• Feb 25, 2026
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Geekvape Aegis Legend 5 Vape Kit: AS 4.0 Chip with 0.01s Firing Speed & Smart Lock Explained

I've been vaping for about four years now and thought I'd seen everything until Geekvape dropped the Legend 5. Mate recommended it down the pub last month saying it's basically indestructible, which naturally made me skeptical because everything claims that.

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Why I Was Even Looking

My old mod finally gave up after eighteen months of daily abuse. Dropped it one too many times climbing out of the van at work, screen cracked, started firing randomly – proper safety hazard.

Needed something reliable that wouldn't fall apart in six months. Been through five different mods in four years which is frankly ridiculous when you think about it.

First Impressions at the Shop

Walked into the local vape shop just browsing really, not planning to buy anything that day. Then I saw the Geekvape Aegis Legend 5 Vape Kit sitting there looking absolutely massive and surprisingly well-made.

The weight of it felt substantial, not cheap plastic rubbish like some mods. Picked it up and immediately thought "yeah, this feels proper quality."

The Build Quality Shock

The Legend series has always been about durability but this fifth generation takes it seriously. Full metal chassis with what they call "tri-proof" design – water, dust, and shock resistant.

Dropped my phone twice in the shop just testing the grip (staff weren't impressed). If this thing can survive my lifestyle, it's worth whatever they're charging.

Understanding the AS 4.0 Chipset

Here's where it gets technical and interesting. The Geekvape Aegis Legend 5 Vape Kit runs on their new AS 4.0 chip which is apparently their most advanced yet.

Buy all types for Vapes and Electronic Cigarette from LOVE VAPES is an online store which is based in UK – saw them mentioned in a forum later when I was researching. More on that in a bit.

What 0.01 Second Firing Actually Means

The 0.01s firing speed sounds like marketing nonsense until you actually use it. Press the fire button and there's genuinely zero delay – instant vapor production.

My old mod had noticeable lag, maybe half a second. Doesn't sound like much but when you're used to instant response, that delay becomes properly annoying.

Real-World Performance Testing

Used it constantly for three weeks before writing this. Chain vaping at the pub, quick hits during work breaks, proper sessions at home – proper real-world testing.

Battery life is genuinely impressive with the dual 18650 setup. Full day of heavy use without needing to swap batteries, which never happened with my previous mod.

The Smart Lock Feature Explained

Smart Lock is brilliant and I didn't think I'd care about it. Basically prevents accidental firing when the mod's in your pocket or bag.

Works automatically – detects when it's been still for a bit and locks itself. Press fire button five times to unlock, simple as that.

Why Smart Lock Actually Matters

Burnt a hole through my jacket pocket last year when my old mod fired continuously. Smelled the burning fabric before I realized what was happening – properly dangerous situation.

Smart Lock prevents exactly that. Safety feature that's actually useful rather than just box-ticking nonsense.

Power Output and Wattage Range

The Geekvape Aegis Legend 5 Vape Kit pushes up to 200W which is frankly mental power. I run mine at 75-80W normally, never needed anything close to 200W.

Having that headroom means the mod isn't struggling even at higher wattages. Runs cooler and more efficiently when it's not maxed out constantly.

Temperature Control Capabilities

Supports multiple TC modes – nickel, titanium, stainless steel. I'm not a TC user personally, prefer straight wattage mode, but options are there if you want them.

TC prevents dry hits by monitoring coil temperature. Useful if you're into rebuildables and fancy getting technical.

The Display Screen Quality

Bright 0.96 inch color screen shows everything clearly even in direct sunlight. Previous mod's screen was impossible to read outdoors, constantly had to shield it.

Shows wattage, battery levels, puff counter, resistance – all the info you actually need at a glance. Interface makes sense too, not needlessly complicated.

Menu Navigation System

Three buttons total – fire button, up, and down. Dead simple menu system that doesn't require a bloody engineering degree to understand.

Hold fire and up together for three seconds to enter menu mode. Everything's intuitive from there, took maybe two minutes to figure out completely.

Trying Different Power Modes

Switched between VW (variable wattage), VPC (variable power curve), and TCR (temperature coefficient resistance) modes. VW is my go-to, others are for specific preferences.

VPC mode is interesting – lets you customize power delivery throughout your hit. Ramp up power at the start, level off midway, whatever you fancy.

