Geek Vape Z Sub Ohm 5 Tank Review – Features, Coils & 5.5 ml Glass

Available for only £19.95 the Geek Vape Z Sub Ohm 5 Tank is the latest upgrade in Geek Vape’s legendary Zeus (Z) tank line up. Built for direct-to-lung (DTL) vaping, this tank combines leak-resistant top airflow, larger e-liquid capacity, and next-generation mesh coils for a powerful, flavour-rich experience.

Designed to outperform its predecessors, the Z Sub Ohm 5 Tank introduces a optional 5.5 ml glass, making it ideal for high-wattage vapers who want fewer refills and longer sessions.

Whether you’re upgrading from an older Zeus tank or searching for a high-performance sub-ohm tank, the Geek Vape Z 5 delivers big clouds, intense flavour, and everyday reliability.

Key Features of the Geek Vape Z Sub Ohm 5 Tank

Large E-Liquid Capacity – 5.5 ml Optional

One of the biggest upgrades is its large juice capacity.
The Z Sub Ohm 5 comes with a 2ml glass as standard and supports a 5.5 ml bubble glass for even longer vaping between refills.

This makes it perfect for:

• High-VG e-liquids
• High-wattage coil vaping
• Long sessions without constant topping up

Leak-Resistant Top Airflow System

Geek Vape continues its proven top airflow design, positioning airflow intake above the juice reservoir to minimise leaking and flooding.

Benefits include:

• Reduced mess and coil flooding
• Smoother, more controlled draw
• Adjustable airflow for airy or slightly restricted DTL

This design makes the Z Sub Ohm 5 one of the most leak-resistant sub-ohm tanks on the market.

Easy Top Push-Fill / Slide-Open Cap

Refilling is fast and clean thanks to the top push-fill or slide-open system.
Simply slide the top cap open to access the fill port — no unscrewing, no mess.

Perfect for:

• On-the-go refills
• Thick high-VG e-liquids
• Preventing spills

Durable Construction & 810 Drip Tip

The tank features:

• Stainless steel body
• Pyrex glass
• Standard 510 connection
• Replaceable 810 wide-bore drip tip

It pairs well with most high-wattage mods and feels solid and premium in hand.

All Compatible Coils – Z Series & Z XM Boost

The Geek Vape Z Sub Ohm 5 Tank supports multiple coil options, giving vapers flexibility across wattage levels and vaping styles.

Z XM Boost Coils (Optimised for the Z 5)

These upgraded mesh coils deliver:

• Stronger flavour
• Better vapour production
• Longer coil life

Available XM Boost coil options:

• Z0.15Ω XM – 70–85 W
  Maximum flavour and dense clouds
• Z0.2Ω XM – 70–80 W
  Balanced performance and smooth vapour
• Z0.4Ω XM – 50–60 W
  Cooler vape, lower wattage, better battery efficiency

Additional Z Series Coil Compatibility

Beyond the included XM coils, the tank also supports other Geek Vape Z Series mesh coils, including:

• Z0.15Ω Mesh – 80–90 W
• Z0.25Ω Mesh – 45–57 W

This wide compatibility makes the Z Sub Ohm 5 Tank highly versatile and future-proof.

Push-Fit Coil Installation

All Z coils use a press-fit design — no threading required.

Benefits:

• Fast coil swaps
• No tools needed
• Reduced leaking
• Cleaner maintenance

Performance & Vaping Experience

The Z Sub Ohm 5 Tank is built for direct-to-lung vaping using high-VG e-liquids (70% VG or higher).

Expect:

• Thick, dense vapour
• Strong flavour clarity
• Smooth airflow
• Consistent performance at high wattage

With the larger glass and XM Boost coils, it delivers longer sessions, better flavour retention, and extended coil lifespan.

Design, Size & Compatibility

• Diameter: ~29 mm
• Height: ~56 mm
• Connection: 510
• Drip Tip: 810

The wide base balances well on modern mods and accommodates high-power setups without overhang on larger devices.

