The Eleaf iJust S Starter Kit is a tube-style, refillable sub-ohm starter kit built around a 3000mAh internal battery and a 4mL top-fill tank, typically selling for $49.99. It’s a simple, button-fired setup that prioritizes airflow, straightforward upkeep, and dependable daily performance over precise wattage control. It’s best for adult nicotine users who want an easy direct-lung routine, and a weaker fit for strict mouth-to-lung vapers or anyone chasing fine-tuned power settings.
Product Overview
| Device | Overall Score | Pros | Cons | Ideal For |
|---|---|---|---|---|
| Eleaf iJust S Starter Kit | 4.1/5 | Strong battery life for a tube kit; easy top-fill; roomy airflow | No wattage control; micro-USB charging; can run warm on the lowest-ohm coil | Adult nicotine users who want a simple, airy DL starter kit |
Final Verdict
The iJust S is still one of the more “grab it and go” sub-ohm pen kits: press the button, get an airy draw, and you’re basically off to the races. In our week of use, the best experience landed on the 0.3Ω coil for balance—solid vapor density and surprisingly clean flavor—while the 0.18Ω head pushed bigger output but also brought more heat and faster battery drain.
Who It’s For
- Adults who prefer direct-lung hits and open airflow
- People who want a simple, no-menu daily device
- Users who value battery capacity over pocketability
Who It’s Not For
- Mouth-to-lung purists who want a tighter draw
- Anyone who needs precise wattage or temperature control
- People who strongly prefer USB-C charging
How We Tested It
We tested the iJust S across commutes, work breaks, and evening sessions, rotating the included 0.18Ω, 0.3Ω, and 0.5Ω coils to compare Flavor, Throat Hit, Vapor Production, and Airflow/Draw. We tracked Battery Life and charge behavior through full cycles, watched for leaking or condensation for Leak Resistance, and noted day-to-day wear for Build Quality. Ease of Use and Portability were scored based on refill speed, pocket carry, and how often the kit demanded attention. Vape and nicotine products are for adults only; use isn’t recommended for minors, pregnant people, or people who don’t use nicotine, and all experience notes are subjective—not medical advice.
Our Testing Experience
The first thing I noticed is how “old-school simple” the power delivery feels—no screens, no modes, just direct output that hits harder right off a full charge and gradually calms down as the battery drops. The tank is easy: twist off the top, fill, and it’s back in rotation. With the 0.3Ω EC coil (our sample read 0.32Ω on a meter), the draw stayed smooth and airy, with a clean, accurate flavor that didn’t smear sweet notes into that generic “hot candy” vibe. The 0.5Ω coil (0.52Ω measured) tightened the warmth a bit and felt calmer for quick breaks. Marcus immediately gravitated to the 0.18Ω head (0.19Ω measured) for heavier pulls; it produced the biggest clouds, but it also ran warm after long chains, and the battery dipped faster.
Over repeated days, my full-charge time averaged 3h55m on a 1A USB setup, and the most consistent all-day pattern was the 0.3Ω coil with short sessions—good vapor, minimal fuss, and fewer “why is this getting hot?” moments. Jamal’s portability notes were consistent: it carries fine, but it’s not a tiny pen, and the micro-USB port feels dated.
