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RELX HERC 12000 vs IGET Bar 3500: Why Puff Count Changed Everything

By ONEWING GROUP LIMITED · Updated 2026 · Reading time: 8 min

This is not a grudge match — the IGET Bar 3500 earned its legend honestly, and this comparison respects it. The question is different: what did the capacity race actually change, and which device serves 2026’s user better? One device started the modern format; the other is what the format became.

The respect paragraph

When the IGET Bar launched, it solved the ergonomic problem of the entire category: flat, light (78g), pocketable, with a 1.2Ω mesh coil, a properly tuned MTL draw, and — the engineering signature that matters most — a 1,500mAh battery honestly matched to its 12ml reservoir. No charging port, no stranded liquid, no display needed because the maths guaranteed the battery outlived the liquid. Half the industry copied the shape. It was, and remains, a well-made device.

What the capacity class changed

Between the Bar’s era and 2026, the market answered a question users were asking: “why am I buying a new device every week?” The 12,000-puff class moved the purchase cycle from weekly to monthly-plus. The knock-on effects define this comparison:

Value restructured. Fixed costs — battery, body, packaging — amortise across three times the liquid. Cost per millilitre drops sharply; our value rankings cover the arithmetic.

State visibility became necessary. At 12ml, a user could estimate remaining life by weight and behaviour. At 18ml over weeks, estimation fails — and “is it empty or broken?” became the class’s defining complaint. Displays evolved from luxury to load-bearing.

Engineering margins tightened. Matching a battery to 12ml is a solved problem; matching one to 18ml while staying charge-free, holding output flat across 10,000+ puffs, and keeping flavour stable in a reservoir that sits for a month — that is genuinely harder engineering.

Head to head: the six rounds

Capacity and value: 18ml versus 12ml is not close — the HERC carries 50% more liquid and amortises its fixed costs further. Round: HERC.

Autonomy: Both are charge-free with battery-to-liquid matching — the Bar’s signature philosophy, scaled up in the HERC’s 2,600mAh cell. The HERC simply delivers more total days per device. Round: HERC, on volume.

Draw and flavour: The Bar’s MTL tuning was excellent for its era; the HERC’s factory-tuned draw with constant power output holds flavour flat across a far longer device life — and longevity of flavour is where long devices are won and lost. Round: HERC.

State visibility: The Bar has no display and never needed one; the HERC’s side display (liquid + battery) answers the question the Bar’s capacity class never raised. Round: HERC — but note the fair reading: the Bar earned its era’s brief as completely as the HERC earns this one.

Pocket presence: The Bar is smaller and lighter (78g versus a bigger device with a 2,600mAh cell and aluminium shell). If “smallest possible” is the brief, the Bar still wins it. Round: Bar.

Build: PC-and-aluminium composite versus full aluminium shell. Round: HERC — see our build rankings.

The honest verdict

Five rounds to one, but the score is not the story. The story is that the Bar asked the right question in 2023 — what does a disposable owe its user? — and answered it for its capacity class. The HERC asks the 2026 version of the same question — what does a three-week device owe its user? — and answers with visible state, charge-free autonomy, and flat output. For a buyer today choosing one device, the HERC is the better purchase by every measure except pocket minimalism. For the industry, the Bar is the more important device — it is the reason the HERC exists in this shape at all.

Specifications Compared

Frequently Asked Questions

Is the RELX HERC better than the IGET Bar 3500?

For most 2026 buyers, yes: 50% more liquid, comparable charge-free autonomy scaled up, visible liquid and battery state, and a metal body. The Bar retains the edge only in absolute pocket size.

Why did disposable vapes get so big?

Because users were re-buying small devices weekly. The high-capacity class moved the purchase cycle to a month or more, amortised fixed costs across more liquid, and forced displays to become standard as estimating remaining life by feel stopped working.

Do both devices need charging?

No - both are charge-free with batteries matched to outlast their liquid. That shared philosophy is the Bar’s legacy, carried into the high-capacity class by designs like the HERC.

Which lasts longer, 3500 puffs or 12000?

The arithmetic is roughly 3.4:1 in rated count - weeks versus months of moderate use. Our longevity guide converts both into real-world weeks by usage rate.