Walk into any vape shop in the UK right now and you’ll find Lost Mary prominently displayed near the counter. That’s not an accident. Since Elfbar launched the sub-brand a few years back, Lost Mary has carved out a reputation for compact form factors, genuinely accurate flavour reproduction, and consistent draw quality — three things that disposable vape buyers tend to care about most.
But the range has expanded considerably, and in 2026 there are enough models to cause real confusion. The BM600, QM600, MO5000, OS5000, and the newer Tappo series all sit under the Lost Mary umbrella, each aimed at a slightly different buyer. Some are fully UK-TPD compliant and easy to find in legitimate UK stockists. Others sit in a greyer area — higher puff counts that technically exceed 2ml tank capacity limits and therefore aren’t legally sold as single-use products in the UK without a workaround.
This ranking covers the models that matter most to UK buyers in 2026, scored across flavour range, puff capacity, battery performance, nicotine options, and value for money. Compliance status is flagged clearly for each.
1. Lost Mary BM600 — Best for Everyday Carry
Puff count: up to 600 | Nicotine: 20mg nic salt | Battery: 550mAh (non-rechargeable) | Compliance: Fully TPD-compliant
The BM600 is probably what most people picture when they think of Lost Mary. It’s small enough to disappear into a jacket pocket, runs on a 550mAh battery that lasts the full 600 puffs without throttling, and delivers the kind of tight MTL draw that ex-smokers find most satisfying.
What keeps it at the top of this list isn’t novelty — it’s reliability. The flavour range runs to over 30 options, and Lost Mary’s quality control tends to be noticeably more consistent than some competitors at this price point. You’ll rarely crack open a BM600 and find the flavour tastes nothing like the label. The Blue Razz Ice and Blueberry Ice variants in particular have become go-to choices for vapers who want something clean and repeatable.
At 20mg nicotine across the board, this suits moderate to heavy smokers making the switch. If you’re already well into your vaping journey and find 20mg too strong, there are fewer options here — Lost Mary keeps nicotine choices simpler than some rival brands. Understanding how nicotine strengths work in disposables can help you decide whether that’s a dealbreaker; our guide on nic salt nicotine strengths explained for UK vapers breaks it down clearly.
Price range: £4–£6 per unit from reputable UK stockists.
2. Lost Mary QM600 — Best Flavour Variety at Entry Level
Puff count: up to 600 | Nicotine: 20mg nic salt | Battery: 500mAh (non-rechargeable) | Compliance: Fully TPD-compliant
The QM600 is Lost Mary’s attempt to push the flavour-forward angle even harder than the BM600. In terms of puff count and nicotine, they’re identical, but the QM600 uses a slightly different coil configuration that some vapers claim produces a warmer, slightly denser vapour — though the difference is subtle and you’d need to test both back to back to notice it.
Where the QM600 actually pulls ahead is flavour selection. At the time of writing in mid-2026, Lost Mary offers a wider array of QM600 options in the UK than BM600, including some tropical and citrus blends that BM600 doesn’t stock. Mango and Passion Fruit Ice has been a consistent seller in this line, and the double apple variant holds up well against a crowded field of competitors doing similar things.
The shorter battery life (500mAh vs 550mAh on the BM600) is the only meaningful drawback. In practice, most users won’t exhaust either one in a single day, so it’s a paper difference for the majority of buyers.
Price range: £4–£6 per unit.
3. Lost Mary MO5000 — Best for High-Volume Vapers
Puff count: up to 5000 | Nicotine: 20mg or 50mg (US versions — see compliance note) | Battery: 500mAh rechargeable (USB-C) | Compliance: Not TPD-compliant as a standard disposable in the UK — sold as part of a refillable pod system or not legally available in standard disposable format
This is where it gets complicated. The MO5000 is widely referenced on UK vaping forums and shows up in searches regularly, which makes it worth addressing directly. In the United States and some other markets, the MO5000 is sold as a single-use disposable with a 13.5ml e-liquid capacity. That configuration is illegal to sell as a disposable in the UK under TPD rules, which cap e-liquid tanks at 2ml.
UK sellers sometimes market an MO5000-adjacent product as part of a refillable pod kit — where the device body is reusable and pods are sold separately in compliant 2ml or 10ml bottle formats. If you see an MO5000 advertised at an unusually low price as a simple disposable in the UK, that’s worth questioning. It’s either a grey-market import or mislabelled stock.
That said, the MO5000 hardware itself is excellent. The 500mAh rechargeable battery via USB-C, the mesh coil, and the dual-mode airflow (MTL or restricted DTL depending on how you set the airflow ring) make it genuinely versatile. If you can access it through a compliant route, it’s a strong choice. If you’re considering similar high-capacity options from other brands, it’s worth reading how disposable vape puff counts compare across the UK market before committing.
Price range: Variable and often suspicious in the UK disposable market. Approach with caution.
