Weed Carts and Vape Pens: A Buyer’s Guide for Canada

Burn 2 Gram Disposable Live Resin Vape

If you are shopping for a vape, the quickest place to see what is available is our weed carts and vape pens range, and this guide explains everything you will see there. A weed cart is one of the easiest ways to enjoy cannabis: no grinding, no rolling, very little smell, and a device that fits in a pocket. This is a plain-language walk through what a cart and a weed pen actually are, the main types, and how to pick one.

The short version

  • A cart is the tank that holds the oil. A pen is the battery that heats it.
  • 510 is the standard screw fitting, so most carts fit most batteries.
  • Disposables are sealed and ready to go. 510 carts let you keep one battery and swap flavours.
  • Distillate leads on strength and value. Live resin leads on flavour.
  • New to it? Start with a closed system and a low heat setting.

What is a weed pen and what is a cart?

A weed pen is a small battery-powered device that heats cannabis oil into vapour you breathe in. A cart, short for cartridge, is the part that holds the oil. Put simply, the cart is the tank and the pen is the battery. People use “weed pen”, “vape pen” and “cart” loosely to mean the same thing, which is why the names get mixed up.

Most reusable setups come in two pieces: a refillable or replaceable cartridge and a separate battery that screws onto it. The other common option is an all-in-one disposable, where the battery and the oil are sealed together in one unit you use and then recycle.

The parts of a weed pen

Every pen, however simple it looks, is built from the same four parts. Knowing them makes the product listings much easier to read.

  • The battery. The power source, and on a two-piece setup the part you keep. Most have a button, and many have two or three heat settings.
  • The cartridge or tank. Holds the oil. On a 510 setup this screws onto the battery and is replaced when empty.
  • The atomiser. The heating element inside the cartridge, usually a small coil or ceramic element. It is what actually turns oil into vapour.
  • The mouthpiece. The tip you draw from, normally built into the top of the cartridge.

On a disposable all four are sealed into one body, which is why there is nothing to assemble and nothing to replace.

Closed system or open system

The clearest way to split the vape market is by whether the device is sealed or not.

Closed systems use pre-filled, sealed cartridges or are sealed entirely, as a disposable is. You do not refill them. They are the simplest to use, the most consistent, and the easiest to carry, and they are what most buyers mean when they say weed cart.

Open systems are refillable. You add your own oil or concentrate to the tank. They give you more control and produce less waste over time, but they take more looking after and more knowledge to run well.

If you are new to vaping, a closed system is the sensible starting point.

The main types of weed vape

A 510 thread vape battery next to its cartridge, showing the screw fitting that joins the two
The 510 screw fitting is the industry standard, which is why one battery works with almost any cartridge.

510 thread carts. The 510 is the standard screw fitting used across most of the industry, so a 510 cartridge works with almost any 510 battery. This is the most flexible option, because you can keep one battery and swap cartridges. A 1 gram vape cart on a standard 510 battery is the classic starting point, and batteries are widely available anywhere vapes are sold.

A sealed all-in-one disposable live resin vape in its retail packaging
On a disposable the battery and the oil are sealed into one body, so there is nothing to assemble.

Disposable vapes. These come pre-filled and pre-charged, ready to go straight out of the packet, then you recycle them when they are done. They are the simplest option and a good pick if you do not want to think about batteries at all, like our disposable live resin vape.

Dab pens. A dab pen is a different device built for thicker concentrates like wax, shatter or rosin rather than oil in a cartridge. If you are buying a cart, you want a vape pen, not a dab pen.

What is inside the cart: distillate versus live resin

A one gram distillate vape cartridge in its packaging, showing the clear refined oil inside
Distillate is clear and highly refined. Live resin looks darker and cloudier because it keeps more of the plant terpenes.

The oil in a cart is usually one of two things, and it changes the experience.

