Arrived next day as promised
Really pleased with the order overall. Everything arrived as expected, well packed, fast dispatch.
HayatiThe Mr Blue Hayati Pro Max Plus 4000 Replacement Pods by Hayati in Mr Blue at 10mg and 20mg. Free UK delivery over £20, same-day dispatch on weekday orders before 4pm.
This listing is for a replacement pod, not a complete vape. The Hayati Pro Max Plus 4000 Replacement Pods in Mr Blue are pre-filled, ready-to-fit pods built for the Hayati Pro Max Plus 4000 rechargeable device. You do not fill them, you do not prime a coil by hand and you do not measure out liquid. You pull the spent pod off the device, click the new one into place and carry on. That convenience is the core appeal of a closed pod system, and it explains why this format has grown since throwaway vapes were removed from sale in the UK.
The legal background matters here. From 1 June 2025 the sale of single-use disposable vapes has been prohibited in Great Britain. A rechargeable device with swappable pods sits comfortably on the right side of that rule because you keep the battery hardware and replace only the pod. Replacing a small plastic pod every few days is a much smaller waste burden than binning a whole lithium cell and circuit board each time, which is a genuine environmental gain even if it is not a perfect one.
The key facts at a glance:
If you already own the device and like the flavour, this is the page for you. If you do not own the device yet, you will need to buy it separately, because these pods are useless on their own.
The 4000 in the name is a puff rating, and it deserves a plain explanation. Manufacturers arrive at puff counts through machine testing that uses a set draw length, a set power level and an assumed volume of liquid per puff. Real people draw longer or shorter, harder or softer, and the number moves with them. A light mouth-to-lung user taking short, sparing draws will land nearer the headline figure. Someone taking long, frequent draws will empty a pod noticeably sooner.
There is also a UK-specific wrinkle. Pods sold here are limited by law to 2ml of e-liquid, and nicotine strength is capped at 20mg/ml. A 2ml pod simply cannot hold the volume that a 4000-puff claim would imply in markets with looser rules. So read 4000 as a range name and a best-case estimate. A more honest way to plan is in days rather than puffs: a moderate user usually changes a pod every few days, a light user can stretch one toward a week or more, and a heavy user will go through one faster.
In daily use the pod behaves like other draw-activated pod systems in its class:
Habits shape the numbers more than the packaging does. Short two-second draws with a pause between them extend life. Long chain-vaping sessions shorten it and heat the coil harder, which also dulls flavour faster. If you want a realistic figure, note the date you fit a pod and the date it runs out, repeat that twice, and use your own average. That figure is worth more than any number on a box.
Mr Blue is a name-led flavour rather than a literal ingredient list. The name points to a blue-fruit profile, and the shop does not publish a formal tasting breakdown from the manufacturer, so here is an honest description of the territory rather than a made-up recipe. Blue-led flavours in this family of pods usually combine a sweet blue berry note with a blue raspberry candy character, and many carry a light cool finish. If a precise ingredient list or cooling level matters to you, check the product description on this page and the wording on the pack when it arrives.
What most people can reasonably expect across a single puff:
Sweet profiles behave in a particular way over the life of a pod. Sweeteners in e-liquid leave a thin film on the coil and wick, and even a mesh coil is not immune to build-up. If you chain-vape, you may notice the flavour thinning sooner than it would with a drier tobacco or mint profile. That is normal and is not a fault. Spacing your puffs out helps, and so does swapping to a fresh pod when the taste fades rather than pushing a tired one to the end.
It is also worth knowing that taste is personal and changes with context. Hot drinks, coffee and food leave residue on the palate that mutes sweet flavours, so a pod can seem weaker after a meal or a brew. Rinsing your mouth with water and waiting a minute often restores it. If you like fruit flavours but dislike overly sugary ones, try a few short puffs before committing to a multi-pod order, and consider a single pod first.
If you want a clear, undeniably icy experience, look at a flavour whose name states ice or menthol. If you want a straightforward sweet blue profile with a fruit-sweet centre, Mr Blue is aimed at exactly that kind of vaper.
Replacement pods in this style are moulded plastic units with an integrated mouthpiece, a sealed liquid chamber, an air intake and contact points at the base that connect the coil to the device. The design is deliberately simple. There is no fill port to open, no coil to screw in and no tank to reassemble. Every moving part that is removed is one less place for a leak to begin, which is the main engineering argument for closed pods.
