My Verdict: 8.2/10 – A solid, reliable MTL kit that delivers consistent performance. However, it won't satisfy cloud chasers or those wanting cutting-edge features. I've been vaping for over five years, and I've tested dozens of devices. When bought the Innokin Coolfire Z60 kit to review, I committed to using it as my primary device for 30 full days. This isn't another first-impressions review. This is what happened when the honeymoon period ended and real-world use began.
I used it daily for a month, commuting through London, on weekend countryside trips, and everything in between. I can tell you exactly what this £34.99 kit delivers and where it falls short.
Innokin Coolfire Z60 Specifications
| Feature | Details |
| Wattage Range | 6–60 W (adjustable) |
| Output Voltage | 1.0–7.5 V |
| Resistance Range | 0.2–3.5 Ω |
| Battery | Internal 2500 mAh; USB-C charging (up to 1.7 A) |
| Charging Time | ~75–90 minutes with 5 V / 1.7 A charger |
| Modes |
• Coil+ – post-puff pulse to reduce coil saturation • Refresh – manual re-wick at ~40% wattage |
| Tank | Zlide Top tank — 2 ml (UK TPD), 3 ml (international); optional ~4.5 ml bubble glass |
| Airflow | Top airflow, fully adjustable |
| Dimensions (mod) | ~75 × 36.6 × 27.2 mm |
| Weight (mod) | ~128 g (without tank) ~165 g with tank + e-liquid (measured) |
| Materials | Zinc alloy body with leather-effect grip finish |
| Included Coils |
• 0.3 Ω Z-Coil (RDL) • 0.6 Ω DuoPrime Z-Coil (MTL/RDL) (box contents may vary by region) |
| Coil Compatibility | Compatible with all Innokin Z-Coils |
| Safety Features | Over-discharge, overheat, cut-off, short-circuit, and overcharge protection |
| Colours | Multiple finishes available (typically 7–8 colours, varies by market) |
Note: UK TPD-compliant 2 ml tank; 18+ only.
My Testing Methodology
Over 30 days, I tracked everything: puff counts, charging cycles, e-liquid consumption, and coil changes. I used three different e-liquids – a 50/50 12 mg salt from IVG, a 70/30 6 mg freebase from Dinner Lady, and a 60/40 18 mg salt from Pod Salt. I rotated between the included 0.6 Ω and 0.8 Ω Z-coils, testing both Mouth-to-Lung (MTL) and restricted Direct-to-Lung (DTL) styles.
My daily routine included morning commutes on the Tube, lunch breaks at work, and evening relaxation sessions. I deliberately didn't baby the device. It stayed in my jacket pocket, endured British weather, and handled the wear of daily use.
Week 1: First Impressions Validated
Initial thoughts: Solid build quality, straightforward setup, impressive flavour from the Zlide tank
The unboxing experience was typical Innokin – nothing fancy but everything you need. The Z60 felt substantial in hand without being heavy. Innokin lists the mod at 128 g without the tank; my kitchen scales showed 165 g including the tank and e-liquid. The leather-effect finish looked smart, though I wondered how it would hold up.
Setting up was genuinely simple. The 0.6 Ω coil came pre-installed. I filled the tank and, after a 5-minute priming, I was vaping. The automatic coil recognition worked perfectly, suggesting 20–25 W for the 0.6 Ω coil.
Note for UK buyers: the kit includes the Zlide Top tank in a TPD-compliant 2 ml version. Non-TPD regions typically receive 3 ml, with 4.5 ml options available via bubble glass on some listings.
First impressions of flavour were strong. Using my usual IVG salt, the taste was clean and defined – noticeably better than the Aspire PockeX I'd been using previously. The top airflow system meant zero leaking, even when I accidentally left it sideways in my car overnight.
Week 1 surprise: The Coil+ mode actually worked. This feature manages power delivery more intelligently. It pulses the coil after each puff to prevent saturation. It seemed to extend coil life slightly, though I couldn't measure the exact difference yet.
Weeks 2–3: The Real Performance Test
This is where most reviews end, but it's where real-world performance begins. By day 10, I had my first coil change. The 0.6 Ω lasted exactly 23 ml of e-liquid before the flavour started muting. Not bad, but not exceptional either.
I switched to the 0.8 Ω coil and immediately noticed the difference. Better suited to my 50/50 salts, it delivered a tighter, more satisfying MTL draw. At 15 W, it felt perfect for my morning coffee ritual.
