The blu PRO Kit is a refillable, pen-style MTL vape built around a 1100mAh battery and a compact clearomiser—simple, pocket-friendly, and currently selling for $17.99. It’s a strong fit for adult nicotine users who want a straightforward daily-carry pen, and a weaker fit for anyone chasing big clouds, modern USB-C charging, or a larger tank.
Product Overview
| Device | Overall Score | Pros | Cons | Ideal For |
|---|---|---|---|---|
| blu PRO Kit | 3.9/5 | Steady MTL draw; strong battery for a pen; simple controls | Small tank; micro-USB; proprietary clearomiser ecosystem | Adult nicotine users who want a no-fuss refillable pen for breaks, commutes, and errands |
Final Verdict
The blu PRO Kit is a practical, old-school vape pen: consistent MTL pull, decent flavor for its class, and battery behavior that stays predictable day to day. The trade-offs are just as clear—micro-USB charging, a small tank, and a “stay in the blu lane” parts situation with the PRO clearomiser.
Who It’s For
- Adult nicotine users who prefer a tighter, cigarette-like MTL draw
- Anyone who wants a simple pen for work breaks and short sessions
- People who value steady output more than features
Who It’s Not For
- Cloud-chasers or DL/RDL users who want airy airflow
- Anyone who insists on USB-C and faster charging convenience
- People who hate frequent refills or small-capacity tanks

How We Tested
We ran the blu PRO Kit through daily-carry use (commutes, desk breaks, errands) and controlled sessions at home to score Flavor, Throat Hit, Vapor Production, Airflow/Draw, Battery Life, Leak Resistance, Build Quality, Ease of Use, and Portability. We tracked charge time on micro-USB, noted the 10-second cut-off behavior, and checked for condensation after pocket carry. Vape and nicotine products are for adults only; use isn’t recommended for minors, pregnant people, or people who don’t use nicotine, and all experience notes are subjective—not medical advice.
Our Testing Experience
The first thing I noticed was how “pen simple” it feels: charge it, fill the clearomiser, click the button, and you’re basically set. The draw landed where I expect a classic MTL pen to land—slightly restricted, not airy, with a clean mouthfeel when the tank is fresh and the juice level stays above the window line. On a long pull, the safety cut-off kicked in right around 10 seconds, which saved a couple of “oops” moments during distracted testing.
Battery behavior was the headline for me. From empty to full, I averaged about 3 hours 25 minutes on micro-USB, and on moderate MTL use I got roughly a day and a half before the output started feeling a little soft. Marcus pushed it harder (longer, more frequent sessions) and forced the battery into a “recharge tonight” pattern. Jamal’s quick, on-the-go puffs highlighted the real annoyance: the 1.8 mL tank is easy to refill, but you do end up refilling more often than you’d want on a busy day.
What we liked
- Consistent MTL draw with a stable, predictable feel
- Battery performance that holds up well for a pen-style kit
- Simple control scheme with a reliable cut-off
Who it is best for
- Adult nicotine users who take short, frequent MTL sessions
- Anyone who wants a “backup pen” that’s easy to live with
- Commuters who prioritize pocketability over features
Where it falls short
- Small tank means more refills than most modern pods
- Micro-USB feels dated and slower than newer standards
- Clearomiser dependence limits plug-and-play flexibility

Pros & Cons
| Pros | Cons |
|---|---|
| Consistent MTL draw | Small 1.8 mL tank means frequent refills |
| 1100mAh battery feels strong for a pen | Micro-USB charging feels dated |
| Straightforward control and safety cut-off | Not a cloud-focused device |
| Clear e-liquid window helps prevent dry pulls | Clearomiser ecosystem limits cross-compatibility |
| Good “grab-and-go” ergonomics | Condensation can build up with heavy pocket carry |
| Reliable day-to-day output | Not much room to tune airflow or power |
Details
- Price: $17.99
- Device type: refillable vape pen kit (open system) with PRO clearomiser
- Battery: 1100mAh rechargeable
- Charging: micro-USB; measured full charge ~3h 25m (0–100%)
- Tank: top-fill clearomiser with e-liquid window; 1.8 mL capacity
- Safety/indicators: LED battery indicator, overcharge protection, ~10s safety cut-off
- Size/weight: 173.4mm tall; listed weight 92g (my scale: 91g assembled, empty)
- In the box: device/battery, PRO clearomiser, USB charger/cable (plus manual depending on retailer packout)