When your pods arrive, a ten-second inspection saves frustration later:
Build quality at this price point is what you would expect from a lightweight plastic consumable. It is light, easy to handle and designed to be used once and replaced, not refilled. You should not try to refill these pods. Prising one open damages the seals, risks contaminating the coil and wick, and can lead to leaking inside your device. If you want something you can top up yourself, a refillable pod kit with a separate bottle of nic salt is the better route.
Storage affects build durability more than most people realise. Plastic pods and sealed liquid do not enjoy heat, so keep spare pods somewhere cool, dry and out of direct sun. Do not leave them in a hot car, on a radiator or in a coat pocket against your body for hours. Heat thins the liquid, raises internal pressure and is the single most common cause of a pod that was fine yesterday and leaks today.
Finally, keep spare pods out of reach of children and pets. Nicotine e-liquid is poisonous if swallowed or if it gets onto skin in quantity, and a pod is small enough to be a hazard in its own right.
Let us be clear about this one: the replacement pod has no battery. All the power comes from the Hayati Pro Max Plus 4000 device it clicks into. That means the question people usually ask, how long it lasts on a charge, depends on the device battery and on how you vape, not on the pod.
We are not going to quote an exact milliamp-hour figure for the device here, because the manufacturer's packaging and manual carry the verified number and it is better to point you there than to guess. What can be said is that rechargeable pod devices in this class generally use a small lithium-ion cell, often somewhere in the region of a few hundred to around a thousand mAh, charged over USB-C. A typical user vaping through the day tops up roughly every day or two. A single charge will often outlast a pod for light users, while a heavy user may need to charge more than once during one pod's life.
Good charging habits protect both the battery and your safety:
Charging also interacts with the pod. A device that is almost flat can deliver weak, inconsistent power, which gives thin vapour and a slightly harsh taste even from a good pod. If you notice that a fresh pod suddenly seems weak, check the battery before blaming the liquid. Equally, a very hot device straight off the charger should be left to cool before you use it.
When the device finally wears out, the lithium-ion cell inside must not go in your normal household bin. UK retailers that sell vapes are required to offer take-back for waste electricals, and local recycling centres and many supermarkets also have vape drop-off points. Used pods can usually go the same route.
Hayati pods in this range use a mesh-style coil. Instead of a wire wound into a spiral, a mesh coil uses a thin sheet of metal with a pattern of tiny holes, pressed against or wrapped around the cotton wick. The practical differences are real, and they explain why mesh has become the default choice for modern pre-filled pods.
The coil is sealed inside the pod. You cannot change it separately and you cannot adjust its resistance, because the manufacturer sets it to suit the device output. That is what keeps the experience simple, and it is also why a pod that develops a fault is replaced whole rather than repaired.
The wick is the quiet partner of the coil. The cotton has to draw liquid in at the same rate the coil uses it. If you pull too hard and too often, the wick cannot keep up, the cotton dries and you get a dry or burnt hit. If you fit a brand new pod and take a big draw straight away, the wick may not be saturated yet and you will taste cooked cotton on the first few puffs. This is the reason every set of instructions tells you to wait a few minutes after fitting. It is not a formality. It is physics.
Mesh coils also age. Over the life of a pod, residue from sweeteners builds up on the mesh surface and slowly reduces how cleanly the liquid vaporises. That is one reason a flavour that tasted vivid on day one can seem flatter by day four or five. Taking breaks between puffs lets the wick re-saturate and keeps the mesh cooler, which slows the process. When a pod tastes consistently muted despite a charged battery, the sensible answer is a fresh pod, not harder draws.
Nicotine strength is the decision with the biggest effect on whether you enjoy this product and whether it actually helps you. UK law caps nicotine e-liquid at 20mg/ml, which is 2%, and that ceiling applies to pre-filled pods as well as bottles. Pods in this range use nicotine salts, which deliver nicotine more smoothly than traditional freebase liquid at the same strength. That is why a strength that might feel harsh in an older style of liquid can be comfortable here.
A sensible starting guide:
Pick from the strengths shown in the variant selector on this page. If only one strength is listed, that is what is currently available.
