One of the most common questions those who are new to e-cigarettes have is “Which is better: kits or disposables?” We thought we’d shed some light on this aspect of e-cigs so all the facts are available up front.

Choosing Between Disposables and Re-Chargeable Electronic Cigarettes

The main thing to think about when choosing between an e-cigarette kit and disposables is what's more important to you: value or convenience. Kits, or re-chargeable e-cigs, offer amazing cost savings and versatility. Disposable ecigs are a quick and easy option that means you don't have to worry about charging and they require a much smaller initial investment. The blu™ Starter Kit aims to bring together the distinct advantages of both of these products.


On average, smokers can save anywhere between 57% and 82% by switching from cigarettes to blu e-cigs, but the amount saved varies between blu e-cig kits and blu disposable e-cigs. Here’s how:

Cost Comparison of E-Cigarette Kits vs. Disposable E-Cigs
Tobacco cigarettes blu cartridge refills blu disposables

Average cost of a pack of 20 cigarettes in the UK:


(Based on 25 top-selling brands as published on in April 2014.)

Cost per blu cartridge refill:

£5.99 ÷ 3 = £1.99

(Based on 3 blu cartridge refills per pack with maximum multi-buy discount.)

Cost of a single blu disposable:


Average number of cigarettes consumed per day by smokers in the UK:


(Based on survey published July 2012.)

Cigarette equivalency per blu cartridge refill:

Approximately 30 cigarettes on average

(According to manufacturer-tested specifications based on factory "machine puff test" results.)

Cigarette equivalency per blu disposable:

Approximately 40 cigarettes on average

(According to manufacturer-tested specifications based on factory "machine puff test" results.)

Average cost per cigarette:

£7.71 ÷ 20 cigarettes = £0.39

Single cigarette equivalency cost of a blu cartridge:

£1.99 ÷ 30 = £0.07

Single cigarette equivalency cost of a blu disposable:

£5.99 ÷ 40 = £0.15

Average number of cigarettes consumed per month:
(365 days ÷ 12 months = 30.416 days/month):

13 cigarettes × 30.416 days = 395.41 cigarettes

Average monthly cost of cigarettes:

395.41 cigarettes × £0.39 =
£154.21 1

Average monthly cost of blu kits & cartridge refills:

395.41 cigarettes × £0.07 =
£27.68 2

Average monthly cost of blu disposable:

395.41 cigarettes × £0.15 =
£59.31 4

Average annual cost of smoking cigarettes:

£154.21 × 12 months = £1850.52 1

Average annual cost of blu kits & cartridge refills (after first year) 3 :

£27.68 × 12 months = £332.16 2

Average annual cost of blu disposable:

£59.31 × 12 months = £711.724

Cost Comparison Overview
blu kits & cartridge refills blu disposable Cigarettes
Per Year £332.16 2,3 £711.72 4 £1850.52 1
Per Month £27.68 2,3 £59.31 4 £154.21 1
Per Week £6.39 2,3 £13.69 4 £35.59 1
Per Day £0.91 2,3 £1.95 4 £5.07 1

1This figure represents an average only and does not include taxes or incidental cigarette smoking costs like lighters, ash trays, possible fines for smoking in prohibited areas, etc.
2This figure represents an average only and does not include taxes or incidental blu usage costs like extra batteries, adaptors, spare chargers, etc.
3The cost of blu kits & refills is slightly higher in the first year to account for the purchase of your kit; the additional cost depends on how many sample cartridges are included in your kit, which reduces the amount of cartridges needed in this calculation.
4This figure represents an average only and does not include taxes.

Advantages of E-Cigarette Kits

No matter which way you cut it, the cost of e-cigarette kits will always be lower than disposable e-cigs. This is because you pay for the convenience of a single-use product. While kits are a bit more of an investment up front, they do provide much better value in the long term.
Here are some other advantages of electronic cigarette kits compared with disposables:

  • More versatile and allow for easy switching between cartridge flavours and strengths.
  • More environmentally friendly as the battery is rechargeable and there is less product packaging waste.
  • Kits allow you to carry multiple cartridges, accessories and batteries together, so you always have back-ups ready in one compact case.
  • The blu Premium Kit allows you to charge on the go, so you can always have one battery charging whilst the other is in use – a distinct advantage as you don’t need to worry about finding a stockist to buy your next one if the battery runs out.
  • The battery and cartridge together (when fully assembled) is smaller than a disposable, meaning it more closely resembles a tobacco cigarette.
  • Available in a larger variety of flavours and nicotine strengths.
  • blu Kits

Advantages of Disposable E-Cigs

Single use or disposable e-cigarettes remain incredibly popular; as they are very easy to use and mimic tobacco cigs in the way they are bought and consumed. You simply buy, enjoy until finished, and then throw away. Here are some of the other advantages to using disposable e-cigs over kits:

  • Smaller package is easier to carry around.
  • Lasts longer than a standard battery and cartridge.
  • There’s no need to purchase or use chargers.
  • You can start using them immediately as they are found in many shops across the country.
  • blu Disposables

Using both a Kit and Disposables

Having both on hand and using a mix of the two products is an excellent way to let you to reap the benefits of both worlds, depending on your needs. Kits and disposables have different advantages in different situations; for example, you could use a kit at home or at work then use disposables on nights out, or during busy travel spells to avoid worrying about charging. Disposables are a quick pick up in shops or on the high street; just like cigarettes, you go into your local shop, grab a pack and you're ready to go. These are great for commuters and travellers who don't want the hassle of charging. Kits are ideal for long-term users who prefer the additional cost savings.

Similarities between Disposable and Re-Chargeable E-Cigarettes

Despite their differences in terms of advantages, as well as a few minor design differences, both disposable and re-chargeable e-cigs function in exactly the same way. Here’s a description of how both re-chargeable and disposable e-cigs work:

  • Top section/Mouthpiece - Cartridge with in-built vapouriser:
    The cartridge contains the “e-liquid”. Within this liquid are nicotine (NRG flavour is also available nicotine free) and Propylene Glycol ("PG"). In the bottom of the cartridge is a micro-vapouriser. When a user takes a draw, the vapouriser heats the liquid and mixes it with air to make the flavoured vapour. This then passes through a channel in the centre of the cartridge and out through the mouthpiece.
  • Bottom section/Tip - Battery:
    As a user takes a draw, a motion sensor within the battery detects the airflow and activates the vapouriser. Simultaneously, the LED at the end glows steadily as the user is drawing.

Differences between blu Disposable and Re-Chargeable E-Cigarettes

Re-Chargeables - blu Starter Kit & blu Premium Kit:
  • Two piece design - battery and cartridge unscrew from each other.
  • Smaller battery for easy carrying.
  • Re-chargeable battery for multiple uses.
  • Smaller cartridge refills for carrying in case.
  • Available in a variety of nicotine strengths.
Single-use – blu Disposables:
  • One piece design - does not unscrew.
  • Single use battery - does not recharge.
  • Larger battery that lasts longer for a single use.
  • Larger cartridge section with more liquid contained.
  • Only available in 18mg nicotine strength, and 0mg (NRG disposable).
  • Available in limited flavours.

blu Disposable E-Cigs

blu disposable electronic cigarettes are available on this website or in our retail locations across the UK; use our stockist locator to find a shop selling blu disposables near you. We cannot guarantee that all stockists will carry blu disposables, so we recommend checking with the stockist to make sure they have them in stock before travelling to the shop. Details for what some of our stockists have available can be found by clicking on the pins on the map to display shop details. If information is available on which lines they stock, it will be available here.