Battery life: Reality check
| Style / Coil | Wattage | Puffs Per Charge | Real-world Usage |
| Light MTL (0.8 Ω) | 12–16 W | 420–480 | 1.5–2 days |
| Moderate MTL (0.6 Ω) | 18–22 W | 350–400 | 1 day |
| Restricted DTL (0.6 Ω) | 25–28 W | 280–320 | 8–10 hours |
The 2500 mAh battery held up well for MTL vaping, typically lasting 1.5–2 days at 12–16 W. With my ~200 puffs/day routine, I charged every other day. Using a 5 V / 1.7 A USB-C charger, top-ups from 20% to 100% took roughly 75–90 minutes.
However, when I tried to use it as a restricted DTL device with the 0.6 Ω coil at higher wattages, battery life dropped significantly. This confirmed what I suspected – it's designed primarily for MTL vapers.
Week 4: Long-term Usability
By week four, the device had settled into my routine completely. The leather finish was showing slight wear where my thumb naturally rested, but nothing concerning. More importantly, performance remained consistent.
I was on my third coil (another 0.8 Ω), and it was performing the same as the first. No degradation in the device's ability to recognise coils or maintain consistent power delivery.
Week 4 discovery: The spring-loaded 510 connection is brilliant. Unlike threaded connections that can work loose, this maintained perfect contact throughout testing. There were no intermittent readings or wobbles.
Real-world scenarios tested
Commuting and Travel
The Z60 spent countless hours in my jacket pocket, navigating London transport. The form factor is perfect for discreet vaping – compact enough not to bulk out your pocket, but substantial enough that you won't lose it.
I tested it on a weekend trip to Edinburgh, including the train journey and walking around the city. No leaks despite pressure changes. No accidental firing despite being jostled about. The battery lasted the entire day of sightseeing.
Different Vaping Styles
The 0.8 Ω coil at 12–16 W delivered the best MTL experience. It worked brilliantly with both 12 mg and 18 mg salts, providing satisfying throat hit without harshness. The 0.6 Ω coil offered more versatility – decent MTL at 18 W, and acceptable restricted DTL at 25 W, though vapour production was modest.
I briefly tried a 0.3 Ω coil I purchased separately. While it worked, it drained the battery too quickly for practical daily use and the airflow felt restrictive for proper DTL vaping.
E-liquid Compatibility
50/50 salts performed best across all coils. The 60/40 Pod Salt worked well too, though slightly less flavourful. The 70/30 freebase was adequate but didn't shine – this kit clearly prefers higher PG ratios.
Coil Performance Deep Dive
| Coil | Lifespan (ml) | Sweet Spot (W) | Best E-liquid | Days of Use | Monthly Cost* |
|---|---|---|---|---|---|
| Z 0.8 Ω MTL | 25–28 ml | 12–16 W | 50/50 salts | 7–9 days | £12–15 |
| Z 0.6 Ω DuoPrime | 20–23 ml | 18–22 W | 60/40 any | 6–8 days | £14–18 |
*Estimated monthly cost based on average daily usage and e-liquid price of £3.99 per 10 ml bottle.
*Based on 95–105 ml monthly consumption and £3.50 per coil
The Coil+ mode did seem to extend life slightly – I'd estimate 10–15% longer before flavour degradation. The Refresh mode was useful for reviving a coil that was starting to taste muted. By manually pulsing the coil, I could clear out residue, buying perhaps another day or two of use.
Battery Life Reality Check
The 2500 mAh internal battery is the Z60's strongest feature for MTL vapers. During testing, I logged every charging cycle:
- Average charge cycles per week: 3.5
- Fastest charge time (10–90%): 75 minutes
- Pass-through vaping: Worked perfectly, no throttling detected
- Battery degradation: None noticeable over 30 days
For context, this easily outlasted my partner's Caliburn G2 (690 mAh), which needed charging twice daily with similar usage.