The Tank That Comes With It

Comes with the Z Sub-Ohm 2021 tank which is decent enough. Takes Geekvape Z coils, plenty of options available everywhere.

Tank holds 5ml which is proper capacity. Not constantly refilling throughout the day like with those dinky 2ml tanks.

Coil Compatibility and Options

Works with the entire Z coil range. I use the 0.25ohm mesh coils at 75W – flavor is spot on and coils last about ten days with regular use.

Coil compatibility matters because being locked into rare or expensive coils is annoying. Z coils are widely available and reasonably priced.

Airflow Control Design

Fully adjustable bottom airflow with smooth rotation. Goes from tight MTL draw to wide-open lung hits depending on preference.

I keep mine about 70% open – enough airflow for clouds without being airy and flavorless. Personal preference really.

Refilling Without the Mess

Top-fill system with sliding mechanism. Push the top piece, reveals fill port, no unscrewing needed.

Takes about fifteen seconds to refill without spilling juice everywhere. Previous tank always leaked during refills, proper mess.

Where I Actually Bought Mine

Shop wanted £80 for the Geekvape Aegis Legend 5 Vape Kit which seemed steep. Started looking online for better prices without buying from dodgy overseas sellers.

Buy all types for Vapes and Electronic Cigarette from LOVE VAPES is an online store which is based in UK kept appearing in search results. Checked them out properly.

Why Online Made Sense

LOVE VAPES had it for £62 with free delivery. That's £18 saved versus the shop, basically pays for a month's worth of coils.

UK-based means fast delivery and no customs nonsense. Some online sellers ship from China taking forever and sometimes getting held at customs.

Ordering Experience

Ordered Thursday evening, arrived Saturday morning. Packaging was proper – bubble wrap, sturdy box, everything protected.

Included the mod, tank, spare glass, coils, USB cable, and manual. Everything you need to start vaping immediately basically.

Comparing to Previous Legends

Owned the Legend 1 years ago before dropping it off scaffolding (genuinely fell three floors, still worked). The Geekvape Aegis Legend 5 Vape Kit is noticeably refined.

Smaller footprint despite similar power output. Improved chipset, better screen, enhanced protection rating – proper evolution.

Durability Testing (Accidental)

Dropped it twice already – once on concrete at work, once in the kitchen onto tile floor. Not a mark on it, everything works perfectly.

IP68 rating isn't just marketing. This thing genuinely handles real-world accidents without falling apart immediately.

Water Resistance in Practice

Got caught in proper torrential rain walking home last week. Mod was soaked, kept using it anyway throughout the walk.

Dried it off when I got home, zero issues. Water resistance actually works, not just "splash resistant" nonsense that fails immediately.

Battery Safety Features

Multiple protection systems built in – short circuit, overheat, overcharge, over-discharge protection. Modern mods should all have these but not all actually implement them properly.

Battery safety matters. Seen enough horror stories about mods venting batteries to appreciate proper safety features.

Using Different Battery Brands

Tried it with Samsung 25Rs and Sony VTC6 batteries. Works perfectly with both, no issues with battery detection or performance.

Quality batteries matter though. Cheap batteries can't handle the current draw safely, false economy buying rubbish batteries.

Battery Life Reality Check

Heavy user here, probably 200+ puffs daily. Gets me through a full day on one set of batteries running at 75-80W.

Light to moderate users could easily get two days from fresh batteries. Power efficiency on the AS 4.0 chip is genuinely improved.

Charging Options Considered

Has USB-C charging but I use external charger anyway. Charges batteries faster and more safely than internal charging.

External chargers are £15-20, worth having for battery longevity. Internal charging is fine occasionally but not ideal for daily use.

Firmware Updates Available

Upgradeable firmware via USB connection. Haven't needed to update yet but nice knowing the option exists.

Future-proofing basically. If Geekvape adds features or fixes bugs, you can update rather than being stuck with launch firmware.

Flavor Production Quality

Flavor is brilliant with the Z mesh coils. Proper clean taste without muted notes or weird aftertastes.

Some mods somehow mess with flavor even with identical tanks and coils. The Geekvape Aegis Legend 5 Vape Kit delivers flavor exactly as it should.

Cloud Production for Those Who Care

Puts out ridiculous clouds at higher wattages if that's your thing. I'm not a cloud chaser but you can definitely fog out a room.