4. Lost Mary OS5000 — Best Rechargeable Option for UK Buyers
Puff count: Up to 5000 (in US format) / compliant variants available via pod system | Battery: 650mAh rechargeable (USB-C) | Nicotine: 20mg in compliant UK versions | Compliance: Same caveats as MO5000 — not sold as a standard UK disposable legally
The OS5000 is frequently compared to the MO5000, and the main hardware difference is the larger 650mAh battery and a slightly more rounded ergonomic shape. Draw-wise, the OS5000 leans toward MTL more naturally than the MO5000, which may explain why it’s the more popular of the two among UK vapers who’ve managed to access it.
And there’s the same compliance caveat. In the UK, you’re not going to find a legitimate OS5000 marketed as a disposable vape on the shelf at a reputable retailer. What you might find is the OS5000 device sold as a rechargeable pod system with separately purchased pods — which can be a legitimate setup depending on how the retailer has structured the product listing.
If you’re primarily interested in a rechargeable setup anyway, it may be worth comparing this against purpose-built pod kits from brands like Oxva, Voopoo, and Aspire, which are designed from the ground up for the UK market. Our pod vape kit buying guide for the UK covers this territory in more detail.
Price range: When available legitimately, £15–£25 depending on the retailer and pod configuration.
5. Lost Mary Tappo — Best System for Long-Term Lost Mary Users
Device type: Refillable pod system | Battery: 750mAh rechargeable | Pod capacity: 2ml (TPD-compliant) | Compliance: Fully UK-legal
The Tappo is Lost Mary’s answer to the obvious problem: UK regulations make the high-puff disposable format largely unavailable, so they built a proper pod system instead. The Tappo device costs around £10–£15, and replacement Tappo pods are sold separately in standard 2ml nic salt format.
This is the legitimate long-game option for Lost Mary fans in the UK. You keep the flavours and brand you trust, you reduce per-day cost significantly versus buying individual BM600 or QM600 units, and you end up with far less device waste. The Tappo’s battery life at 750mAh is notably stronger than the BM600 or QM600, and charging via USB-C is fast enough that you can top it up during lunch and run it through the evening without anxiety.
Flavour quality through the Tappo pods tracks closely with the BM600 line, which makes sense — they’re drawing from the same flavour development side of the business. Strawberry Ice and Watermelon Cherry in Tappo format have been well-received.
The honest limitation: the Tappo system does require a small upfront device investment, and new users sometimes find the pod replacement process fiddly compared to just opening a new disposable. But for anyone vaping regularly, the economics make sense within a few weeks.
Price range: Device at £10–£15; pods at £3–£5 per 2ml pod.
6. Lost Mary 3500 (AM600 Series) — For Dual-Mode Vapers
Puff count: Up to 3500 | Battery: 1000mAh rechargeable | Nicotine: 20mg nic salt | Compliance: Note — 3500 puffs suggests e-liquid capacity above 2ml; UK compliance depends on how the retailer structures the sale
The AM600 / 3500 series sits awkwardly in the UK market. The hardware is among Lost Mary’s best — a 1000mAh rechargeable battery is genuinely substantial, and the dual airflow setup gives you real flexibility between tighter and more open draws. But the 3500 puff rating immediately raises questions about e-liquid capacity under UK TPD rules.
Some UK retailers sell this as a compliant refillable device with separately purchased e-liquid, effectively treating it as a pod kit with a prefilled pod for initial use. Others simply import and sell it in grey-market fashion. Buyers should verify compliance before purchasing.
If you’re comparing this kind of setup against other brands operating in the same “high capacity, rechargeable” space, the IVG Bar vs Elf Bar vs Hayati comparison shows how the broader disposable market is navigating similar regulatory pressures.
UK Compliance: What You Actually Need to Know
UK vaping regulations under the Tobacco and Related Products Regulations 2016 (which implements the EU TPD) cap e-liquid tanks at 2ml and nicotine-containing e-liquid bottles at 10ml. Any disposable vape exceeding 2ml of e-liquid capacity cannot be legally sold as a disposable in the UK.
The BM600 and QM600 are the only Lost Mary models fully and straightforwardly compliant in standard UK disposable format. The Tappo system is compliant as a refillable pod device. Any Lost Mary product advertising thousands of puffs should be verified carefully — either it’s operating as a pod system with compliant pods, or it’s a grey-market product.
Buying from established UK retailers matters here. Vapesguide sources all products directly from authorised brand channels, which means the compliance burden falls on the supply chain rather than the individual buyer. That’s not true of every online seller in this space.
Which Lost Mary Should You Buy in the UK?
For most UK buyers in 2026, the BM600 remains the default choice — it’s compliant, widely available, well-priced, and offers enough flavour variety to stay interesting. If flavour selection is your main priority at the 600-puff level, try the QM600 alongside it and see which coil configuration suits your preference.
For regular vapers who’ve been through dozens of BM600s and want to reduce spend and waste, the Tappo system is the logical next step. It’s the Lost Mary product built specifically for the UK market’s regulatory reality, and it shows.
The higher-capacity models are worth tracking, but they require more care in verifying where you’re buying from and what compliance framework the retailer is operating under. That’s true of any brand pushing beyond the 600-puff format in the UK — Lost Mary included.
