Refillable pod kits vs big puff kits: the cost comparison
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- The difference is the base price per ml, not the tax. Bottled e-liquid is sold by the 10ml and the 100ml; prefilled pods are 2ml units, so the same liquid arrives in five times as many packages.
- A typical pod-kit vaper uses about 10ml to 15ml a week. That is one 10ml bottle every three to seven days on a refillable kit, or five to eight 2ml prefilled pods for the same volume.
- Over a year that is 52 to 78 bottles, or four to seven 100ml shortfills with shots. The difference in what you pay sits in the packaging around each millilitre.
- Big puff kits still make financial sense for occasional use, where bulk liquid would go stale before you got through it.
- Puff ratings are not a volume. Count bottles times 10 and prefilled pods times 2, and compare the two in millilitres.
The hardware is not the variable
A big puff kit is not a single-use device. Single-use disposable vapes have been banned from sale in the UK since 1 June 2025, and what replaced them is a rechargeable body with a prefilled 2ml pod, sold with a rated puff count and a strength. Kits like the Lost Mary BM6000 (1000mAh, one prefilled 2ml pod, rated 6,000 puffs, 20mg), the Hayati Pro Max 6000 (prefilled 2ml pod, rated 6,000 puffs, 20mg) and the Crystal Bling Max 8000 (prefilled 2ml pod, rated 8,000 puffs, 20mg) all follow that pattern. A refillable pod kit such as the Vaporesso Xros 5 Mini or the Oxva Xlim Pro 2 takes an empty pod you fill from a bottle instead.
On both routes you buy a rechargeable device once and keep it, so the cost question is entirely about how you buy the liquid that goes through it. Convenience, flavour range and the finer points of each format are covered in our refillable versus prefilled pods head-to-head; this page sticks to the money.
Put both on the same yardstick: millilitres
Comparing a bottle to a prefilled kit only works if both are measured in the same unit, and that unit is millilitres. Bottled liquid is sold by volume. A nicotine-containing pod is capped at 2ml by UK law, so every prefilled pod is a 2ml unit of liquid.
Puff ratings are manufacturer estimates from laboratory testing, so this page does not convert puff ratings into millilitres. It compares the volume you buy, the duty on that volume, and the number of packaged units it arrives in.
10ml to 15ml
typical weekly liquid use on a pod kit
2ml
legal maximum for a nicotine pod, so every prefilled pod is a 2ml unit
£2.64
duty plus VAT per 10ml of liquid from 1 October 2026
Consumption figures are typical, not universal. A higher-power device, longer draws and chain vaping all push the weekly volume up.
How Vaping Products Duty is worked out
From 1 October 2026, Vaping Products Duty is charged at £2.20 per 10ml of liquid plus VAT, which is £2.64 once VAT is added. It applies to every vaping liquid, including 0mg shortfills and nic shots. It is collected from manufacturers and importers rather than at the checkout, so what you will see is a higher shelf price per bottle and per pod rather than a separate line on the receipt.
Because it is charged on volume, the liquid figures on this page are the ones the duty attaches to, and the cost story underneath the duty is what the rest of the page is about: the base price of a millilitre of liquid, and how much packaging you pay for around it.
| What you buy | Liquid | Duty + VAT | Packaged units |
|---|---|---|---|
| One 10ml bottle | 10ml | £2.64 | 1 bottle |
| Ten 10ml bottles | 100ml | £26.40 | 10 bottles |
| 50ml shortfill + 1 nic shot | 60ml | £15.84 | 2 bottles |
| 100ml shortfill + 2 nic shots | 120ml | £31.68 | 3 bottles |
| Prefilled 2ml pods, 10ml worth | 10ml | £2.64 | 5 pods |
Tax only. Full detail in our guide to the new vape tax.
So where does the cost difference come from?
The gap sits in the base cost per millilitre before any tax is applied, and that is set by how the liquid is packaged.
A prefilled pod is a sealed 2ml unit of liquid with a coil, a mouthpiece, a housing, a blister pack and a carton around it. UK law caps nicotine-containing pods and tanks at 2ml, so that is the largest single unit of liquid a prefilled pod can ever be. Every one of those units carries its own share of manufacturing, packaging and distribution.
A 10ml bottle is five times that volume of liquid in one cheap plastic bottle with one cap. A 100ml shortfill is fifty times the volume in a slightly bigger bottle. The liquid inside may well be comparable. What differs is everything wrapped around it, and that is why the per-ml price of bottled liquid sits well below the per-ml price of the same liquid in pods.
