DynaVap G3 vs M7 vs B2: Which One Should You Buy?
Buy the DynaVap M7 if you want one durable, all-stainless-steel device to keep for years. Buy the B2 if you want the most forgiving, pocket-friendly starter, and buy the G3 if you want the lowest-cost way to try the DynaVap click and mostly use it at home. This is also DynaVap's own advice for beginners: B2 for most people, G3 for the cheapest first try, M7 for a long-term, all-metal buy. All three are battery-free and use the same Captive Cap, which clicks when it reaches temperature.
We stock the M7 and the M7 XL. We do not currently list the G3 or the B2, so this guide is a fair comparison of all three, followed by the accessories we do carry. If you are new to this style of vaporizer, start with What is a DynaVap?, and browse more in our DynaVap guides.
- Quick comparison
- How a DynaVap works
- The G3
- The B2
- The M7 and M7 XL
- Screens and accessories
- First-session tips
- Which one should you buy?
1. Quick Comparison
| G3 | B2 | M7 | |
|---|---|---|---|
| Body | Borosilicate glass unibody | Silicone sleeve over a stainless steel vapor path | All stainless steel |
| Chamber | 0.05 g | 0.075 g | 0.1 g, reducible with Adjust-a-Bowl |
| Heat source | Torch only (induction heaters not recommended) | Torch or induction heater | Torch or induction heater |
| Best for | Lowest-cost first try, home use | Most beginners, carrying | Long-term, hands-on users |
| Durability | Glass, handle with care | Durable and pocket-friendly | Very durable |
| Water piece | No tapered mouthpiece for water pieces | 10 mm tapered mouthpiece | 10 mm connection on the M7 |
Specifications come from DynaVap and retailer listings, so check the maker's page for the model you buy. A torch comes with each of the three, according to DynaVap.
2. How a DynaVap Works
A DynaVap has no battery, screen or chip. You load a small bowl, heat the metal Captive Cap with a torch or an induction heater, and listen for a click. The click means the cap has reached temperature, so you draw. When the cap cools you hear a second, cooldown click, and you can heat again. DynaVap calls this one heat cycle, and says a full bowl usually takes two to four heat cycles. Our DynaVap September guides summary explains heat cycles, a missing click and upgrades.
Because technique does what firmware does on an electronic device, the main difference between models is how forgiving they are, how well they handle being carried, and how much you can modify them.
3. The G3: Low Cost, Glass and Best at Home
The G3 is a two-piece glass device with a stainless steel Captive Cap, a built-in screen and an anti-roll design. Its 0.05 g chamber is the smallest of the three. Glass is flavor-neutral and lets you see the vapor, which some beginners find helpful. DynaVap positions it as the lowest-cost way to try the click, and says it suits calmer, at-home use.
The trade-offs are real. Glass can break, so it is not the best pocket or bag companion. DynaVap explicitly does not recommend using an induction heater with the G3, because glass does not heat reliably that way, so a torch is the way to heat it. It also lacks the tapered connection and the interchangeable tips and condensers of the other models, so it is less of a platform to build on.
Choose it if: you want the cheapest first try, you will use it at a desk or table, and you like glass. Skip it if: you want to carry it daily or use an induction heater.
4. The B2: The Forgiving All-Rounder
The B2 is the 2025 update of DynaVap's entry line. It has a silicone sleeve that gives a grippy, anti-roll shape and keeps the body comfortable to hold, but the vapor itself travels through stainless steel only: tip, condenser and mouthpiece. Its bowl holds 0.075 g, it has a 10 mm tapered mouthpiece for water pieces, and it works with both a torch and an induction heater. DynaVap calls it the best choice for most beginners who want a solid daily driver, because it is durable and forgiving while you learn.
Choose it if: you want one balanced starter that you can carry. Skip it if: you want the all-metal feel and the larger bowl of the M7.
5. The M7 and M7 XL: The Long-Term Buy
The M7 is the all-stainless-steel model most people end up with. Our DynaVap M7 listing gives a 0.1 g tip chamber, with an Adjust-a-Bowl that halves the load, a redesigned finless tip with more mass for bigger draws and up to 20% less heat transfer to your fingers, and a Pivot-style rocker airport for manual airflow control. The Captive Cap clicks after roughly 5 to 7 seconds of heat. The device is made in the USA from stainless steel, and DynaVap says it is built for years of use. The trade-off is that it rewards technique: heat placement and steady rotation matter more.
The M7 XL keeps the same tip but adds a longer condenser assembly with a stainless steel mouthpiece, which gives a longer cooling path and a more comfortable grip. If the standard M7 feels short or hot in the hand, the XL is the version to look at.
Choose it if: you want something to grow into and modify. Skip it if: you want the cheapest possible way in. For a view of how a DynaVap compares to an electric device, see our Frolic vs DynaVap M7 comparison.
6. Screens and Accessories
Each DynaVap tip holds a small stainless steel CCD screen, and cleaning or replacing it keeps airflow even. Our stainless steel CCD screens are made by The Vapetrix, not DynaVap, to fit DynaVap tips, and come in packs of 5, 10 or 20, 8 mm across. For the full routine, read our DynaVap screen replacement and CCD maintenance guide. The DynaVap M accessories collection also has cooling stems, glass mouthpieces, a water bubbler and a water pipe adapter. These are made for devices that use DynaVap tips and the 10 mm connection, so check each product page before buying for a G3 or B2.
7. First-Session Tips for Any of the Three
DynaVap's beginner advice applies to all three devices, and it is the quickest way to get a good result from whichever one you buy:
- Pack gently. Use a medium to medium-fine grind and keep the pack light, so air can move. A tightly packed chamber is the fastest way to a restricted draw.
- Heat with intention. Keep the flame just off the cap and rotate the device steadily so the cap heats evenly.
- Respect the click. Draw after the first click, then wait for the cooldown click before heating again.
- Make small changes. If vapor is light, heat a touch longer next time. If it tastes roasted, heat a little higher on the cap or for less time.
The first week is mostly muscle memory, and a forgiving device makes that more enjoyable. That is the main reason DynaVap points most beginners to the B2, and why the M7 suits people who already know they like a hands-on routine.
8. Which One Should You Buy?
- Lowest cost to try the click, used at home: G3.
- One balanced starter you can carry: B2.
- A durable, all-metal device to keep and modify: M7, or the M7 XL for a longer cooling path.
- Not sure about a flame: consider whether an electronic device suits you better before buying any of them.
Whichever you choose, plan for a heat source (a torch, and later possibly an induction heater), a few spare screens and a little cleaning supply.
Final Thoughts
These three share the same idea and differ in material, bowl size and how much they ask of you. The G3 is the cheap, fragile, home-friendly entry. The B2 is the easy daily carry. The M7 is the one to buy once and keep. If you are leaning towards the M7, you can see the standard and XL versions in our DynaVap range, and our DynaVap M accessories collection has the screens and glass to go with them.
