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