Monthly Usage Summary
- Total e-liquid consumed: 102 ml
- Coils used: 4 coils over 30 days
- Charging cycles: 15 total charges
- Total cost: £14 for coils (excluding e-liquid)
Pros Confirmed After 30 Days
- Exceptional battery life for MTL vaping
- Completely leak-proof top airflow design
- Consistent, reliable performance
- Simple operation – no complicated menus
- Coil+ and Refresh modes are genuinely useful
- Fast USB-C charging with pass-through
- Solid build quality and materials
- Great value at £34.99
Cons Discovered Through Extended Use
- Limited appeal for DTL vapers
- Leather finish shows wear with heavy handling
- Screen is difficult to read in bright sunlight, making it hard to check wattage or battery level on a bright day
- Airflow control could be more precise – the adjustment ring has wide steps between settings
- No temperature control mode
- Coil life adequate but not exceptional
- Limited customisation options beyond wattage adjustments
Who Should (And Shouldn't) Buy This
Perfect For:
- Ex-smokers wanting a simple, reliable MTL experience
- Current pod system users seeking better battery life
- Beginners who want room to experiment with different coils
- Commuters needing all-day battery and leak-proof design
- Vapers who prioritise simplicity over customisation
Not Suitable For:
- Cloud chasers wanting high-wattage DTL performance
- Temperature control enthusiasts
- Vapers who frequently switch between high/low nicotine
- Those wanting the latest tech features
- Users who prefer removable batteries
Comparison Insights: Coolfire Z60 vs Aspire PockeX
| Spec / Feature | Coolfire Z60 | Aspire PockeX |
|---|---|---|
| Battery Capacity | 2500 mAh, USB-C (~1.7 A charging) | 1500 mAh, internal battery |
| Wattage / Output Range | 6–60 W (adjustable) | Fixed / bypass output; 0.6 Ω coil rated 18–23 W |
| Resistance Range | ~0.2–3.5 Ω (supports low-ohm for restricted DTL) | Coils: 0.6 Ω or 1.2 Ω; no broad adjustable resistance |
| Tank / Pod / Coil Variety | Zlide Top tank; full Z-Coil line; multiple coil options | U-Tech / Nautilus-style coils; limited coil variety |
| Charging | USB-C, ~1.7 A | Older: micro-USB; newer may have USB-C; modest current |
| Size / Portability | Moderately compact; slightly bulkier due to larger battery | Slim / pen-style; very pocket-friendly (~117.7 × 19.7 mm) |
| User Features | Coil+ / Refresh modes; adjustable airflow; simple but flexible | Very simple; few modes; wattage fixed; coil-based performance |
| Ideal For | Heavier MTL vapers wanting battery life & versatility | Beginners; simplicity & portability; discreet, lower power use |
Ready to try the Innokin Coolfire Z60?
Available at Vape Offers for £34.99 in 8 colours
Order before 5 PM for next-day delivery (UK mainland)
Final Verdict and Rating
8.2/10
"A dependable workhorse that excels at what it's designed for"
After 30 days, would I recommend the Innokin Coolfire Z60? Absolutely, but with caveats.
This isn't a device that will wow you with cutting-edge features or impressive cloud production. What it will do is reliably deliver satisfying MTL vaping day after day, with minimal fuss and maximum convenience.
At £34.99 from Vape Offers, it represents excellent value. The build quality justifies the price, and the running costs (around £12–15 monthly for coils) are reasonable for the UK market.
The main trade-off: fantastic for MTL reliability, limited for DTL flexibility.
Would I buy it again? Yes, if I needed a reliable MTL device for daily use. It's become my go-to recommendation for friends switching from smoking or upgrading from basic pod systems.
The Innokin Coolfire Z60 isn't revolutionary. But it's exactly what many vapers need. A well-executed, dependable device that gets the fundamentals right.
Frequently Asked Questions
How long does the Coolfire Z60 battery actually last with real use?
For typical MTL vaping (150–200 puffs daily), expect 1.5–2 days between charges. Heavy users might need daily charging, while light users could stretch to 3 days.
Which coil lasted longest and provided best flavour?
The 0.8 Ω Z-coil consistently lasted 25–28 ml and delivered the best flavour with 50/50 salt e-liquids at 12–16 W.
Did the device develop any issues after heavy daily use?
No functional issues whatsoever. The leather finish showed minor wear, and the screen got scratched, but performance remained the same as day one.
Is the Zlide Top tank really leak-proof?
Yes, completely. I deliberately tested it sideways, upside down, and in temperature changes. The top airflow design eliminates traditional leak points.
What's the real cost of ownership per month?
Approximately £12–18 monthly for coils (based on 100 ml consumption). Plus electricity costs for charging (negligible).Total running cost under £20 monthly.
How does it compare to pod systems for convenience?
Less convenient for coil changes than disposable pods, but far superior for battery life and customisation. The trade-off is worth it for most users.
Disclaimer
This review is based on 30 days of personal use. Individual experiences may vary. This content contains affiliate links to Vape Offers. Vaping products contain nicotine, which is addictive. Must be 18+ to purchase.
