Lemon Heads Geek Bar Pulse X

Capacity and runtime. The Pulse X carries 18 mL and is rated for 25,000 puffs against the Pulse 15K's 16 mL and 15,000. Both use a dual mesh coil and both have a Pulse boost mode, so the flavor character is close and the Pulse X simply lasts longer.

Each device is pre-filled with 18 mL of 50mg salt nicotine and is not refillable. When the e-liquid is gone the device is finished. It is intended for adults 21 and over who already vape or smoke.

It charges over USB-C. Plug it in when the vapor starts to thin, which usually means the battery rather than the e-liquid. A full charge takes well under an hour and the device keeps its e-liquid the whole time.

The Pulse X has a battery and e-liquid display, so both levels are readable at a glance rather than guessed. Flavor fading and a faint burnt taste mean the e-liquid is genuinely finished, while a blinking light on its own usually just means it needs charging.

Miami Mint is a cool spearmint rather than a sharp menthol, sweet at the front and clean on the exhale without the icy burn some mint flavors carry. It is one of the most ordered flavors in this line and reads as an all-day option rather than an occasional one.

At a typical 400 to 650 puffs a day, 25,000 puffs works out to roughly six weeks to two months. Heavy all-day vaping brings that down considerably, and light use stretches it well past two months.