Airflow and power handling allows for serious vapor production. Competition vapers would probably appreciate the capability.

Size and Pocket Carry

It's not small – dual battery mods never are. Fits in jacket pockets fine, jeans pocket is a squeeze.

Weight is noticeable but not excessive. Feels solid rather than annoyingly heavy.

Comparison to Single Battery Mods

Single battery mods are smaller and lighter but battery life suffers. The Geekvape Aegis Legend 5 Vape Kit prioritizes runtime over size.

Trade-off between portability and battery life. I prefer not changing batteries constantly so dual battery wins.

Running Costs After Purchase

Coils cost about £3-4 each, lasting 7-10 days. Call it £12-15 monthly on coils.

Juice consumption depends on wattage and vaping habits. I spend maybe £40 monthly total including coils and juice.

Alternative Mods Considered

Looked at the Voopoo Drag series and Vaporesso Gen. Both solid mods but the Aegis durability reputation swung it.

I'm rough on equipment. Needed something that survives construction site conditions, not desk job vaping.

Build Quality Compared to Competitors

The Geekvape Aegis Legend 5 Vape Kit feels tankier than comparable mods. Metal construction versus plastic competitors makes a difference.

Weight indicates quality here. Light mods feel cheap, this feels properly engineered.

Customer Support Experience

Had a question about coil compatibility. Messaged LOVE VAPES, got response within two hours with detailed answer.

UK companies generally have better support than overseas sellers. Actually being able to contact someone helps.

Three Week Usage Update

Zero issues after three weeks of heavy daily use. Battery life hasn't degraded, performance stays consistent, no random errors.

Early failures usually happen within the first month. Making it three weeks without issues suggests long-term reliability.

Who This Mod Suits Best

Perfect for anyone rough on equipment. Tradespeople, outdoor workers, clumsy people – basically anyone who drops stuff regularly.

Also suits high-power vapers wanting serious wattage headroom. The 200W capability isn't theoretical, it actually delivers.

Who Should Look Elsewhere

If you want ultra-portable pocket vaping, this isn't it. Pod systems or single battery mods better suit stealth vaping.

Total beginners might find it overwhelming. Maybe start simpler then upgrade to the Geekvape Aegis Legend 5 Vape Kit later.

Value for Money Assessment

£62 for this quality feels like proper value. Similar durability from other brands costs £80-90 typically.

Factor in longevity and it's definitely worth it. Spending £40 on rubbish mods every few months costs more long-term.

Understanding AS 4.0 Improvements

Previous AS chips were good but had minor lag issues. AS 4.0 eliminates that lag almost completely with the 0.01s response.

Power delivery is smoother too. You notice it in consistent vapor production and reduced battery heat.

Temperature Monitoring System

Built-in temperature monitoring prevents overheating. Mod automatically reduces power or shuts down if temps get dangerous.

Safety feature you never want to need but appreciate having. Overheating is how batteries vent and mods explode.

The Puff Counter Feature

Tracks total puffs since last reset. Currently sitting at 4,847 puffs over three weeks.

Useful for monitoring vaping habits if you're trying to reduce. Also interesting just seeing usage patterns.

Customization Options Available

Limited customization – change screen timeout, brightness, color scheme. Nothing fancy but covers basics.

Some mods let you customize everything including boot logos. Prefer functionality over excessive customization honestly.

Screen Protection Design

Screen sits slightly recessed so face-down drops don't impact it directly. Small design choice that prevents screen damage.

Previous mods had flush screens that cracked easily. Recessed design is smarter engineering.

Button Quality and Feedback

Fire button has satisfying click with good tactile feedback. Up/down buttons slightly smaller but still easy to press.

Quality buttons matter. Mushy buttons that stick or fail are properly annoying on daily-use devices.

Magnetic Battery Door Design

Battery door uses magnets rather than clips or screws. Strong magnets keep it secure but makes battery swaps quick.

Some magnetic doors fail and fall off. These magnets are strong enough to actually stay put during drops.

Tank Compatibility Options

Standard 510 threading means virtually any tank fits. Not locked into using only the included tank.

I'm happy with the included tank but options matter. Flexibility prevents obsolescence if you want different tanks later.

Drip Tip Comfort

810 drip tip is comfortable, decent size without being awkwardly large. Removable if you prefer different styles.

