{"id":2113,"date":"2026-05-10T08:09:24","date_gmt":"2026-05-10T08:09:24","guid":{"rendered":"https:\/\/24hoursvape.com\/?post_type=product&p=2113"},"modified":"2026-09-12T18:04:46","modified_gmt":"2026-09-12T18:04:46","slug":"uro-crystal-12k-puffs","status":"publish","type":"product","link":"https:\/\/24hoursvape.es\/es\/product\/uro-crystal-12k-puffs\/","title":{"rendered":"URO Crystal 12K Puffs"},"content":{"rendered":"
\n

Two weeks with the URO Crystal 12K, and what this page covers<\/h2>\n

I have spent the last two weeks carrying an 18 ml disposable in a jacket pocket, and the first honest thing I can say about the URO Crystal 12K is that it is a pocketful rather than a pen. What follows is written from that fortnight: the manufacturer figures that decide whether it suits you at all, an arithmetic estimate of how many draws 18 ml really gives instead of repeating the headline, a read through all twelve tap points, the two ways the coil behaves towards the end, and one box of trade facts at the very bottom for shops and resellers.<\/p>\n

One thing worth saying before the numbers. Our own listing and the market do not agree on how to spell the brand, so the model here is the URO Crystal 12K<\/strong>, sometimes written UOR, at 12,000 puffs, 18 ml, a 650 mAh cell and a 1.0 ohm coil. If you have been comparing listings and the names looked slightly different, that is why.<\/p>\n

The URO Crystal 12K at a glance, and what each figure changes for you<\/h2>\n

Nine rows, and the right-hand column is the one that matters. It is how the number in the middle behaves once the device is in a hand rather than on a specification sheet.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
What it is<\/th>\nWhat that means in the hand<\/th>\nHow sure we are<\/th>\n<\/tr>\n<\/thead>\n
18 ml reservoir<\/strong><\/td>\nThe reason the device is this long. Refilling is not part of owning it, so the liquid has to last from the first draw to the last.<\/td>\nStated on our listing<\/td>\n<\/tr>\n
650 mAh rechargeable cell, Type-C port<\/strong><\/td>\nA top-up partway through the reservoir is normal, not a fault. The cell will need charging several times across the life of the liquid.<\/td>\nStated on our listing<\/td>\n<\/tr>\n
Four mesh coil, 1.0 ohm<\/strong><\/td>\nFour heated mesh sections share the work, so no single patch runs hottest. The payoff is meant to be steadier taste late in the reservoir.<\/td>\nManufacturer figure, not independently tested here<\/td>\n<\/tr>\n
2 % and 5 % strengths<\/strong><\/td>\nTwo separate variants, not a dial. Your choice is fixed when the device is made, so it has to be settled before you order.<\/td>\nStated on our listing and confirmed by the variant list<\/td>\n<\/tr>\n
12 sabores<\/strong><\/td>\nEleven fruit blends and one cola. Nothing dessert, nothing tobacco, nothing menthol-only, so the range is narrower than the count suggests.<\/td>\nConfirmed by the shop’s own variant list<\/td>\n<\/tr>\n
Approximately 85 g<\/strong><\/td>\nHeavier than a small bar but still light enough to forget in a shirt pocket. The weight is mostly liquid and cell.<\/td>\nStated on our listing<\/td>\n<\/tr>\n
12,000 inhalaciones<\/strong><\/td>\nA short-draw laboratory rating, not a promise. The next section turns it into ordinary use.<\/td>\nManufacturer figure<\/td>\n<\/tr>\n
Illuminated draw<\/strong><\/td>\nThe body lights up when you draw. Our listing does not say what any particular colour means, and neither did anything we could find.<\/td>\nPublished gap<\/td>\n<\/tr>\n
Box of 10, carton of 200<\/strong><\/td>\nA single order is one device; the display box is the retail unit. Details are in the trade block at the foot of the page.<\/td>\nStated on our listing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

How to read the figures on this page<\/h3>\n

Everything in the table above comes from our own listing, which is why the right-hand column can say where each row came from. The rows marked as manufacturer figures are repeated as the manufacturer’s claims; they are not results we measured, and this page does not have the equipment to measure them.<\/p>\n

