If you own a Caliburn G or G2 and you are about to order a replacement coil, one question matters more than any other: will this coil physically fit my device, and is it the right resistance for how I vape? The G and G2 share a coil platform but they are not identical, and the three available resistances behave very differently depending on what you put through them. Getting this wrong costs you a coil and a session. In a store where there are no returns, we would rather you know the answer before you order.
Caliburn G and Caliburn G2 coils are cross-compatible. All three resistances — 0.8Ω (13-18W, restricted DTL), 1.0Ω (10-15W, tight MTL, round wire), and 1.2Ω (9-13W, tight MTL, mesh) — fit both devices. The 1.2Ω coil ships pre-installed in the Caliburn G2 kit and is sold as a “Caliburn G2 coil” in Uwell’s own materials, but it is physically the same press-fit part that seats into any Caliburn G pod. The same coil series also fits the Caliburn GK2, KOKO Prime, X, Tenet, Explorer, and Ironfist L pods. The price for replacement coils is listed at the current price on the product page.
The Coil Platform First: What G and G2 Actually Share
Both the Caliburn G and Caliburn G2 use a press-fit coil system. The coil drops into the pod from the bottom, seats into a locating slot, and is held in place by friction rather than threading. This design means there is no orientation error: if the coil seats flush, it is in correctly. If it does not seat flush, it is the wrong coil for that pod.
The pod shells for the G and G2 are not interchangeable — the G2 pod is approximately 2mm taller and will not drop cleanly into the G device body. But the coils themselves seat into both pod shells using the same press-fit geometry. That distinction is the source of most of the confusion on forums and in shops: people conflate pod compatibility with coil compatibility, and they are different things. The coil fits both. The pod does not swap between devices.
Uwell calls the 1.2Ω coil a “Caliburn G2 coil” in its own marketing material, which has confused a significant number of buyers into thinking it is a G2-exclusive part. It is not. It fits any pod in the Caliburn G platform, including the original G. The naming convention reflects which device ships with it pre-installed, not which devices it fits.
The Three Resistances: What Each One Actually Does
The 0.8Ω Coil: FeCrAl UN2 Meshed-H, 13-18W, Restricted DTL
This is the warmest and most vapour-forward of the three options. It is a mesh coil, which means the heating element is a fine grid rather than a single wire, and it produces a more even heat across the wicking surface. The Caliburn G ships with this coil pre-installed.
The 0.8Ω coil runs best between 13W and 18W. Below 13W, the mesh does not reach working temperature efficiently and flavour output drops. Above 18W is the device’s rated ceiling anyway, so there is no headroom to push past on either the G or G2. The draw style on this coil is a restricted direct-to-lung (RDTL): not the wide-open draw of a sub-ohm box mod, but looser than a cigarette. Experienced MTL users sometimes find it too airy.
For nicotine, the 0.8Ω coil pairs best with freebase e-liquid at 3mg to 12mg, or with salt nicotine at 20mg or below. Running 50mg salt nicotine through a 0.8Ω coil at 18W will produce a throat hit severe enough that most adult users stop after two puffs. The device is not broken; the pairing is wrong. We see this mistake regularly, and it is the most common reason a Caliburn user concludes the device “is not for them” in the first week.
The 0.8Ω coil is also the most sensitive to e-liquid viscosity. High-VG blends (70VG/30PG and above) wick slowly through the cotton, and fast chain-vaping will outpace the wick’s ability to refill. The result is a dry hit that leaves a burnt taste in the cotton and shortens the coil’s usable life significantly. If your e-liquid is 70VG or higher, pace your draws or switch to the 1.0Ω or 1.2Ω option.
The propylene glycol (PG) component in e-liquid is what carries flavour and wicks readily into cotton; you can review its chemical properties at the PubChem compound entry for propylene glycol (CID 1030). A higher PG ratio means faster wicking and less risk of dry hits on any of these coils.
