SMOK Gram 25 Vape Kit

Sixty-six grams. That is how much the whole kit weighs, mod and tank together. The Gram 25 is SMOK's smallest box mod, a pen-shaped zinc alloy body with a 900mAh battery, up to 25W of adjustable power, and a 0.69-inch OLED screen that shows your wattage, resistance, and puff count.

The Gram-16 tank sits on top with a 2ml capacity, threaded top fill, adjustable bottom airflow, and room for one coil type: the G16 DC 0.6Ω. Two coils in the box. USB-C charging in around an hour. Pirate Vapes ships it age-verified across the UK.

Why vapers choose this:

• 66g and pocketable, one of the lightest kits SMOK makes.

• A real OLED screen on a pen-sized body, so you always know your settings.

• 25W variable wattage with a single-button cycle, nothing complicated.

• Two coils in the box to get you started without buying spares straight away.

• USB-C charging in about an hour, so downtime is short.

SMOK Gram 25 Vape Kit Features

Sixty-Six Grams in Your Pocket

At 70 × 26 × 17mm and 66g, the Gram 25 disappears into a pocket or bag. The curved zinc alloy body sits flat against your palm, and the glossy aluminium finish looks clean without being flashy. If you want a vape that does not bulge out of a jacket or draw attention, this is about as compact as a mod-and-tank kit gets.

A Screen on a Pen

Most pen kits rely on LED colours to tell you what is going on. The Gram 25 fits a 0.69-inch OLED onto its side panel, showing wattage, coil resistance and a puff count. It is small but readable, and it means you know exactly what the device is set to without guessing from a coloured light.

Single-Button Wattage

One adjustment button cycles the wattage from 1W up to 25W, then loops back to the start. Hold it, and the number climbs. Quick and mindless. No menu, no second button, no up-and-down confusion. The fire button on top has an LED inside that shifts colour to show battery level.

The Gram-16 Tank

The tank is 16mm in diameter, stainless steel, with a 2ml TPD capacity. It fills from the top by twisting off the cap, and the bottom airflow ring adjusts from a tighter MTL draw to a slightly looser one. A child-safe coil installation system means the coil cannot be accessed without removing the tank from the mod first, which is a sensible safety feature.

One Coil, No Confusion

The Gram-16 tank takes the G16 DC 0.6Ω coil and nothing else. That sounds limiting, but it removes every ounce of decision fatigue. You buy one type of coil, screw it in, and it works at 15 to 25W. No compatibility charts, no wrong-coil mistakes, no wasted money. Just the coil and the tank, matched from the factory.

SMOK Gram 25 Vape Kit Colours

Five finishes on the same glossy aluminium body. Clean, simple, no patterns or gradients.

• Black - sharp, understated

• Grey - a muted, neutral tone

• Red - bold, eye-catching

• Blue - a cool, solid blue

• Rose Gold - a warm, metallic pink-gold

Check the picker for stock before ordering.

How to Set Up the SMOK Gram 25 Vape Kit

1. Charge the Gram 25 over USB-C until the LED shows full. About an hour from flat.

2. The tank arrives with a coil pre-installed. Twist the top cap off the Gram-16 tank and fill with e-liquid.

3. Give the coil a few minutes to soak before the first draw.

4. Press the fire button five times to power on, set your wattage with the adjustment button, and vape.

What's in the SMOK Gram 25 Vape Kit Box

You get the: 

• Gram-25 mod, 

• the Gram-16 tank, t

• wo G16 DC 0.6Ω coils (one pre-installed, one spare), 

• a replacement glass section, 

• a USB-C cable 

• and a user manual. 

E-liquid is not included. Add a bottle of Nic Salts or 50-50 E-Liquid to fill the tank. Need more coils? The Smok G16 Replacement Coils fit this tank.

Built for the Smok G16 Coil

The SMOK G16 DC coil is the only compatible coil option for the SMOK Gram-25 Kit and Gram-16 Tank. It comes in a 0.6Ω resistance and is designed to run between 15–25W, delivering a smooth MTL vaping experience.

The G16 is the only coil the Gram-16 tank accepts. It is a dual-wire coil (not mesh), threaded, and designed for MTL vaping with Nic Salts or 50-50 E-Liquid. You will find the kit and spare coils in our SMOK Vapes collection, with the full coil range in Vape Coils.

About SMOK

SMOK built its name on big mods and cloud-chasing tanks, but the Gram 25 is the opposite end of the range. Tiny, quiet, designed for the pocket. It is the kit you hand to someone who asks "what is the simplest vape I can buy?" and does not want to hear about wattage curves, coil libraries, or display menus. One coil, one tank, one button. That focus on simplicity is what makes it work, and the fact that it still has a proper OLED screen and variable wattage is a bonus you do not expect at this size.

Stock Up and Save

Two coils in the box get you started. After that, a 5-pack of G16 coils and a bottle or two of juice is all you need for over a month. The Gram 25 runs at low wattage, so both coils and liquid stretch further than they would on a bigger kit. Genuine SMOK, dispatched tracked, age-verified checkout, 2ml TPD tank. Browse MTL Vape Kits if you want to see what else is out there.

Conclusion

The Gram 25 does not try to be everything. It is a 66g pen that fits your pocket, shows your settings on a proper screen, and runs one coil at low wattage for a clean MTL draw. Two coils in the box, USB-C charging in an hour, and a running cost that is hard to undercut.

If you want the simplest mod-and-tank kit SMOK sells, this is it. Grab yours from Pirate Vapes with fast, age-verified UK delivery.

FAQs

How small is it really?

70 × 26 × 17mm and 66g with the tank attached. About the size of a thick marker pen. It fits flat in any pocket.

Can I use other coils in the Gram-16 tank?

No. The G16 DC 0.6Ω is the only coil this tank accepts. No mesh options, no other resistances. One coil, one fit.

What juice should I use?

Nic Salts or 50-50 E-Liquid at 10mg or 20mg. The 0.6Ω coil and 15-25W wattage range are tuned for thinner, higher-PG liquids. Avoid thick high-VG.

How long does the battery last?

Most of a day at MTL wattages. The 900mAh battery is modest, but at 15-25W it does not drain fast. USB-C charging fills it in about an hour.

Is there a fire button or just auto-draw?

Fire button. Press to vape; five clicks to turn on/off. There is no auto-draw on this kit.

Can I put the Gram-16 tank on a different mod?

Yes. The tank has a standard 510 thread, so it fits any 510-compatible mod. The coil still maxes at 25W, though, so there is no point running it on a high-power device.