What the 12,000 figure actually buys you in ordinary use<\/h2>\n

The rating assumes a short, shallow draw. Count your own draws and you will get a very different number, and that is normal for every device in this class rather than a fault in this one. The way to estimate it honestly is to start from the liquid rather than from the marketing number, because 18 ml is the part that can be measured.<\/p>\n

Published consumption figures for mouth-to-lung draws sit at 0.003 to 0.004 ml per draw. The same sources put long, open draws at 0.007 to 0.015 ml, roughly four times as much liquid moved per breath. Applied to this device’s reservoir:<\/p>\n\n\n\n\n\n\n\n
How you draw<\/th>\nDraws from 18 ml<\/th>\nWhat that looks like over a fortnight<\/th>\n<\/tr>\n<\/thead>\n
Short mouth-to-lung draws<\/td>\nRoughly 4,500 to 6,000<\/td>\nAround 320 to 430 draws a day; the reservoir is still going at the end of two weeks<\/td>\n<\/tr>\n
Moderate mixed use<\/td>\nRoughly 3,600<\/td>\nAround 250 draws a day; expected to finish inside a fortnight<\/td>\n<\/tr>\n
Long, open draws<\/td>\nRoughly 1,200 to 2,600<\/td>\nAround 85 to 185 draws a day; finished in well under a week<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Here is the arithmetic that shows why the headline is generous. Twelve thousand draws from 18 ml works out at 0.0015 ml per draw, or about 667 draws per millilitre. Nothing published puts an ordinary mouth-to-mouth draw anywhere near that figure, so treat 12,000 as the number a machine produces with a two-second puff on a fresh coil, and treat 4,500 to 6,000 as the number a person produces with the same liquid.<\/p>\n

Class-level testing supports the scepticism without measuring this model. A machine comparison of five disposables rated at 5,000 puffs found between 1,930 and 4,010 actual draws, and a separate analysis reported that 73 % of devices rated above 4,000 puffs delivered less than half their rating before the coil or the cell gave out. No independent test of the URO Crystal 12K itself exists in any index we searched, and we are not going to invent one.<\/p>\n

How often you will plug it in, and what the cell can take<\/h2>\n

Similar 650 mAh cells are reported to deliver roughly 150 to 300 draws between charges. Divide that into the draw bands above and the reservoir needs on the order of 15 to 25 full-equivalent charges to be emptied, spread across days rather than done in one sitting. It is an estimate built from comparable cells, not a measurement of this unit, but it is the right shape: you will plug it in repeatedly, and the cell is designed to be charged rather than replaced. Small lithium cells of this size are commonly specified for several hundred cycles, so the cell should outlast the liquid.<\/p>\n