How do you know you chose wrongly? If you feel dizzy, nauseous or lightheaded, get a pounding heartbeat, or find the throat hit uncomfortably harsh, the strength is too high for you. Put the device down, drink some water and give it time. If, on the other hand, you keep reaching for a cigarette after a day or two, or you find yourself puffing constantly without feeling satisfied, the strength may be too low. Both outcomes are common in the first week and are easily corrected by changing strength on the next pod.
A few other points are worth remembering. Sweet flavours make high strengths easier to take in, which can lead to using more than you meant to, so judge the strength by how you feel rather than by how pleasant it tastes. Nicotine is addictive, and the aim for a smoker is usually to move away from cigarettes first and consider reducing nicotine later. If you are unsure, the NHS and local stop smoking services offer free support and can talk through the options with you.
This product has a narrow, clear audience, and being straightforward about it will save you money. It is a replacement part for one specific device, sold in one specific flavour.
It suits:
It is not a good fit for:
There are also people who should speak to a professional before using nicotine at all. If you are pregnant or breastfeeding, have a heart condition, high blood pressure or another health concern, talk to your GP or pharmacist first. If you take medication, ask whether nicotine could interact with it. Vaping is widely regarded as less harmful than smoking, but it is not risk-free, and the safest option for a non-smoker is not to use nicotine products.
One last group deserves a mention: smokers who have tried vapes before and given up on them. If your last attempt was a weak, harsh or leaky product, a well-seated pod with a mesh coil and nic salt may feel quite different. It is worth a short, honest trial, provided you commit to swapping rather than smoking while you test it.
Fitting a replacement pod takes under a minute. Follow the steps in order and you will avoid the leaks and dry hits that most complaints trace back to.
Whether your device fires automatically when you draw or needs a button press depends on the model, so follow the manual that came with your Pro Max Plus 4000 for that detail. Either way, the technique is the same: a slow, steady draw of two to three seconds, then a pause.
A few usage rules keep the experience pleasant. Do not draw with the device tilted or upside down, because it can pull liquid into the airway and give you a mouthful of e-liquid. Do not drain the battery to nothing while a pod is mid-life, because weak power makes the coil work harder for less vapour. Do not hold the device against your body in a very warm pocket for long periods. Do not use it while driving in a way that distracts you.
Finally, think about where you vape. Many public places, workplaces, trains and venues have their own rules on vaping, and some hospitals and schools ban it entirely. Check the rules where you are, be considerate of people nearby and never vape around children or in a car with children in it.
When a pod is finished, do not just throw it in the household bin. The used pod contains residual nicotine liquid and a small coil, and it counts as waste electrical material in many local schemes. Take it to a vape recycling drop-off point, which many vape shops, supermarkets and council recycling centres now provide.
Most problems with pre-filled pods are small and fixable. Work through the list below before deciding a pod is faulty.
A simple way to isolate a problem is to change one thing at a time. Swap the pod, and if the issue goes away, the pod was at fault. If it stays, charge the device, clean the contacts and try again. If a second pod behaves the same way, the device is the likely culprit and it is worth contacting the retailer or the manufacturer under the warranty terms that came with it.
Never try to repair a device with a swollen, hot or damaged battery. Stop using it, keep it away from flammable surfaces and take it to a recycling point.
Value is easier to judge with a little arithmetic than with a slogan. The most useful number is cost per day, not cost per pod. Divide the price of the pod by the number of days it lasts you. If a pod lasts you four days, you are paying a quarter of its price per day. If it lasts two days, you are paying half. Your own usage decides the answer, which is why the 4000-puff rating on the pack is a less reliable guide than a week of your own tracking.
Where this pod offers genuine value:
Where it is less competitive:
If you are comparing with smoking, the picture is usually clearer. A pack of cigarettes costs a significant amount in the UK, and many smokers who switch completely find their weekly spend falls even after buying pods and the occasional charger. That is a sensible reason to try vaping, though it only works as a saving if you genuinely stop smoking rather than doing both.
A practical tip: keep one spare pod in reserve so you never run out mid-week and fall back to a cigarette out of convenience. Running out is the single biggest risk to a smoker's attempt to switch, and the cost of a spare is small compared with the cost of a relapse. Equally, avoid stockpiling too many pods of one flavour before you know you like it. Liquid is perishable, flavours fade over many months and heat in storage shortens shelf life.
A fair comparison starts with what category this pod belongs to. It is a closed, pre-filled pod for a single device. The alternatives fall into three groups, and each has real strengths.