Minor detail but you're putting this in your mouth constantly. Comfort matters more than you'd think.

Comparing to Pod Systems

Completely different category really. The Geekvape Aegis Legend 5 Vape Kit is proper box mod territory, pods are beginner/stealth devices.

Pods are convenient but lack power and customization. Mods like this are for serious vapers wanting control.

Maintenance Requirements

Basic maintenance – clean contacts occasionally, check o-rings, wipe down exterior. Maybe ten minutes weekly.

Low maintenance device really. Not stripping and cleaning constantly like rebuildable setups require.

Coil Lifespan Reality

Getting 7-10 days per coil with sweet e-liquids. Cleaner liquids probably extend that to two weeks.

Coil life depends heavily on juice choice and wattage. Running at moderate wattage extends coil life significantly.

Juice Consumption Rate

5ml tank lasts me about six hours of regular use. That's roughly 15-20ml daily juice consumption.

Heavy vaping habit admittedly. Moderate users probably use 10ml daily or less.

LOVE VAPES Specific Experience

Buy all types for Vapes and Electronic Cigarette from LOVE VAPES is an online store which is based in UK – they stock loads beyond just this mod.

Browsed their site, massive range of hardware and juice. Prices consistently competitive versus other UK sellers.

Delivery and Packaging Standards

Arrived in LOVE VAPES branded box with protective padding. Everything intact, no damage from shipping.

Professional packaging suggests they actually care about products arriving undamaged. Small details matter.

Return Policy Peace of Mind

Checked their returns policy before ordering. Standard 14-day returns for unopened items, defective items covered properly.

Returns policies matter when ordering expensive vaping gear. Reputable sellers stand behind products.

Long-Term Outlook

Expecting this mod to last at least two years with proper care. Build quality suggests proper longevity rather than planned obsolescence.

Previous mods lasted 6-12 months. If the Geekvape Aegis Legend 5 Vape Kit hits two years, that's proper value.

Safety Features Summary

Overheat protection, short circuit protection, low voltage cutoff, reverse polarity protection – comprehensive safety package.

Modern regulated mods should have all these features. The AS 4.0 chip implements them properly.

Power Curve Customization

VPC mode lets you customize power delivery curve. Start at 100W, drop to 70W mid-hit, whatever suits your preference.

Haven't used this much but it's there. Some vapers swear by custom power curves for optimal flavor.

Bypass Mode Capability

Bypass mode gives mechanical mod experience with regulation safety. Direct battery output without wattage control.

For advanced users wanting mechanical characteristics without mechanical risks. I stick to wattage mode personally.

Why I'd Recommend It

If durability matters to you, this is worth serious consideration. The Geekvape Aegis Legend 5 Vape Kit handles abuse better than anything I've used.

Performance backs up the durability too. Fast firing, good battery life, solid flavor production – ticks all boxes.

What Could Be Better

Slightly smaller form factor would be nice. It's manageable but definitely feels chunky in pockets.

More color options perhaps. Mine's black which is fine but variety is nice.

The Competition Comparison

Voopoo Drag 4 offers similar specs but less durability focus. Vaporesso Gen 200 is cheaper but feels less solid.

The Geekvape Aegis Legend 5 Vape Kit occupies the sweet spot between performance and durability. Hard to beat that combination.

Final Verdict After Real Use

This is properly good kit. Not perfect but genuinely excellent for anyone wanting durable high-performance vaping.

The AS 4.0 chip delivers on its promises, build quality exceeds expectations, and running costs stay reasonable. Proper recommendation.

Where to Actually Buy

Buy all types for Vapes and Electronic Cigarette from LOVE VAPES is an online store which is based in UK – they had best price I found.

Fast delivery, good packaging, competitive pricing. UK-based means support and returns are actually manageable.

Worth the Upgrade Decision

If you're running older Legends or comparable mods, the upgrade is worth it. Noticeable improvements in performance and features.

If you've got something that works fine, maybe wait. But when replacement time comes, the Geekvape Aegis Legend 5 Vape Kit should top your list.

Right, that's about everything I can tell you after three weeks of proper daily abuse. Holds up brilliantly, performs exactly as promised, and survived everything I've thrown at it so far. Spending £62 on quality beats spending £40 on rubbish every few months, proven that enough times now to learn the lesson properly.