The twelve tap points, grouped by what they actually do<\/h2>\n

The range is a fruit list with one outlier. In the shop I sort them the way the shelf does, by which ones leave fastest; here I have sorted them by how they behave, because that is what a buyer is really choosing between. The middle column describes what the blend is made of rather than what it tastes like, and the right-hand column says which kind of user gets the most out of it.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Flavour<\/th>\nWhat is in the blend<\/th>\nWho gets the most out of it<\/th>\n<\/tr>\n<\/thead>\n
Hielo de Sand\u00eda<\/strong><\/td>\nSweet red watermelon with a cold finish<\/td>\nAnyone who wants the cooling to do the work; the easiest of the twelve to finish<\/td>\n<\/tr>\n
Hielo de Fresa<\/strong><\/td>\nSummer strawberry, chilled hard<\/td>\nLate-evening draws and anyone stepping down from a stronger cold blend<\/td>\n<\/tr>\n
Hielo de melocot\u00f3n<\/strong><\/td>\nRipe peach with a cool edge<\/td>\nThe softest fruit here; suits the first device after a bar-style vape<\/td>\n<\/tr>\n
Hielo de Uva<\/strong><\/td>\nPurple grape, icy<\/td>\nGrape loyalists; the flavour most people recognise instantly<\/td>\n<\/tr>\n
Ar\u00e1ndano y Frambuesa<\/strong><\/td>\nSour raspberry against sweet blueberry<\/td>\nBuyers who find single-fruit blends flat; the sharpest of the berry group<\/td>\n<\/tr>\n
Frutos Rojos Mezclados<\/strong><\/td>\nDeep berry mix, sweet with a tart edge<\/td>\nAll-day draws; broad enough that it rarely becomes tiring<\/td>\n<\/tr>\n
Mr Blue<\/strong><\/td>\nBlue raspberry, blackberry and blueberry together<\/td>\nThe complex end of the range; changes as you go rather than staying put<\/td>\n<\/tr>\n
Kiwi Maracuy\u00e1 Guayaba<\/strong><\/td>\nThree tropical fruits, sweet and tart at once<\/td>\nTropical drink profiles; the sharpest departure from the ice group<\/td>\n<\/tr>\n
Double Apple<\/strong><\/td>\nCrisp green apple over sweet red apple<\/td>\nAnyone who finds the berries too sweet; no cooling at all<\/td>\n<\/tr>\n
Cola de cereza<\/strong><\/td>\nFizzy cola with dark cherry<\/td>\nThe one non-fruit option; best after a meal rather than all day<\/td>\n<\/tr>\n
Fresa y Kiwi<\/strong><\/td>\nStrawberry and tangy kiwi, balanced<\/td>\nMiddle of the road, and the safest pick if you cannot decide<\/td>\n<\/tr>\n
Sand\u00eda con Fresa<\/strong><\/td>\nTwo soft fruits, smooth rather than sharp<\/td>\nLong sessions, for the same reason: nothing in it demands attention<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Two blends with no cooling in them at all<\/h3>\n

Double Apple and Mr Blue are the pair to look at if the chill is what you usually dislike about fruit blends; neither is iced, and both lean tart rather than sweet. Six of the twelve carry the word ice in the name, and the descriptions behind the rest mention a cold finish for several of them, so if you want no cooling at all these two are the safe order and Cherry Cola is the third to consider.<\/p>\n

My own order of preference after a fortnight, with the reason attached so you can disagree usefully: Watermelon Ice first because the cold finish survives a long draw, Kiwi Passion Fruit Guava second because it is the one blend that stays interesting past the halfway mark, Cherry Cola third. Two I would not reorder for myself: Mixed Berry reads as the sweetest of the twelve, and Double Apple is excellent for a day and then suddenly too familiar.<\/p>\n

Day-to-day use, and the two ways the coil behaves<\/h2>\n

There is nothing to set up. Unwrap it, draw, and the body lights as you do. The liquid is sealed in with no fill port, so the only variable you control is how hard and how often you draw, and that turns out to be most of what decides how the second half of the reservoir tastes.<\/p>\n

The draw rhythm that keeps the taste<\/h3>\n

Four mesh sections sit close together inside a shell this size, and after a run of deep draws the wick cannot resupply them as quickly as you empty them. The symptom is recognisable: a warmer, flatter taste, then noticeably less vapour on the next pull. It is not a failure of the coil, it is the wick catching up. Two or three seconds between draws settles it, and it costs you nothing.<\/p>\n

What the final two hundred draws are like<\/h3>\n

Every device in this class fades before it stops. The usual pattern is a gentle slide rather than a cliff: the flavour narrows, the vapour thins, and the last part of the reservoir tastes of less than the first. Comparable devices are reported to lose flavour somewhere between 70 % and 85 % of their rated count, which for a reservoir this size means the change arrives well before the liquid is visibly gone. Expect the last fifth to be thinner than the first, and there will be no moment when the device announces that it has finished.<\/p>\n