What’s in the Box?

A typical package includes:

• 1 × Geek Vape Z Sub Ohm 5 Tank (5.5 mL)
• 1 × Z0.2Ω XM Boost Coil (pre-installed)
• 1 × Z0.4Ω XM Boost Coil
• 1 × Spare Glass Tube
• 1 × Coil Tool
• User Manual

Optional 5.5 ml glass and additional coil options are sold separately depending on region.

Who Is the Geek Vape Z Sub Ohm 5 Tank For?

This tank is ideal for vapers who want:

• A high-performance sub-ohm tank
• Large 5.5 ml capacity
• Leak-resistant top airflow
• Easy refilling and coil changes
• Multiple coil options
• Powerful DTL performance

Frequently Asked Questions (FAQ)

Which coils are compatible with the Geek Vape Z Sub Ohm 5 Tank?

The tank supports Geek Vape Z Series and Z XM Boost coils, including:

• Z0.15Ω XM
• Z0.2Ω XM
• Z0.4Ω XM
• Z0.15Ω Mesh
• Z0.25Ω Mesh

What wattage should I vape the Z XM coils at?

Recommended wattages:

• Z0.15Ω XM: 70–85 W
• Z0.2Ω XM: 70–80 W
• Z0.4Ω XM: 50–60 W

Always start at the low end and increase gradually.

Does the Geek Vape Z Sub Ohm 5 Tank come with large glass?

No. It includes a 2ml glass as standard and supports an optional 5.5 ml bubble glass for extended capacity.

Is the Z Sub Ohm 5 Tank leak-proof?

It uses a top airflow design that significantly reduces leaking compared to bottom-airflow tanks. While no tank is 100% leak-proof, this design is among the most reliable available.

What e-liquid works best with this tank?

Here are 5 great e-liquid recommendations that are well suited for use with a sub-ohm tank like the Geek Vape Z Sub Ohm 5 — meaning they deliver rich flavour, smooth inhales, and plenty of vapour when paired with high-wattage coils and a high-VG formula (typically 70% VG or higher) — ideal for direct-to-lung (DTL) vaping.

1. Zeus Juice – Dimpleberry ICE 120ml Shortfill

A popular high-VG shortfill with big flavour and plenty of vapour. With a generous 120ml size and space for nicotine shots, this juice is ideal for daily vaping in sub-ohm tanks like the Z Sub Ohm 5.

2. Pod Salt Nexus – Strawberry Watermelon Kiwi 120ml Shortfill

A fruity blend that pairs juicy strawberry, refreshing watermelon, and kiwi for a bold tropical flavour. Shortfill format lets you add nic shots to suit your preferred strength.

3. Seriously Fruity – Blue Razz Berry 120ml Shortfill

This high-VG shortfill is perfect for fruity flavour lovers — offering sweet raspberry with a twist of blue fruit fun. Great choice for cloud chasers with mesh coils.

4. Mobster – Sweet Fruity Mango 120ml Shortfill

A summer-style mango blend that produces thick, smooth vapour with vibrant tropical flavour — excellent for sub-ohm vaping at mid to high wattages.

5. Ultimate Puff Custard – Whipped Vanilla 120ml Shortfill

For dessert lovers, this creamy custard with vanilla notes is a smooth, flavourful option that works superbly with high-VG setups and mesh coils in tanks like the Z Sub Ohm 5.

Tips for Choosing E-Liquids for Sub-Ohm Vaping

• Look for high VG ratios (70% VG or more): Thick VG helps produce smooth vapour and big clouds in sub-ohm tanks.
• Use freebase nicotine or zero-nicotine shortfills: Nic strength of 3 mg or 6 mg is commonly preferred in DTL setups to avoid harsh throat hit.
• Avoid nicotine salts for sub-ohm: Nic salts are generally intended for mouth-to-lung devices, not high-wattage sub-ohm tanks.