Refillable, per week
One to one and a half 10ml bottles. A replacement pod or coil every one to three weeks, so a fraction of one per week.
Big puff, per week
The same 10ml to 15ml of liquid as five to eight individually packaged 2ml pods, each bought at the pod price rather than the bottle price.
A year of vaping, line by line
Take the typical user again, at 10ml to 15ml a week. This is what each route puts on your shopping list over a year to cover it.
| Over one year | Refillable pod kit | Big puff prefilled kit |
|---|---|---|
| Hardware | One kit, kept | One kit, kept |
| Liquid bought as | 52 to 78 x 10ml, or four to seven 100ml shortfills with shots | The same volume as 2ml prefilled pods, five per 10ml |
| Other consumables | A replacement pod or coil every one to three weeks | None, the coil comes in the pod |
| Duty on the liquid | £2.64 per 10ml | £2.64 per 10ml |
| Where the gap sits | Base price per ml, bottled | Base price per ml, sealed in pods |
The line to look at is the second one. For the same volume of liquid, one route delivers it in bottles and the other delivers it in five times as many individually packaged 2ml units. That packaging difference is the entire cost story, and it is why refilling works out cheaper for anyone vaping daily.
The consumables line partly offsets it. Refillable pods are a real, recurring cost that prefilled users do not have, and a heavy sweetener habit will chew through them faster. But a four pack of Caliburn G3 pods or a three pack of Xlim V3 pods covers a couple of months, which is a much smaller line than a prefilled pod for every 2ml.
Work out your own number in four steps
- 1
Count what you get through now. Bottles a week if you refill, kits or pods a week if you do not. Be honest, count a full month and divide by four.
- 2
Turn it into millilitres. Bottles times 10, prefilled pods times 2, and count nic shots as 10ml each. Now both sides are in the same unit.
- 3
Price 60ml both ways. Six 10ml bottles or one 50ml shortfill with a nic shot on one side, thirty 2ml prefilled pods on the other. Add the replacement pod or coil you would use up in that time on the refillable side.
- 4
Scale it to a year. At 10ml to 15ml a week, 60ml lasts four to six weeks, so it repeats nine to thirteen times a year. Whatever difference you found in step three, multiply it by that number.
When a big puff kit is the cheaper choice
There is a genuine cost case, and it is about volume.
You vape occasionally. If you use a few millilitres a week rather than ten, bottled liquid stops being an economy. A 100ml shortfill would take you most of a year to finish and flavour degrades over time, as our guide to e-liquid shelf life explains. A prefilled kit bought as and when you need it has no liquid sitting around going stale.
You are still deciding. If you have not settled on a strength or a draw style, there is no sense committing to bulk liquid and a pod stock for a device you might replace in a month. Buy small until you know.
Whether you would actually refill, and what each format is like to live with, is a different question from cost, and it is the one our head-to-head comparison answers.
The duty dates
Vaping Products Duty applies from 1 October 2026, and pre-duty stock can be sold until 31 March 2027.
If you are pricing the two routes across that period, check whether each listing is old stock or new stock before it goes in the sum. Comparing a bottle at one rate with a pod at the other will tell you about the changeover, not about the formats. The cleanest method is to price both sides on the same day from the same shelf.
If you are weighing up the hardware side rather than the consumables, our piece on the everyday benefits of a rechargeable vape covers battery life, charging and strength control rather than pounds and pence.
Refillable or prefilled
Work out your route, then buy the format that fits it
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Quick answers
Which is cheaper overall, refillable or big puff?
For daily use, refillable: you buy the same amount of liquid in a far cheaper format. The exception is occasional use, covered in the section on when big puff kits make sense.
Will the vape tax hit prefilled pods harder than bottles?
No. Vaping Products Duty is £2.20 per 10ml plus VAT on liquid volume, wherever that liquid sits. The same amount of vaping carries the same duty in both formats.
How many puffs does a 10ml bottle give me?
Roughly 600 to 1,500 puffs depending on device power and draw length, which is why this page compares millilitres rather than puffs. A higher-power device and longer draws get through a bottle faster.
Do I have to buy replacement pods on a refillable kit?
Yes, that is the recurring cost on the refillable side. Expect a fresh pod or coil every one to three weeks depending on the liquid. It is still a much smaller line than buying sealed prefilled pods for every millilitre.
How do I count a shortfill in the millilitre sum?
A 50ml shortfill with one 10ml nic shot is 60ml of finished liquid; a 100ml with two shots is 120ml. Count the shots, because they are liquid you paid for, and price the shots in with the bottle rather than treating them as an extra.