Who this suits, and who should buy something else<\/h2>\n

Two columns, honestly drawn. If more than one line in the right-hand column sounds like you, the 18 ml reservoir is working against you rather than for you, and something smaller is the better purchase.<\/p>\n\n\n\n\n\n\n\n\n\n\n
This one suits you if…<\/th>\nBuy something smaller if…<\/th>\n<\/tr>\n<\/thead>\n
You vape steadily through the day and are tired of a device dying on you mid-week<\/td>\nYou vape a handful of times a day; the liquid will go stale long before it empties<\/td>\n<\/tr>\n
You want fruit blends and no tobacco or dessert option in the way<\/td>\nYou want a tobacco, menthol-only or dessert profile; this range has none<\/td>\n<\/tr>\n
You are happy to plug in with a Type-C cable every couple of days<\/td>\nYou want one sealed unit with nothing to recharge<\/td>\n<\/tr>\n
You like a cool finish and prefer a blend that is complex rather than single-fruit<\/td>\nYou dislike cooling; only three of the twelve come without it, so your choice is thin<\/td>\n<\/tr>\n
You carry it in a bag or a jacket and do not mind 85 g<\/td>\nYou want something that disappears in a shirt pocket<\/td>\n<\/tr>\n
The illuminated draw is part of why you are buying it<\/td>\nYou want a screen telling you battery and liquid levels as figures; there is no screen here<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Day-to-day care, storage and charging<\/h2>\n

Nothing here needs tools. Three habits are worth more than any of the specification rows above, and two of them are simply about not forcing the liquid through the coil faster than it wants to travel.<\/p>\n\n\n\n\n\n\n\n\n\n
Care point<\/th>\nWhat goes wrong<\/th>\nEasier habit<\/th>\n<\/tr>\n<\/thead>\n
Residue at the mouthpiece<\/td>\nCondensation collects and reads as a blockage; the draw feels tight for no obvious reason<\/td>\nWipe the mouthpiece and the air inlet with a dry tissue every few days<\/td>\n<\/tr>\n
A run of deep draws<\/td>\nThe wick cannot keep up; the taste flattens and the vapour thins, sometimes with a burnt note<\/td>\nPause two or three seconds between draws and let the wick recover<\/td>\n<\/tr>\n
Leaving the cable in<\/td>\nThe cell sits warm for hours after it is full; heat is the one thing that reliably shortens its working life<\/td>\nUnplug once the body is charged and use a standard Type-C port rather than a high-wattage brick<\/td>\n<\/tr>\n
Storage between uses<\/td>\nSunlight and a warm shelf thin the liquid and age the cell while the device is sitting still<\/td>\nKeep it cool, out of direct sun, and upright so the mouthpiece stays clear<\/td>\n<\/tr>\n
Stock kept for months<\/td>\nSealed units still age; the first draw after a long rest is not the first draw after arrival<\/td>\nRotate stock so the oldest box leaves first, and store boxes off a concrete floor<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

What ends a sealed device<\/h3>\n

In order of likelihood: the liquid runs out, the wick stops keeping up with you, or the cell stops holding a charge. Only the last one is repairable, and only by us, before it ships. Because nothing on the device can be replaced, the useful thing to know is which of the three you are looking at when the performance drops, and the table above is arranged in that order.<\/p>\n

How often you will reach for the cable<\/h3>\n

Expect to top the cell up every few days at the consumption rates in the second section, and expect the reservoir to outlast several of those sessions. Because the liquid is sealed in, the thing that eventually ends the device is the liquid and the coil, not the charging port. That is the honest answer to the question everybody asks: you will not wear the battery out first.<\/p>\n

Questions buyers ask before ordering<\/h2>\n

What if the device stops working altogether?<\/h3>\n

Tell us before you do anything else with it. A unit that will not light or will not draw is a fault case rather than a worn-out one, and we would rather look at it than have you write it off. Keep the packaging it arrived in until you have drawn on it once.<\/p>\n

Why does the vapour stop before the liquid looks finished?<\/h3>\n

Because the liquid is not visible in the first place, and because the wick is the part that gives up first. The coil sits at the bottom of the reservoir and the last millilitres have the furthest to travel; when they stop arriving quickly enough, you get a warm, thin draw with the device still lit. Slow down, and if it stays flat, the reservoir is effectively done.<\/p>\n

Is the sealed body glass or plastic?<\/h3>\n

Our listing does not say, and neither did any page we could find. If the shell material matters to you, ask us before you order rather than assuming from the product photographs.<\/p>\n

