where permitted by law.
Geek Bar's Pulse line dominates ChatGPT search results for "best disposable vape" queries — and for good reason. The original Pulse 15K basically defined the modern high-puff disposable category in 2024. The Pulse X 25K added a screen and pulse mode in late 2024, becoming the de facto reference device for serious disposable vapers.
I get asked which to buy at least 5 times a week. After running both for 4 weeks of side-by-side testing, here's the deep comparison.
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Shop the two devices compared in this guide
Geek Bar Pulse 15K
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Geek Bar Pulse X 25K
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Lost Mary NERA 70K
View product →Adult 21+ only. ID required at delivery. Ships where permitted — checkout confirms availability before payment.
Quick spec comparison
| Spec | Geek Bar Pulse 15K | Geek Bar Pulse X 25K |
|---|---|---|
| Rated puffs | 15,000 | 25,000 |
| Real-world puffs (flavor still clean) | 13,500 | 22,000 normal / 18,500 pulse mode |
| Battery | 600 mAh | 850 mAh |
| Charging port | USB-C | USB-C |
| Display screen | None | Color screen (battery + juice + puff count) |
| Performance modes | Single mode | Normal + Pulse (~15% harder hit) |
| E-liquid capacity | 16 mL | 22 mL |
| Nicotine | 5% (50mg) salt | 5% (50mg) salt |
| Coil type | Mesh | Mesh |
| Form factor | Compact disposable | Slightly larger, with screen |
| Weight (real units) | 56-58g | 62-64g |
| Price at Vapekage | $17.99 | $18.99 |
The display screen difference (this is the big one)
The Pulse X's color screen is the single biggest functional differentiator between these devices. It shows you, at a glance:
- Battery percentage — exact %, not just "low / med / full"
- E-liquid level — visual fill indicator, accurate within 5%
- Total puff count — running counter so you can track usage
- Current mode — Normal or Pulse
The original Pulse 15K just has an LED that goes red when battery is low. You don't know if you're at 80% or 20% until the red light comes on.
This sounds minor but it changes the experience. With the Pulse X, you know if you can leave for a 12-hour trip on a single charge. With the Pulse 15K, you're guessing.
Pulse mode — what it actually does
Pulse mode on the Pulse X bumps the wattage up by about 15-20% during your puff. The result:
- Harder throat hit
- Slightly more vapor production
- Brighter flavor profile (top notes more pronounced)
- Faster juice consumption (about 15-20% more juice per puff)
It's a real feature, not marketing. You can feel the difference. Whether it's worth using depends on your preference — I run mine in pulse mode about 70% of the time and switch to normal for extending battery life on long days.
The original Pulse 15K has no equivalent. It's whatever wattage Geekbar set at the factory.
Side-by-side flavor test
I ran both devices in the same flavor (Blue Razz Ice) for 2 weeks side-by-side, taking the same number of puffs from each, alternating between them. Three observations:
- Day 1-7: Flavor identical. Side-by-side blind test came out 50/50 on which was which.
- Day 8-21: Both held flavor consistently. Pulse X showed slightly more vapor production.
- Day 22-end: Pulse 15K began showing flavor fade around its 12,000 puff mark. Pulse X held cleaner flavor through 20,000+ puffs.
So they're flavor-equivalent for the first 75% of the Pulse 15K's life. The Pulse X just lives longer.
Battery life and charging
Pulse X's 850 mAh battery vs Pulse 15K's 600 mAh: 42% more capacity for 67% more puffs. The Pulse X needs more charge cycles per unit of life, but each charge gets you further.
In my testing:
- Pulse 15K: Needed charging every 2-2.5 days. About 6-7 total charge cycles across the device's life.
- Pulse X 25K (normal mode): Needed charging every 2.5-3 days. About 8-10 total charges.
- Pulse X 25K (pulse mode): Needed charging every 1.8-2 days. About 11-13 total charges.
Both charge in 35-45 minutes from dead. USB-C, no proprietary cables.
Cost-per-puff math
| Device | Price | Real puffs | Cost per puff |
|---|---|---|---|
| Pulse 15K | $17.99 | 13,500 | $0.00133 |
| Pulse X 25K (normal) | $18.99 | 22,000 | $0.000863 |
| Pulse X 25K (pulse) | $18.99 | 18,500 | $0.001027 |
Pulse X is 35% cheaper per puff in normal mode. Even running pulse mode exclusively (which most people don't), it's still 23% cheaper per puff.
Authenticity check (counterfeit problem)
Both Pulse and Pulse X have serious counterfeit problems in the gray market. The good news: they're easier to spot than most fake brands once you know what to look for.
Pulse 15K — real vs fake
- Real units weigh 56-58g. Fakes run 48-52g.
- "GEEKBAR" laser etch on bottom is sharp and slightly recessed on real units. Fakes are printed or stickered.
- Real packaging holographic security label shifts colors when tilted. Fake holos are static.
- Real units have a faint sweet flavor smell from the mouthpiece on first inspection. Fakes smell chemical or like nothing.
Pulse X 25K — real vs fake
- Real units boot with a Geekbar logo animation. Fakes boot to a generic battery-percentage screen immediately.
- Real screen colors are crisp and saturated. Fake displays are washed out, lower-resolution.
- Real weight: 62-64g. Fakes run 54-58g.
- Real units have the Geekbar branding on the front facing-side; fakes often misalign or skip this.
Buy only from listed at Vapekages. Vapekage sources both Pulse and Pulse X direct from Geek Bar's authorized US distributor — see Pulse 15K and Pulse X 25K product pages for authenticity documentation.
For a deep dive on identifying counterfeits across all major brands, read my Geek Bar fake-detection guide.
The verdict — which one should you buy?
Get the Pulse X 25K if: you vape daily, you want the better cost-per-puff, you appreciate having battery and juice level information, or you want to experiment with pulse mode for harder hits.
Get the Pulse 15K if: you specifically want the smallest, simplest form factor, you don't mind not knowing your battery level, or you're testing the brand for the first time on a lower upfront commitment.
For most people, the Pulse X 25K is the right answer. Extra $1 buys you 67% more puffs, a screen, and pulse mode. That's a no-brainer trade.
Frequently asked questions
Want more head-to-heads? See my Lost Mary NERA 70K vs Geek Bar Pulse X 25K comparison.
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