The 1.0Ω Coil: Round Wire, NOT Mesh, 10-15W, MTL
This is the one that trips up the most buyers, and it is worth stating plainly: the 1.0Ω Caliburn G coil is not a mesh coil. It is a round-wire MTL coil. Several retailers list all three resistances as “UN2 Meshed-H,” which is incorrect. The 0.8Ω and 1.2Ω are mesh builds. The 1.0Ω is round wire. The construction difference changes the draw, the warmth, and the vapour density noticeably.
The 1.0Ω coil runs at 10W to 15W. It delivers a tighter draw than the 0.8Ω and a cooler, drier vapour. It is the closest of the three to a cigarette-style pull. For an adult smoker switching from cigarettes who wants the physical sensation of smoking rather than a cloud-forward experience, this coil is the more practical starting point.
Nicotine pairing: the 1.0Ω works well with salt nicotine at 20mg to 35mg, or with freebase at 6mg to 12mg. The cooler temperature and tighter draw mean the throat hit from salts is less sharp than through the 0.8Ω. Vapers who found 50mg salt through a 0.8Ω too harsh often find the same liquid tolerable through a 1.0Ω, depending on the specific salt formulation. At 50mg salt through a 1.0Ω, results vary by individual tolerance; try 35mg first if you are uncertain.
The 1.2Ω Coil: FeCrAl UN2 Meshed-H, 9-13W, Tight MTL
The 1.2Ω is a mesh coil, like the 0.8Ω, but it runs at a lower wattage window of 9W to 13W. It ships pre-installed in the Caliburn G2 kit. The draw is the tightest of the three — closer to a cigarette draw than either of the other options — and the vapour output is the least dense. This is the coil for high-strength salt nicotine. It is the right pairing for 35mg to 50mg salt nicotine and a 50/50 or high-PG e-liquid.
Running 50mg salt nicotine through a 1.2Ω at 9 to 13W is a well-balanced pairing for a smoker-equivalent experience. The nicotine delivery is efficient without the harsh throat hit that comes from pushing high-strength salts through low-resistance coils at high wattage. The low wattage also means the coil runs cooler, which reduces the rate at which the cotton chars from sweetened e-liquids. Coil life with salt nicotine through a 1.2Ω will vary considerably depending on the sugar content of the liquid, how frequently you vape, and how well you prime the coil before first use. We do not state a specific lifespan figure because Uwell does not publish one and we have not tested it formally; what we can say is that dry hits from chain-vaping and sweet liquids are the two fastest ways to end a coil’s life early on any resistance.
Cross-Compatibility: Which Devices Accept This Coil Series
The Caliburn G coil platform is one of the widest-compatibility coil systems Uwell makes. The same press-fit coil seats into the following pod families: Caliburn G, Caliburn G2, Caliburn GK2, Caliburn GZ2, Caliburn X, Caliburn Explorer, Caliburn KOKO Prime, Caliburn Tenet, Caliburn Tenet KOKO, and Ironfist L. The coil itself fits all of them. The pod shells do not swap interchangeably between all of these devices, so if you own a GK2, for example, you need GK2 pods — but you can source your replacement coils from the same Caliburn G coil stock.
This is useful context for anyone ordering for a household with more than one Uwell pod device. One coil SKU covers the full G-platform lineup. The Caliburn G3, G3 Pro, G5, and newer post-G2 models use different coil systems and are not part of this platform; if you own a G3 or later, your coils are a separate purchase.