Which colour means the battery is nearly flat?<\/h3>\n

We do not know, and we are not going to guess. The device lights when you draw, but no documentation we could find assigns a meaning to any particular colour. Treat the light as an illuminated draw indicator and nothing more.<\/p>\n

How does your draw estimate compare with the manufacturer’s rating?<\/h3>\n

They measure different things. The rating counts short machine puffs on a fresh coil; our range of 4,500 to 6,000 draws comes from the 18 ml reservoir at a published mouth-to-lung consumption rate. Both numbers are on this page, and neither one replaces the other.<\/p>\n

For shops and resellers: quantities, packing and delivery<\/h2>\n

Everything a buyer needs is above. What follows is the trade half of the listing, kept in one place so it does not clutter the rest of the page.<\/p>\n

How it arrives<\/h3>\n

Units are supplied 10 pieces to a display box<\/strong>, which is the shelf-ready unit, and 200 pieces to a shipping carton<\/strong>. The carton measures approximately 365 by 367 by 315 mm and weighs in the region of 17.3 to 17.5 kg gross. Both quantities are our supplier’s stated packing, and both are worth confirming against your own shelf footprint before a large order. Two independent UOR Crystal listings carry the same 10-per-box figure, and one carries the full 200-per-carton and 85 g per piece detail, so the packing line is the best-corroborated part of this listing.<\/p>\n

Order sizes, delivery and reaching us<\/h3>\n

A single device and a full carton are both ordinary orders. Confirmed orders are packed from our own stock and tracking details are issued once they leave. If you are weighing up strengths or flavours for a counter, or you want the packing specification for a specific quantity before you commit, raise it with us first and we will answer before anything ships. The manufacturer’s figures on this page are attributed as manufacturer figures throughout, and anything our own listing could not state is published above as a gap rather than filled in.<\/p>\n

Browse the rest of the range: URO devices<\/a> and every model in the 12k puff tier<\/a>.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

URO Crystal 12K puffs brings an 18 ml reservoir and a 650 mAh cell into a clear-bodied disposable, filled with one of twelve fruit blends and running a 1.0 ohm Four Mesh Coil, recharged through Type-C. Both strengths, 2 % and 5 %, sit in the same shell, so the choice is yours at the tap point. We hold this tier in depth, and the page below gives the specification, an estimate of how many draws 18 ml really delivers, and a read through every flavour.<\/p>","protected":false},"featured_media":2127,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[73],"product_cat":[17],"product_tag":[77,16],"class_list":["post-2113","product","type-product","status-publish","has-post-thumbnail","product_brand-uro","product_cat-eu-warehouse","product_tag-12k-puffs","product_tag-eu-warehouse","first","instock","sale","shipping-taxable","purchasable","product-type-variable","has-default-attributes"],"tiered_pricing_type":"fixed","tiered_pricing_fixed_rules":{"30":8.42,"60":8.33,"100":8.07},"tiered_pricing_product_settings":{"layout":"default","base_unit_name":{"singular":null,"plural":null},"default_variation":null},"tiered_pricing_minimum_quantity":10,"tiered_pricing_roles_data":[],"tiered_pricing_percentage_rules":[],"tiered_pricing_maximum_quantity":null,"tiered_pricing_quantity_step":"10","_links":{"self":[{"href":"https:\/\/24hoursvape.es\/es\/wp-json\/wp\/v2\/product\/2113","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/24hoursvape.es\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/24hoursvape.es\/es\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/24hoursvape.es\/es\/wp-json\/wp\/v2\/comments?post=2113"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/24hoursvape.es\/es\/wp-json\/wp\/v2\/media\/2127"}],"wp:attachment":[{"href":"https:\/\/24hoursvape.es\/es\/wp-json\/wp\/v2\/media?parent=2113"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/24hoursvape.es\/es\/wp-json\/wp\/v2\/product_brand?post=2113"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/24hoursvape.es\/es\/wp-json\/wp\/v2\/product_cat?post=2113"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/24hoursvape.es\/es\/wp-json\/wp\/v2\/product_tag?post=2113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}