What we liked
- Straightforward button-fired routine with predictable output
- Airy draw that stays smooth even with longer pulls
- Easy top-fill that doesn’t feel fussy in daily use
Who it is best for
- Adults who like DL pulls and don’t want menus
- Users moving up from basic pens into sub-ohm
- People who want a “one device” weekday kit
Where it falls short
- Heat and faster drain with the 0.18Ω head
- No wattage control to fine-tune intensity
- Micro-USB charging and a less pocket-friendly footprint
Pros & Cons
| Pros | Cons |
|---|---|
| Flavor stays clean on the 0.3Ω coil | No wattage control (direct output only) |
| Airflow feels open and smooth | Micro-USB instead of USB-C |
| Simple top-fill routine | Can run warm on long chain sessions (0.18Ω) |
| Big 3000mAh battery for a tube kit | Silicone airflow ring feels a bit “budget” |
| EC/ECL coil ecosystem is widely available | Output softens as battery level drops |
| Sturdy, straightforward build | Not the smallest option for pocket carry |
Details
- Price: $49.99
- Device type: refillable tube-style starter kit (battery + sub-ohm tank)
- Activation: button-fired, single-button operation
- Battery: 3000mAh internal
- Charging: micro-USB, 1A max; measured full charge time 3h55m (typical guidance is ~4 hours on 1A)
- Tank capacity: 4mL; practical “no-mess” fill level landed around 3.8mL before I felt like it was pushing it
- Coils included: EC 0.3Ω, EC 0.5Ω, ECL 0.18Ω (our readings: 0.32Ω / 0.52Ω / 0.19Ω)
- Size: 24.5mm diameter; 139.0mm height
Review Score
| Metric | Score | Remarks |
|---|---|---|
| Flavor | 4.0 | Best balance on the 0.3Ω coil; stays clear without getting muddy. |
| Throat Hit | 4.2 | Satisfying on DL pulls; intensity varies with coil choice and battery level. |
| Vapor Production | 4.3 | Strong output for a simple tube kit, especially on the 0.18Ω head. |
| Airflow/Draw | 4.1 | Open, smooth draw; silicone-ring adjustment works but feels basic. |
| Battery Life | 4.2 | 3000mAh gives real day-to-day endurance for typical intermittent use. |
| Leak Resistance | 3.8 | Mostly clean if you don’t overfill; can collect light condensation with heavy use. |
| Build Quality | 4.1 | Solid, no-nonsense construction; threads and button feel dependable. |
| Ease of Use | 4.4 | Top-fill, single button, minimal learning curve. |
| Portability | 3.9 | Carries fine, but it’s thicker/longer than modern compact kits. |
| Overall | 4.1 | A practical DL starter kit that trades precision controls for simplicity and endurance. |
How to Choose the Eleaf iJust S Starter Kit?
Buy the iJust S if you want a simple, button-fired kit with open airflow and you don’t care about setting an exact wattage. It’s a better match for direct-lung users running lower-nicotine freebase liquids than for tight-draw, high-nicotine routines. Expect the intensity to shift as the battery drains—that’s the trade-off of direct output. If you prioritize smaller carry size, modern charging, or precise tuning, you’ll likely feel boxed in.
If you want a similar “simple DL pen” vibe with a more modern feel, consider the SMOK Vape Pen V2. If you want a calmer, tighter, more beginner-leaning draw style, the Innokin Endura series is often a better fit.
Limitations
The iJust S succeeds by being uncomplicated, but that same simplicity creates clear trade-offs in daily use.
- No wattage controls, so fine-tuning is limited to coil choice and airflow
- Micro-USB charging feels dated, and charge times aren’t quick
- The 0.18Ω coil can run warm in long sessions, especially for heavy users
Eleaf iJust S vs. Alternatives
Why choose these models
- You want a proven, straightforward DL starter kit with a large internal battery
- You prefer top-fill convenience and a simple single-button routine
- You’re okay trading precise tuning for fewer points of failure
Alternatives to consider
- SMOK Vape Pen V2: similar category, strong output, “simple pen” mindset
- Vaporesso Veco line: typically smoother airflow feel and modern kit options
- GeekVape Aegis Boost series: for users who want more control and rugged carry
Pro Tips for Eleaf iJust S Starter Kit
- Start with the 0.3Ω coil if you want the most balanced heat-to-flavor experience.
- Prime the coil patiently (a few drops in the cotton + a full soak) before the first use.
- Keep fills conservative—leave headroom to avoid forcing liquid into the chimney.
- If the draw feels “wet,” wipe the drip tip and check for condensation under the top cap.
- Use a 1A USB power source for steadier charging behavior.
- For longer sessions, open airflow slightly to reduce heat buildup.
- When flavor starts flattening, don’t chase it with longer pulls—swap the coil instead.
- Keep the silicone airflow ring clean; pocket lint can make it feel sticky or inconsistent.
- Store upright when possible right after refills to reduce seepage during pressure changes.
- If you pocket-carry, lock it off between sessions to avoid accidental firing.
FAQs
Does the iJust S work better for MTL or DL?
It’s naturally a DL-leaning kit because the airflow is fairly open and the included coils are sub-ohm focused.
Which included coil is the best daily option?
For most people, the 0.3Ω coil is the easiest “set it and forget it” middle ground for flavor, heat, and battery life.
Why does it feel stronger on a fresh charge?
It uses direct output, so the power curve is higher near a full battery and gradually softens as the battery level drops.
About the Author: Chris Miller