The Spec Comparison Table
| Caliburn G | Caliburn G2 | |
| Battery | 690mAh | 750mAh |
| Max output | 18W | 18W |
| Pod capacity | 2ml | 2ml |
| Dimensions | 108.3 x 22.5 x 12.6mm | 110.5 x 22.5 x 13mm |
| Kit coil included | 0.8Ω UN2 Meshed-H | 1.2Ω UN2 Meshed-H |
| Airflow | 2 positions via pod orientation | Fixed single airflow |
| Charging | USB Type-C | USB Type-C |
| Coil | Construction | Wattage Range | Draw Style | Nicotine Pairing |
| 0.8Ω | FeCrAl UN2 Meshed-H | 13-18W | Restricted DTL | Freebase 3-12mg, Salt up to 20mg |
| 1.0Ω | Round wire (NOT mesh) | 10-15W | Tight MTL | Salt 20-35mg, Freebase 6-12mg |
| 1.2Ω | FeCrAl UN2 Meshed-H | 9-13W | Tight MTL | Salt 35-50mg, high-PG e-liquid |
All three coil resistances fit both the Caliburn G and Caliburn G2 pod shells.
What Happens When You Use the Wrong Pairing
The two wrong pairings we see most often are worth naming directly.
The first is 50mg salt nicotine through a 0.8Ω coil. The throat hit on a high-strength salt through a low-resistance mesh at 18W is harsh enough that most adult users stop after one or two draws and conclude the device is not for them. The device is working correctly. The pairing is not. Switch to the 1.2Ω coil or reduce the nicotine strength before abandoning the device.
The second is high-VG freebase through any of these coils without adequate priming time. A 70VG/30PG e-liquid will take longer to saturate the cotton wicking material. Vaping within the first few minutes of filling, without giving the coil time to prime, results in a dry hit that carbonises a small section of the cotton. Once the cotton is burnt, the coil’s flavour is compromised for its remaining life. Prime every new coil by filling the pod and waiting at least five to ten minutes before the first draw. This applies across all three resistance options.
Refer to the NIH’s toxicology review of e-cigarette constituents for documented information on what e-liquid base ingredients contain; we do not make claims about health outcomes in our own voice.
KandyVape operates under a strict no-return, no-refund policy on all products. We detail these coil and liquid pairings here because a coil ordered against the wrong specification cannot be returned.
How to Verify Your Coil Is Genuine Before You Vape It
The Caliburn G coil is counterfeited at scale in the South Asian market. Counterfeit coils reach Bangladesh through grey-market import channels and are sometimes indistinguishable from genuine units in low-resolution product photos. Physical inspection on arrival is the only reliable check.
Uwell’s official method: scratch off the coating on the anti-counterfeit label on the packaging, then enter the code at Uwell’s product authentication portal (myuwell.com/verify) or scan the QR code on the same label. A genuine unit will return a confirmation. A counterfeit will return an error or a generic non-confirmation page. This check takes under thirty seconds and should be done before the coil is installed.
If you cannot run the code check for any reason, Uwell’s own guidance on identifying genuine versus fake devices includes the following physical indicators. On genuine coils, the text on the coil body (UN2 Meshed-H and the resistance value) is cleanly printed and aligned. The coil window is symmetrical and centred. The wicking material visible through the window is white and evenly packed. The overall weight of the coil should feel consistent with prior genuine purchases; counterfeit coils are frequently lighter because the cotton fill is thinner.
Grey-market listings price these coils lower than the current price listed on our product page for a reason. The difference in unit cost between a genuine coil and a clone is the margin those sellers are pocketing. A counterfeit coil that delivers a burnt draw on its first session is not a 150 BDT saving. It is 150 BDT lost plus the cost of a new coil, with no way to recover either.
A Note on the Bangladesh Regulatory Context
E-cigarettes are not banned in Bangladesh. The provisions introduced by the December 2025 ordinance that would have prohibited their import and marketing were removed before the Smoking and Tobacco Products Usage (Control) (Amendment) Act, 2026, was gazetted on 10 April 2026, as reported by Prothom Alo. The 2026 Act does carry a broad advertising prohibition across digital and print media; whether that prohibition applies specifically to e-cigarette retail content is a question that has not been resolved by the courts or by formal regulatory guidance at the time this article was written. We write in educational and informational register accordingly, and we will update this article if the legal position changes.
