What Vape Specs Actually Mean (Watts, Ohms, Airflow & mAh)
If you've ever looked at a vape product page and thought "What does all this actually mean?", you're not alone. Vape specs like watts, ohms, airflow, and mAh can feel confusing — especially if you're new to vaping or upgrading your kit.
Watts (W): Power Output Explained
Wattage tells you how much power your vape device sends to the coil. More watts = more heat, more vapour, and usually stronger flavour.
Low Wattage (8–20W)
- Used for MTL vaping
- Lower vapour production
- Ideal for nic salts and 50/50 e-liquids
- Longer battery life
This range is common in pod kits and beginner-friendly devices.
Ohms (Ω): Coil Resistance Made Simple
Ohms measure the resistance of your coil. Resistance directly affects how much power is needed to heat the coil.
High Resistance Coils (1.0Ω and above)
- Used for MTL vaping
- Lower wattage
- More efficient with nicotine
- Best for nic salts and 50/50 e-liquids
Low Resistance / Sub-Ohm Coils (Below 1.0Ω)
- Used for DTL vaping
- Higher wattage required
- More vapour and flavour
- Designed for high VG e-liquids
You can browse compatible coils in the EcoSmok replacement coils collection.
Vaporesso Xros Corex 3.0 Pods
Next-gen COREX 3.0 pods with morph-mesh coils and Cumulus cotton for 40% better flavour, leak-resistant performance, and extended pod life. Compatible with all XROS devices for MTL & RDL vaping.
40% flavour boost
Easy top-fill
Secure magnetic fit
MTL to RDL vaping
Airflow: Tight vs Airy Draw
Airflow controls how much air mixes with vapour when you inhale. Most modern vape kits feature adjustable airflow.
Tight Airflow
- Cigarette-like draw
- Stronger throat hit
- More concentrated flavour
- Ideal for MTL vaping
Open Airflow
- Airy inhale
- Bigger clouds
- Smoother throat hit
- Ideal for DTL vaping
mAh: Battery Capacity Explained
mAh (milliampere-hour) measures how much charge your vape battery can hold. The higher the mAh, the longer your battery lasts between charges.
Typical Battery Sizes
- 400–600mAh – Small pod kits, light use
- 800–1200mAh – Most pod systems, all-day for MTL
- 1500–3000mAh – Vape pens and box mods
MTL vs DTL Specs at a Glance
| Vaping Style | Watts | Ohms | Airflow | Battery Need |
|---|---|---|---|---|
| MTL | 8–20W | 1.0Ω+ | Tight | Lower mAh |
| DTL | 40W+ | <1.0Ω | Open | Higher mAh |
Frequently Asked Questions
Not always. Too much wattage can burn coils. The best flavour comes from staying within your coil's recommended range.
No. Nic salts are designed for low wattage and high resistance coils. High wattage makes them harsh.
Higher mAh means longer battery life, but also a bigger device. Choose based on your usage and portability needs.
Master Your Vape Specs
Understanding watts, ohms, airflow, and mAh takes the guesswork out of vaping. Whether you're upgrading or just starting out, you can find reliable devices, coils, and e-liquids at EcoSmok.