Geek Bar Thermal Edition Guide: Pulse 15K & Pulse X 25K Flavors (2026)
The Thermal Edition is one of Geek Bar's most eye-catching limited runs, wrapping the familiar Pulse hardware in a heat-reactive finish that shifts shade as the device warms in your hand. Beyond the looks, the lineup spans both the 15,000-puff Pulse and the 25,000-puff Pulse X, so you can pick the format that fits how you vape. Here's a clear breakdown of the range, the flavors worth your attention, and which ones are in stock right now. For adults 21+ only.
What Makes the Thermal Edition Different
Two things set the Thermal Edition apart. First is the color-shifting shell, a cosmetic touch unique to this run. Second is the breadth: the same edition appears on two different devices. The Geek Bar Pulse 15K Thermal Edition collection covers the lighter, more pocketable 15K, while the Pulse X 25K versions step up to a larger battery, dual-core setup, and a longer-lasting 25,000-puff rating. Same look, two different capacities.
Best Pulse X 25K Thermal Flavors
If you want the longest runtime, the Pulse X 25K is the one to reach for. Orange Mint is the current standout and best-stocked pick, pairing bright, zesty citrus with a clean spearmint finish for something that reads fresh rather than heavy. If you lean toward crisp, single-fruit profiles, Pear of Thieves delivers light, juicy pear with a cool exhale. Both are live on the Pulse X 25K Thermal Edition collection page.
Best Pulse 15K Thermal Flavors
The 15K is the more compact, lighter option, and the Thermal flavors here lean summery. Peach Lemonade mixes ripe peach with tart lemonade for an easy warm-weather pick, while Raspberry Watermelon balances tangy berry against juicy melon. Prefer a bolder, fruit-punch style? Punch brings sweet tropical and berry notes in one. Stock on the 15K flavors moves quickly, so the popular picks tend to sell through first.
15K or 25K: Which Should You Pick?
It comes down to size versus runtime. Choose the Pulse 15K if you want a lighter device that's easier to carry and you're happy refreshing flavors more often. Step up to the Pulse X 25K if you'd rather buy less frequently and want the bigger battery and dual-core hardware behind a 25,000-puff rating. Flavor preference matters too, since the two devices don't share an identical menu, so it's worth scanning both Thermal collections before you decide.
Where to Buy the Thermal Edition
Because this is a limited run, the Thermal Edition isn't restocked indefinitely, and once a flavor sells out it may not return. Browse the full ranges on the Pulse X 25K Thermal Edition and Pulse 15K Thermal Edition pages to see what's in stock today. Orders over $99.99 ship free across the US, so stacking a few flavors is an easy way to clear that threshold. For adults 21+ only.