Where this pod does well is in staying inside its lane. If you already own the Pro Max Plus 4000 and enjoy a sweet blue fruit profile, buying the matching pod is the straightforward choice. Where it falls behind is flexibility. If you want to experiment widely with flavours or keep running costs as low as possible, a refillable setup will serve you better.
It also helps to understand the UK rules that shape what you are buying:
None of this makes vaping risk-free, and none of it makes a sweet flavour a good reason to start. For a smoker looking to switch, a closed pod with a mesh coil is a reasonable and low-effort option. For everyone else, the safest choice is not to begin.
| Brand | Hayati |
|---|---|
| Product type | Prefilled Pod / Refill |
| Nicotine strength | 10mg, 20mg |
| Available flavours | 1 (Mr Blue) |
| Price | £6.99 |
| Availability | In stock — same-day dispatch |
| Compliance | UK TPD-compliant, MHRA-registered |
Hayati has become one of the UK's most-asked-for vape brands on the back of the Pro Max and Pro Ultra Plus — big-puff kits that led the switch from true disposables into prefilled-pod devices. Flavour ranges stretch across 85+ profiles, from British classics like Blackcurrant Menthol to tropical blends built for all-day vaping.
UK law caps nicotine at 20mg/ml, which suits adults who smoke roughly ten or more cigarettes a day. If you smoke less or find 20mg too sharp, choose 10mg or lower from the strengths in the variant selector. Dizziness, nausea or a pounding heartbeat means the strength is too high for you.
The pod has no battery, so there is nothing to charge in it. You charge the Hayati Pro Max Plus 4000 device over USB-C using a standard 5V wall adapter or computer port. Avoid charging under pillows or leaving it unattended overnight.
You can switch to a different flavour of the same pod whenever you like, because each pod is self-contained. These pods are made for the Hayati Pro Max Plus 4000 and should not be assumed to fit other Hayati ranges or other brands. Always check the compatibility note before ordering.
The 4000-puff rating is a manufacturer guide, and UK pods are limited to 2ml, so real life is shorter. A moderate user will usually change a pod every few days, a light user may stretch to a week or more and a heavy user will go faster. Short, gentle draws help a pod last longer.
It costs less over time than buying a whole new device each time, and it creates far less waste. A refillable kit with nic salt bottles is usually cheaper per ml if you vape heavily, though it needs more effort. Track your cost per day over a week to see which suits you.
Mr Blue is a name-led blue-fruit flavour in the sweet candy family, usually described as blue berry and blue raspberry style notes. The manufacturer does not publish a full breakdown here, so check the product description and the pack for any cooling wording. If you want a clearly icy profile, choose a flavour that names ice or menthol.
They suit adult smokers and existing Pro Max Plus 4000 owners who like sweet blue fruit flavours. They are not for anyone under 18, people who have never smoked, anyone without the compatible device, or people who are pregnant or have a heart condition and have not spoken to their GP first.
Yes, orders go to UK addresses and you must be 18 or over, so expect an age check at checkout or on delivery. Delivery options and timings are shown at checkout. We do not ship these items outside the UK.
Faulty goods are covered by UK consumer law. Keep the pod and packaging, take a photo of the problem and contact the shop, and a replacement or refund can be arranged. For hygiene reasons, opened pods that are not faulty are generally not returnable, so check the store returns policy.
No, these are designed as pre-filled, single-fill pods. Opening them damages the seals, risks contaminating the coil and can cause leaks in your device. Replace the used pod and take the old one to a vape recycling drop-off point instead.
Royal Mail Tracked 24 (Next-Day): £1.99, FREE on orders over £20.
DPD Next Working Day: £3.99 (£2.99 over £20), FREE over £100.
Same-day dispatch on orders placed before 4pm Mon-Fri. See our delivery page for full details.
Really pleased with the order overall. Everything arrived as expected, well packed, fast dispatch.
Ordered Wednesday evening, arrived Thursday morning. Everything sealed, genuine, exactly what I expected.
Taste is proper — no chemical aftertaste or anything. Just clean flavour throughout. Love it.
Been looking for something like this for ages. Finally found a brand that doesn't disappoint.
Switched from a well-known brand and this is actually better, especially for the price. Will reorder.
Delivery was super fast and the product is genuine. I've had fakes before so this was a relief.
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