For vapers who want a disposable device with ample puff capacity, the Sky Crystal Legend 4000 Disposable Vape (20mg) puts forward an enticing proposition. Boasting up to 4000 puffs, it’s designed for those long days or nights where you’d prefer not to swap devices constantly. But does it deliver the goods in terms of flavour, smoothness, and overall performance? In my experience, it holds its own admirably well. Below, we’ll explore the design, taste profiles, and user experience so you can decide whether Sky Crystal Legend 4000 is your next go-to vape.
Appearance & Portability
The Sky Crystal Legend 4000 sports a distinctive cylindrical form with a polished finish, similar to other “crystal” or “ice” themed disposables. It’s bigger than your standard 600-puff bar, but not so bulky that it becomes unwieldy.
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Crystal-Like Sheen: The brand’s aesthetic, reminiscent of cut glass or faceted edges, offers a stylish twist on the usual disposable look.
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Secure Grip: Thanks to a texturised outer shell or subtle ridges, it’s unlikely to slip from your hand.
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Ergonomic Mouthpiece: Slightly curved, fitting comfortably on the lips for consistent MTL draws.
It’s not the smallest device on the market, but if you want extended usage, expect a slightly larger body to house that bigger battery and e-liquid reservoir.
Puff Count & Battery Capacity
With a name like “4000,” you can guess the device aims to last. Where typical UK disposables range around 600–800 puffs, 4000 stands out. Of course, the exact performance depends on how long your drags are and how frequently you vape. Even so, it’s safe to expect more longevity than your standard short-lived bar.
Potential UK TPD Note: As with other large disposables, make sure you’re purchasing a TPD-compliant version if you’re in the UK. Some variants for non-UK markets may come with bigger e-liquid volumes. The TPD-compliant model might have fewer puffs, but it retains the 4000 branding from the original line. In either case, the coil, battery, and overall design remain consistent, so you’ll still likely see extended usage versus a 600-puff device.
Flavours & Taste Experience
Sky Crystal emphasises bold, sweet, and occasionally icy flavours. Look out for fruit medleys, energy drink-inspired blends, and classic mint or menthol. Popular picks include:
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Blue Razz Lemonade – A tangy berry-and-lemon infusion with a subtle fizz.
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Grape Ice – Juicy grape balanced by a cool exhale.
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Mango Passionfruit – Tropical sweetness with a slight tart undertone.
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Strawberry Kiwi – Classic sweet strawberry meeting tangy kiwi.
The coil inside the Legend 4000 does a commendable job of delivering consistent flavour, rarely dropping off or tasting burnt until the device is nearly done. Each puff, especially in the first few days, is notably vibrant and smooth.
Nicotine Strength & Smoothness
At 20mg nic salt, this disposable is strong enough to satiate ex-smokers or moderate-to-heavy vapers. Nic salts ensure a milder throat hit compared to freebase nicotine, which can be harsh at similar strengths.
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Smooth Inhales: Even with repeated puffs, you’re unlikely to feel scratchiness.
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Quick Nicotine Delivery: The nic salts absorb swiftly, helping curb cravings effectively.
If you need a lower strength or zero nic, you’ll want to check if Sky Crystal Legend 4000 has variations available (some do, like a 0mg). However, 20mg is the default in the UK.
Draw & Vapour Production
Sky Crystal Legend 4000 leans towards a medium MTL draw. It’s neither too tight nor too airy, hitting a sweet spot that most vapers find comfortable. The vapour quantity is moderate—larger than smaller pen-style disposables, but nowhere near the huge clouds from sub-ohm kits.
One highlight is how consistent the vapour production remains. Even as the device ages, the coil rarely falters, and you keep getting decent clouds and steady flavour output. If you enjoy a warm, flavourful puff, you’ll likely appreciate the coil design here.
Pros & Cons
Pros:
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High Puff Count: Less frequent replacements needed, perfect for extended use.
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Robust Flavours: Sky Crystal’s e-liquids are sweet and engaging from the first draw.
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Comfortable Build: The mouthpiece and grip are well-designed.
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Smooth Nic Salt: Minimises throat irritation at 20mg.
Cons:
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Bulkier Profile: Not as small as typical 600-puff disposables, which might be a downside for some.
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Single Nicotine Strength: Generally only 20mg in the mainstream UK market (unless you find a 0mg version).
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Disposable Waste: Large device means potentially more material waste.
Who’s It For?
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Busy Vapers: If you loathe carrying spare disposables or worry about running out mid-day, the higher puff capacity is a godsend.
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Frequent Travellers: Perfect for a weekend trip or a festival, where you’d prefer one device to last.
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Transitioning Smokers: The combination of 20mg nic salt and MTL draw can feel reminiscent of smoking.
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Flavour Fans: If you love intense, sweet e-liquids, Sky Crystal has you covered.
Comparison with Similar Devices
It’s natural to compare the Sky Crystal Legend 4000 to other high-capacity disposables like the Elux Legend 3500 or the RandM Tornado 7000. While they all aim to extend device life, the key differences often lie in coil consistency, flavour recipes, and shape. Sky Crystal’s hallmark is the crisp, sweet taste that doesn’t wane quickly. Some vapers also find the mouthfeel a bit cooler or airier, depending on the flavour. Ultimately, it’s about which brand’s palate you prefer, but from a performance standpoint, Sky Crystal is undeniably competitive.
Price & Accessibility
Sky Crystal Legend 4000 disposables often cost slightly more than small, 600-puff bars, but you get a much longer runtime. That can actually be more economical over time if you’d otherwise burn through smaller disposables rapidly. At Select Vape Club, watch for multibuy deals, which might sweeten the pot if you want to try multiple flavours or buy in bulk.
Final Thoughts
The Sky Crystal Legend 4000 Disposable Vape (20mg) is a compelling solution for vapers craving reliability, longevity, and robust flavour. Its comfortable mouthpiece, consistent coil, and satisfying MTL draw set it up as a strong contender in the higher-capacity disposable market. Though a bit bulkier than a typical short-term device, it rewards you with fewer replacements, bright taste profiles, and the convenience of a single device you can rely on day and night.
If you’re an ex-smoker, a frequent traveller, or just a vaper who loves having a device last well beyond 600 puffs, the Sky Crystal Legend 4000 likely ticks all your boxes. Enjoy the ease, relish the taste, and let the large puff capacity keep you vaping worry-free for longer stretches. It’s yet another sign that disposables are evolving to cater to every imaginable need in the UK vape scene—be it minimal fuss or maximum longevity.