Review Score
| Metric | Score | Remarks |
|---|---|---|
| Flavor | 3.7 | Clean for an MTL pen, but not “pod-tech” vivid |
| Throat Hit | 3.8 | Satisfying on MTL pulls, can get sharp if chain-used |
| Vapor Production | 3.4 | Moderate output; clearly not built for clouds |
| Airflow/Draw | 4.0 | Nicely restricted MTL feel with steady activation |
| Battery Life | 4.1 | Strong for the form factor; holds steady before tapering |
| Leak Resistance | 3.5 | Generally tidy, but condensation shows up with pocket carry |
| Build Quality | 3.9 | Solid pen feel; clearomiser fit stays dependable |
| Ease of Use | 4.2 | Minimal learning curve; fill, click, vape |
| Portability | 4.3 | Slim, easy to pocket, good “grab-and-go” profile |
| Overall | 3.9 | A reliable, basic MTL pen with a few dated compromises |
Choosing the blu PRO Kit
Pick the blu PRO Kit if you want a tight MTL draw, simple controls, and a pen that behaves consistently across short sessions. Skip it if you need USB-C, larger capacity, or a more modern pod ecosystem with stronger flavor intensity and easier replacement parts.
If you want a more modern MTL pod platform with broader pod options, consider Vaporesso XROS 4. If you want a compact pod with strong everyday usability and a wide MTL-friendly range, consider Uwell Caliburn G3.

Limitations
For all its “works every time” simplicity, the blu PRO Kit is still a dated-feeling setup in 2026.
- Small tank capacity pushes frequent refills in real daily carry
- Micro-USB charging is slower and less convenient than newer standards
- Limited tuning: you’re mostly locked into a single style of MTL experience
blu PRO Kit vs Alternatives
Why choose these models
- You want a classic MTL pen form factor that’s slim and predictable
- You prefer simple controls over screens, menus, and modes
- You’re fine living inside a clearomiser-based ecosystem
Alternatives to consider
- Vaporesso XROS 4: more modern pod platform and feature set for MTL users
- Uwell Caliburn G3: compact pod system built for MTL/RDL flexibility
- Innokin Endura T18 II: a beginner-friendly MTL pen with a more traditional “vape pen kit” feel
Pro Tips for blu PRO Kit
- Fully charge once before day-one use to stabilize early battery behavior
- After filling, let the clearomiser sit a few minutes before the first long session
- Keep e-liquid above the window line to avoid dry, papery hits
- Use shorter pulls—if you ride the limit, the safety cut-off will interrupt you
- Wipe the mouthpiece and top area daily; condensation is the sneaky mess-maker
- Keep it upright in a pocket or bag when possible; it reduces seepage and gurgle
- Don’t over-tighten the clearomiser; snug is enough to keep seals happy
- If flavor dulls or the draw turns “wet,” replace the clearomiser rather than fighting it
- Charge on a stable surface and unplug after a full charge to reduce heat cycling
- Treat it as an MTL pen: if you demand airy airflow, you’ll end up disappointed
FAQs
Is the blu PRO Kit better for MTL or DL?
It’s an MTL-focused pen. The draw is naturally restricted, and the vapor style feels built for tighter, cigarette-like pulls rather than airy, cloud-heavy hits.
How often did you have to refill it?
In regular daily use, I refilled it multiple times per day when it was my primary device. The 1.8 mL clearomiser is convenient to fill, but it’s not “all-day tank” capacity.
Does it leak in a pocket?
I didn’t see dramatic leaking, but I did see light condensation buildup after pocket carry and back-to-back sessions. A quick wipe keeps it under control.
How’s the battery in real use?
For moderate MTL use, it comfortably made it through a full day and then some. Heavy use pushed it closer to a nightly charge routine, but the output stayed fairly consistent until late in the cycle.
About the Author: Chris Miller