XMAX V4 Pro

The V4 Pro runs on a standard 18650 battery with 2,550 mAh. This is not a built-in cell — it pops out in seconds and swaps for a fresh one. If you’re out and about, just carry a spare and you’re back to full runtime instantly.

A single charge lasts about 50 minutes of use at medium temperature, which translates to roughly 6–8 sessions. Charging happens through the side-mounted USB-C port in about 2 hours. Passthrough charging is supported, so you can vape while the device charges.

For battery longevity, keep the charge level between 20% and 80%. Regularly draining it to zero or leaving it plugged in overnight shortens cycle life noticeably. An external 18650 charger like the XTAR VC2 charges more gently than the internal USB-C circuit and costs under $15.

The biggest advantage over devices with built-in batteries: after 300–500 charge cycles, when capacity drops noticeably, you swap the 18650 for $5–8 instead of replacing the entire device. Samsung 25R or Sony VTC5 are proven cells with enough discharge current for the V4 Pro.

A standout feature of the V4 Pro is its 3-stage airflow. Three airflow resistance levels are available: tight (more flavor, less vapor volume), medium (balanced), and open (easy draw, bigger clouds). This lets you match the device to your personal draw style.

The vapor path is isolated and channels hot air separately from the electronics to the chamber. The result is clean flavor without any plastic or metal taste in the vapor. The magnetically attached glass mouthpiece doubles as a native 14mm WPA — a clever dual-purpose design.

In practice, the airflow setting makes a clear difference. Stage 1 (tight) works best at lower temperatures for flavor chasing: draw slowly, 8–10 seconds per pull. Stage 3 (open) suits higher temperatures above 200 °C and produces noticeably thicker clouds. Most users settle on stage 2 as their everyday setting.

The glass vapor path has another benefit: it soaks clean in isopropanol within minutes. Unlike devices with permanent plastic mouthpieces, no flavor residue builds up over weeks of use.

At 138 g and dimensions of 2.5 x 2.5 x 16 cm, the V4 Pro has a slim pen design that fits any jacket pocket. The housing is matte plastic with a comfortable grip. Despite the low weight, the device feels solid and well-built.

The OLED display shows temperature, battery level, heating mode, and session timer at a glance. Operation uses a single multi-function button: five clicks to power on/off, three clicks to switch modes, hold to start heating. The V4 Pro auto-shuts off after a session — handy when you forget.

Compared to a smartphone, the V4 Pro is about twice as thick but similar in length. In a pants pocket, it barely stands out. The black color and understated design keep it discreet — unlike flashier devices like the Crafty+ with its green accents.

For transport, a small doob tube or hardcase is recommended. The glass mouthpiece is the most fragile part and shouldn’t sit loose in a pocket. Some users buy a spare glass mouthpiece right away — at around $8, it’s a sensible insurance policy.

The V4 Pro’s glass mouthpiece doubles as a native 14mm WPA (Water Pipe Adapter). It fits directly into 14mm glass joints and works with 18mm pieces via a simple adapter. Water filtration cools and smooths the vapor — especially noticeable at higher temperatures.

Dosing capsules are not supported. The chamber is loaded directly, which means slightly more cleaning effort but no impact on flavor. XMAX sells replacement glass mouthpieces, silicone caps, and cleaning accessories as original spare parts.

For third-party accessories, an external 18650 charger (XTAR VC2 or Nitecore D2), a second 18650 battery for on-the-go, and a small brush set for chamber cleaning are the most worthwhile additions. A grinder with medium coarseness produces the best results — material ground too fine can block the airflow.

Other manufacturers offer 14mm glass adapters in various lengths and shapes that extend the vapor path and cool the vapor further. If you primarily use the V4 Pro through water, investing in a small bubbler rig makes sense — decent ones start at around $20.

Find more recommended devices and accessories on the XMAX brand page.

The XMAX V4 Pro is built for anyone who wants pure convection at a fair price. Replaceable battery, OLED display, on-demand mode, and 3-stage airflow — this combination is unique in its price bracket. Vapor quality clearly surpasses most conduction devices under €100.

Compared to its predecessor, the V3 Pro, the V4 Pro offers true convection instead of hybrid heating, an on-demand mode, OLED display instead of LEDs, 3-stage airflow, and the magnetic glass mouthpiece. If you’re choosing between the two: the V4 Pro is better in every way, at only a small premium.

