Hayati Pro Max 4000 UK: What happened to it, and everything you need in 2026

The Hayati Pro Max 4000 was a single-use disposable vape built for the international market. It ran on a non-rechargeable 1,500mAh battery, held 10ml of nic salt at 20mg, and claimed around 4,000 puffs before the whole device went in the bin. Mesh coil. Draw-activated. Roughly 35 flavours.

For a brief window, it was popular with UK vapers wanting a longer-lasting alternative to the standard 600-puff bar. The problem was that the 10ml tank put it well outside UK TPD limits, and the non-rechargeable battery made it a single-use device by definition. When the disposable ban came into force, the Pro Max 4000 came off shelves legally. Any retailer still listing it as of June 2025 was breaking the law.

The Hayati brand has since moved entirely to rechargeable formats. Everything currently stocked, from the Pro Max+ 6K to the Pro Ultra+ 25K and the bottled Hayati Pro Max nic salt, is fully UK-legal and MHRA-registered.

The UK's Tobacco and Related Products Regulations 2016 (TRPR) cap the e-liquid in any single prefilled pod or sealed tank at 2ml. That is the root of the ban. A 4,000-puff device physically cannot reach that count on 2ml. The Hayati Pro Max 4000 used a 10ml tank: five times the legal limit.

Separate from the capacity issue, the Disposable Vapes (Single-Use) Regulations came into force on 1 June 2025, making it illegal to sell any vaping device that cannot be refilled or have its battery recharged. The Pro Max 4000 failed on both counts.

Trading Standards officers began seizing stock from shops across the UK. The enforcement is ongoing. Some retailers are still listing the original product online, mostly in grey-market or cash-and-carry channels, but buying from those sources carries its own risks: no product safety checks, potential contaminated liquid, and a complete absence of MHRA registration.

None of this is unique to Hayati. The Randm Tornado 9000, Crystal Prime 7000, and Elux Legend 3500 were all pulled for the same reasons at the same time. Hayati happened to be ahead of the curve in having compliant prefilled pod kits ready before the ban dropped.

Nowhere. That is not a stock issue or a supplier problem. The Hayati Pro Max 4000 is illegal to sell in the UK and has been since 1 June 2025. Any listing you find online claiming to sell it is either a grey-market import (with no MHRA registration, no product safety checks, and no consumer rights if something goes wrong) or a mislabelled listing using the old product name to attract search traffic.

We checked the major UK vape retailers in June 2026. None of the legitimate ones stock it. The search results that look like product pages are almost all either cached pages from before the ban or marketing content using the name to rank for searches.

The practical answer to "where to buy the Hayati Pro Max 4000" is: buy the Hayati Pro Max+ 6K instead. It is the same brand, largely the same flavours, and a better device by most measures. It is also legal, MHRA-registered, and available now from VapeCity and most major UK vape retailers. The section below covers both legal replacements in detail.

Both devices work on the same principle. A small 2ml pod, within the legal limit, sits on top of a 10ml refill container that automatically tops it up as you vape. The pod itself is the legal unit; the refill just keeps it fed. When everything is empty, you drop in a new pod-and-refill set. The battery in the device recharges over USB-C and does not get replaced.

That auto-refill architecture is how they legally clear thousands of puffs: not by stuffing 10ml into a single sealed pod, but by chaining top-ups from a separate refill container. Both kits are MHRA-registered and TRPR-compliant, sold through licensed UK distributors.

The Hayati Pro Max+ 6K is the one-flavour kit: one pod, one refill, up to 6,000 puffs, with an LED screen showing battery and e-liquid levels. Sixty flavours. The Hayati Pro Ultra+ 25K holds two pods at once, each fed by their own refill, and you twist the mouthpiece to switch between flavours. Up to 25,000 puffs across the twin set. If the Pro Max 4000 was your everyday device, the 6K is its replacement. If you found yourself carrying two disposables to rotate flavours, the 25K does that job in a single device.

Once you own a kit, the running cost drops sharply: you only buy replacement pod sets rather than a whole new device each time.

Here is what changed, side by side. The jump in puff count from 4K to 6K is only part of it; the shift from a single-use disposable to a rechargeable kit is what actually matters for your wallet and for staying on the right side of UK law.

We checked ten UK retailers in June 2026. All prices are per kit including VAT, for the full kit (device plus first pod set). Where bulk deals exist, we have shown the per-unit price the deal works out to. Replacement Pro Max+ 6K pods are separate purchases not shown here.

VapeCity sits at the bottom of the table on price. The minimum order is a box of 5, which is the trade format, but at £6.80 per kit it undercuts every single-unit retail price by at least 19p and the most expensive retailers by over two quid.

The puff count headline only tells half the story. What matters is the cost per puff and how many devices or sets you burn through in a month. Below we have run the numbers for three usage levels: light (200 puffs/day), moderate (300 puffs/day, roughly equivalent to 15 cigarettes), and heavy (500 puffs/day).

All prices use VapeCity's per-unit cost: £6.80 for the Pro Max+ 6K and £6.40 per set for the Pro Ultra+ 25K. The old Pro Max 4000 column uses an estimated pre-ban price of £5.00 as a benchmark for anyone comparing to what they used to spend.

The Pro Max+ 6K and the original Pro Max 4000 share a large chunk of their flavour roster, so if you had a favourite in the 4000 you will almost certainly find it in the 6K. The Pro Ultra+ 25K pods carry 43 of the same flavours in their twin-set format.

The ranking below is compiled from UK retailer review pages, vaping forums, and flavour-ranking posts from 2025 to mid-2026. No paid placements, no manufacturer suggestions. If you want to explore the full 60-flavour list, the Hayati Pro Max+ 6K product page has them all.

We pulled honest feedback from UK review sites, vaping forums, and published tests of the Pro Max+ 6K and Pro Ultra+ 25K. These are sourced views, not curated marketing copy. Where reviewers called out negatives, we have included those too.

Three types of people are reading this. First: you used the Pro Max 4000 and want the nearest legal equivalent. Buy the Pro Max+ 6K. Same flavours, same tight MTL draw, similar size, and a screen that tells you how much liquid is left. It is the direct replacement, no adjustment period required.

Second: you were getting through more than one Pro Max 4000 per week and the budget adds up. The Pro Ultra+ 25K is worth a serious look. One twin set covers 83 days at a 300-puff-per-day rate. The upfront cost per set is actually lower than a 6K kit; the saving on subsequent 25K pod sets is significant. The catch is size: it is a bigger device, and you only get one flavour per side, though two at once.

Third: you already have a refillable pod kit and want the Hayati flavours without new hardware. The Hayati Pro Max nic salt comes in 49 flavours at 10ml for around £1.60 a bottle in a box of ten. Same liquid, any MTL device. Browse the full Hayati range to see all three options side by side.

One thing that applies to all three: buy through a licensed UK retailer. The grey-market listings of the original Pro Max 4000 are still out there, and some are counterfeit. The ECID/MHRA number on the packaging of the 6K and 25K can be verified against the MHRA register at gov.uk.