Eleaf iJust P40 Kit Review by Antony Lord

Review Date: 


Eleaf iJust P40 kit

Eleaf iJust P40 kit

The Electronic Cigarette company has sent over the latest entry in the long running ELeaf iJust series of kits, and this time it’s a small starter kit aimed at the beginner to intermediate market. The new ELeaf iJust P40 uses the same pod as the iJust D20 that I took a look at a few months ago, coupled with GTL coils which I’ve had great success with in the past. One of the girls at work is still using the iJust D20 as her daily driver so I had high hopes for this one right out of the gate, especially with Eleaf’s claim that this is “simple, versatile and portable”.


  • 32 x 25.5 x 102 mm
  • 65 grams
  • 2ml top fill pod
  • GTL coil system
  • Integrated airflow control
  • Output 10~40 watts
  • 1500mAh internal battery
  • 2 Amp charging via USB-C

Eleaf iJust P40 kit unboxing

The iJust P40 comes in a range of bright colours (coral, green, yellow, and red), plus the obligatory black for those who don’t want to draw too much attention. This comes nicely packaged with a frosted plastic lid so you can see exactly what you’re getting at the time of purchase and, as you can see, I was sent the green (greenery) version for review. Also included in the box you’ll find two GTL coils, a USB-C charging cable, plus the usual brief user guide and warranty card.

Eleaf iJust P40 kit close ups

Premier Ecigs

The ELeaf iJust P40 is surprisingly small, I can hide this in the palm of my hand with just the pod peeking out…you wouldn’t want to use it like this though because you’d blank the air intake slots on either side of the kit which are adjusted with the lever on the back. The brightly coloured main body uses the same soft touch plastic as the iore Qube kit I took for a spin recently with a harder black plastic making up the control panel and top of the unit. The branding isn’t too over the top either with a simple ELeaf logo on one side and iJust P40 on the other.

This has a teardrop design which is very comfortable in use, and when you couple this with the small size and extremely light 65 gram weight, it makes for an excellent choice for daily use, you’ll barely notice it in any pocket. One aspect I wasn’t quite as keen on though was the control panel. There’s a noticeable rattle from the main power button, although in its defence, it does have a nice positive click and the concave design makes it easy to locate with a thumb or finger. At the base are two small up and down buttons to adjust the power output which you can alter between 10 and 40 watts in 5 watt increments, so whilst you gain a better degree of control than many basic kits, you lack the fine tuning found on a more advanced setup. The worst part though is the apparent inability to lock the wattage against accidental adjustment and I’ve found this has got knocked off my chosen setting a few times whilst in pockets so that’s definitely something you’ll want to keep a check on.

Eleaf iJust P40 kit base

You do get some battery capacity indication here with a small coloured LED just below the power button which lights up green above 60%, blue above 20%, and red below this. Charging is done via a USB-C port on the base of the unit, and I’m also pleased to see some emergency battery venting holes here as well just in case the worst should happen. ELeaf promises 2 Amp fast charging here and for once this didn’t disappoint with a peak charging rate of 1.97 Amps recorded in my test. This means that I could go from a completely flat battery to 100% charge in just 59 minutes with a final recorded capacity of 1448mAh which was very impressive, it did get a bit warm to the touch though with such rapid charging.

Eleaf iJust P40 kit pod fitting


The iJust P40 uses the same pod as the earlier D20 kits so it’s nice to see some cross compatibility creeping into the line-up and this sits in the recess at the top of the device. Whilst you do get adjustable airflow here, I was a tad disappointed to find a lack of any auto draw functionality which I feel is perhaps a bit of a missed opportunity. You will get a bit of condensation build up under the pod as well, so I’d recommend taking this off and giving everything a wipe down periodically even with that convenient top fill.

Eleaf iJust P40 kit top cap and tank

The 2ml pod utilizes a modern press fit coil system with a sliding top fill design and a removable 510 drip tip. The top fill system is held firmly in place whilst closed by a small spring loaded ball bearing on the underside which means you shouldn’t have any concerns about this coming open by accident. My colleague at work has managed to break one of these but luckily spare pods are available and are fairly inexpensive should this happen to you.

Eleaf iJust P40 kit coils

Two coils are included in the kit, a 0.8ohm for mouth to lung/restricted direct lung and a 0.4ohm coil for a (tight) direct lung draw. These are both GTL coils which I’ve always found to be very reliable and give great flavour thanks to their modern Kanthal mesh cores. The 0.8ohm coil is my personal favourite although mouth to lung purists may well find this far too loose for their liking, and you’d need to pick up a pack of the 1.2ohm coils if that’s the case.



  • Compact and lightweight
  • Great battery life
  • Rapid charging
  • Uses the tried and tested GTL coils


  • Inability to lock the wattage
  • Wattage only adjustable in 5 watt increments
  • Gets a bit warm whilst charging


I’ve had a great time with the ELeaf iJust P40, and just like the earlier iJust D20 these make excellent daily drivers. With the 0.8ohm coil, I was easily able to get a couple of days use out of the 1500mAh battery, and that rapid charging capability makes this even more attractive. It’s great to see ELeaf sticking with a single ecosystem as well by reusing the D20 pod and the GTL coils which are readily available. Despite a couple of niggles with the control scheme, I can heartily recommend this kit.

Many thanks to The Electronic Cigarette company for sending the ELeaf iJust P40 out for review.

Eleaf iJust P40 kit

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 Antony Lord
Article by Antony Lord
I was a twenty a day smoker for 25 years and like most smokers I was always going to quit "next week". Having hit my mid forties and having the usual smokers cough and difficulty with anything more than moderate exercise it was obviously time to give up the cancer sticks. I tried vaping in 2013 but it wasn't until 2016 that I fully made the switch and gave up cigarettes completely.
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