Ordering from KandyVape
Orders placed before 3:00 PM dispatch the same day, including weekends. Free shipping applies on orders of 3,500 BDT and above. Delivery charges for orders below that threshold vary by location; the current rates are listed on the shipping page. If you want to inspect the coils and verify the authenticity code on the box before purchasing, our physical shop is at Shop #22, Level #3, Sahabuddin Plaza, Adabar, Mohammadpur 1207, Dhaka.
FAQ
Q1: Can I use Caliburn G coils in my Caliburn G2?
Yes. All three Caliburn G coil resistances — 0.8Ω, 1.0Ω, and 1.2Ω — physically fit the Caliburn G2 pod shell. Uwell confirms on the official Caliburn G2 product page that the G2 is compatible with the 1.0Ω and 0.8Ω coils from the Caliburn G;
the 1.2Ω coil ships pre-installed in the G2 kit and is available separately under the Caliburn G coil SKU. The pod shells between the two devices do not swap, but the coils themselves do.
Q2: Can I use the Caliburn G2’s 1.2Ω coil in my Caliburn G?
Yes. The 1.2Ω coil is a press-fit part that seats into any Caliburn G-platform pod shell. Uwell brands it as a “Caliburn G2 coil” in its kit marketing because that is the device it ships with, but physically it is the same part. Run it at 9W to 13W in the Caliburn G for a tight MTL draw.
Q3: Which resistance should I use with 50mg salt nicotine?
The 1.2Ω coil at 9W to 13W is the appropriate pairing for 50mg salt nicotine on either the Caliburn G or G2. The 0.8Ω coil at 18W with 50mg salt will produce a throat hit that most adult users find too harsh to vape consistently. The 1.0Ω round-wire coil at 10W to 15W sits between the two in terms of harshness; at 50mg, individual tolerance varies and we would recommend trying 35mg salt first if you are uncertain.
Q4: Is the 1.0Ω Caliburn G coil a mesh coil?
No. The 0.8Ω and 1.2Ω coils are FeCrAl UN2 Meshed-H builds, meaning the heating element is a mesh grid. The 1.0Ω coil is a round-wire construction. Several retailers list all three as mesh, which is incorrect. The round-wire 1.0Ω produces a cooler, drier, tighter draw than either mesh option.
Q5: How long do Caliburn G coils last?
Coil life depends on the frequency of use, the sugar content of the e-liquid, the nicotine strength, and how well the coil was primed before first use. We do not state a single lifespan figure because Uwell does not publish one and the variable range is too wide to be useful as a single number. Dry hits from chain-vaping and sweetened or high-VG e-liquids are the two most common causes of early coil failure. A burnt or muted taste, gurgling, or visible darkening of the wicking material through the coil window are the signs that a coil needs replacing.
Q6: When will my order arrive if I order today?
KandyVape dispatches all orders placed before 3:00 PM on the same day, including weekends. Delivery timing from dispatch depends on your location; current delivery windows are listed on the shipping information page. Orders above 3,500 BDT ship free.
Q7: What happens if the coil does not work for me after I buy it?
KandyVape operates a strict no-return, no-refund policy on all products. There are no exceptions confirmed in our current policy. This is the reason this article exists in as much detail as it does: the right coil for your device and your e-liquid needs to be identified before you order, not after. If you are uncertain about compatibility or pairing, contact us before purchasing — through the details on our contact page, or visit us in person at Mohammadpur — and we will confirm the correct specification for your setup.
If you know your device and your nicotine strength, use the coil specification table above to confirm the correct resistance before ordering. If you are uncertain which pairing suits your setup, bring your device to our shop at Shop #22, Level #3, Sahabuddin Plaza, Adabar, Mohammadpur 1207, Dhaka, and we can confirm the right coil in person. Orders placed before 3:00 PM dispatch the same day.