Best suited for: Beginners who want clean-tasting vapor without spending over €80. Users who value a replaceable battery. Switchers from conduction devices curious about the convection difference.

Less suited for: Those who need dosing capsules (not compatible), expect app control (not available), or want a dual-use device for herbs and concentrates. Users demanding very high vapor volume should look at a desktop unit or the Mighty+ instead.

In terms of price-to-performance, the V4 Pro ranks among the strongest portable convection vaporizers on the market.

• XMAX/XVape Manufacturer Website
• XMAX V4 Pro Product Page

The M7 is entirely stainless steel and practically indestructible. No battery means nothing to age or run flat. A jet flame lighter is all you need. Bong users can fit it directly on 10 mm joints.

The M7 disassembles without tools: condenser, O-rings, cap, and tip separate by hand. All metal parts can soak in isopropyl alcohol (99%) for 15 minutes. Remove O-rings first — prolonged alcohol exposure makes them brittle.

Day-to-day, push a pipe cleaner through the condenser every three to four sessions. Stubborn residue on the tip comes off with a brief soak. Stainless steel tolerates rough cleaning better than titanium — scratches don't affect performance.

Schedule

The Adjust-A-Bowl is DynaVap's chamber size system. Standard mode holds roughly 0.1 g; with the Adjust-A-Bowl insert, capacity drops to about 0.05 g — perfect for microdosing or potent material.

DynaVap dosing capsules fit directly into the tip and keep the chamber clean. Reloading takes seconds, and capsules help maintain even extraction.

The M7 works equally well with or without capsules. Frequent travelers benefit from pre-filled capsules. For maximum vapor production, load the chamber directly — direct contact between material and tip walls improves conduction extraction.

Butane vaporizers like the M7 need no outlet or battery — a jet flame lighter is enough. Compared to battery devices, there are practical differences:

• Air travel: Jet flame lighters are allowed in carry-on luggage (1 per person, filled). The M7 itself counts as personal smoking accessories.
• Cold weather: Butane works reliably down to about −2 °C. In colder conditions, keep the lighter in an inner pocket.
• Discretion: With no electronics, the M7 produces no LED light or vibration. Only the cap click is audible.

At roughly 45 g and 9.2 cm, the M7 is one of the most compact vaporizers in our price comparison. It fits any shirt pocket.

DynaVap offers a wide range of accessories compatible across all DynaVap models:

• Induction heaters: Ispire Wand, Caldron, or VonG heater — heat the cap in 5–8 seconds without a flame.
• DynaStash: Magnetic transport container for the M7 plus a material compartment.
• WPA (10 mm): The M7 fits 10 mm joints directly. Adapters are available for 14 mm and 18 mm.
• Replacement caps: Swap the Captive Cap for Low-Temp or Adjust-Temp variants.
• Simrell stems: Premium cooling stems (Stinger, MVS) for improved cooling and aesthetics.

Regular cleaning keeps the M7 performing at its best and ensures pure flavor. Brush out the chamber after every session to remove loose residue. Clean the mouthpiece and vapor path weekly with isopropyl alcohol (90% or higher).

Cleaning Schedule

Common Mistakes to Avoid

• Never use water inside the chamber — only isopropyl or dry cleaning
• Do not use sharp metal tools in the vapor path
• Replace screens when draw resistance increases

Choosing the right temperature on the M7 determines flavor, vapor density, and active compound profile. Lower temperatures (170–185 °C) emphasize terpenes and deliver mild, aromatic vapor. Higher temperatures (195–210 °C) produce thicker clouds and stronger effects.

Temperature Zones

Practical Tips

• Start at 180 °C and increase in 5-degree steps
• Finer grind often needs 5–10 °C lower temperature
• In cold environments, raise starting temp by 5 °C

The M7 battery lasts several sessions with typical use. For maximum lifespan, keep the battery between 20% and 80% and avoid deep discharge. USB-C charging with a quality power adapter speeds up charging.

Battery Tips

• Do not leave on the charger permanently — unplug after 100%
• For replaceable batteries: use original or recommended cells
• Battery performance drops in cold — let it warm up before sessions
• Pass-through charging (if supported) allows use while charging

Both use the same hybrid heating with butane and reach ~220°C in just 7 seconds. The XL has a longer body for cooler vapor. The standard M7 is more compact and ~40 EUR cheaper.