Distillate is a clear, highly refined, very high THC oil with little natural flavour of its own. It is clean, strong and consistent. Live resin oil is made from fresh-frozen cannabis, so it keeps far more of the plant’s natural terpenes and tastes much more like the strain it came from. Distillate carts lead on strength and value, live resin carts lead on flavour. Which one suits you is a question of whether you care more about potency per dollar or about taste. If you want to go deeper on this, our guide to live resin vs live rosin covers how these extracts are made.

Distillate carts and live resin carts compared
 DistillateLive resin
Made fromRefined, stripped-back cannabis oilFresh-frozen cannabis
TerpenesFew of the plant’s ownKeeps far more of them
FlavourNeutral and cleanTastes like the strain it came from
THCTypically the higher of the twoUsually a little lower
AppearanceClear to pale goldDarker, cloudier, sometimes sauce-like
Best forStrength and valueFlavour

How to use a weed pen

If it is a disposable, you simply inhale, and many turn on automatically when you draw. For a 510 battery, charge it, screw on the cart, and if it has a button click it five times to switch on. Start with a short, gentle draw and wait a moment before the next one. Lower heat settings protect the flavour and the oil, so there is rarely a reason to run a battery at its highest setting.

A few habits make a cartridge last longer. Store it upright so the oil sits over the coil rather than pooling at the mouthpiece. Keep it out of a hot car, because heat thins the oil and can cause leaks. If the vapour tastes harsh or burnt, turn the heat down rather than drawing harder.

The one habit that makes a cart last

Store it upright so the oil sits over the coil instead of pooling at the mouthpiece, and keep it out of a hot car. If the vapour ever tastes harsh, turn the heat down rather than drawing harder.

Is vaping cannabis different from smoking it?

It is a different process. Smoking burns plant material and creates smoke; a vape heats oil until it turns to vapour, without combustion. That is why vapour carries far less smell and clears a room faster, which is the main practical reason people switch.

Effects usually arrive quickly, within a few minutes, and that makes a vape easy to pace: take one draw, wait, and see where you are before the next. Cannabis vaping is not risk free and the long-term research is still developing, as Health Canada’s overview of vaping sets out, so buy from a retailer that tells you what is in the cartridge and start low if you are new to it.

How to choose one

Think about three things: the format, the oil, and the battery. Pick a disposable for zero fuss, or a 510 cart plus battery if you want to reuse the battery and swap flavours. Choose distillate for clean strength and value, or live resin for flavour. And if you go the two-piece route, a basic 510 battery covers almost every cartridge on the market.

Buying weed carts and vape pens in Canada

Happy Clouds is a Canadian mail-order retailer, so you can order carts and disposables online for discreet shipping across the country. Shipping is free on qualifying orders, every order earns HAPPYPOINTS, and you can browse the full cartridges and vape range in one place. Cannabis is legal for adults in Canada, and you must be of legal age in your province to order.

Happy Clouds

Canadian mail-order, discreet shipping nationwide, free on qualifying orders, and every order earns HAPPYPOINTS. Browse the full cartridge and disposable range linked at the top of this guide.

Frequently asked questions

Why is my cart not hitting?

Usually a clog or a loose connection. Take a few gentle draws with the battery switched off to clear the airway, check the cart is screwed on snugly rather than over-tightened, and make sure the battery is charged. Cold oil also draws badly, so warm the cart in your hand for a minute first.

How long does a weed cart last?

There is no fixed number. It depends on the size of the cart, the device and how long each draw is. Running a lower heat setting stretches any cart noticeably further, because less oil vaporises with each pull.

How do you dispose of a used cart or disposable?

Not in household rubbish. Both contain a lithium battery or electronics, so they belong in battery or electronics recycling. Many municipalities in Canada take them at a depot, and some retailers run a take-back bin.

Do vape carts set off smoke alarms?

Rarely, because vapour is not smoke, but it is not impossible. Dense vapour close to a sensitive optical alarm can trigger it. Vapour also clears far faster than smoke, so it lingers much less.

Further reading: Health Canada on cannabis in Canada · Cannabis Act (Government of Canada)