Home › Reviews › Nex 4
How to Source Air Bar Nex 4: Inventory Replenishment
Published 2026 · VapeWholesaleHub trade desk

Inventory replenishment discipline is what separates profitable Nex 4 distribution from busy distribution.
The Nex 4 has settled into a stable position in the range, which makes inventory replenishment the natural next question for distributors.
In practice the decision comes down to three numbers: unit cost, freight per unit and the realistic sell through rate for Nex 4.
Why inventory replenishment matters on the Nex 4
Reorder points should reflect lead time plus safety stock, not intuition.
Documentation is not paperwork for its own sake; on inventory replenishment it is the difference between a clean clearance and a delayed one.
Fast movers deserve shorter review cycles than long tail flavours.
Reference specification
| Item | Value |
|---|---|
| Model | Nex 4 |
| Brand | Air Bar |
| Category | Reviews |
| Battery | 800 mAh |
| Output range | 5-30 W |
| Capacity | 2.0 ml |
| Charging | USB-C fast charge |
| Coil options | 0.8 / 1.2 ohm |
| Carton quantity | 100 units |
Writing off slow stock early frees working capital.
Practical notes for buyers
Seasonality interacts with inventory replenishment more than most forecasts allow for, so a rolling review beats an annual one.
A written internal standard for inventory replenishment makes onboarding new account managers far quicker and reduces avoidable errors.
Checklist
- Retain one sealed sample carton from every batch for reference.
- Confirm the exact configuration in writing before the deposit is paid.
- Verify that artwork matches the approved compliance template.
- Log sell through by account for the first eight weeks.
- Record the arrival condition with photographs on the day of delivery.
- Check carton quantities against the commercial invoice line by line.
Commercial terms
Lead times are a function of component availability as much as factory capacity, so buffers should reflect both.
Commercial terms are usually agreed in three parts: a deposit on confirmation, a balance before shipment and a stated validity window.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (75 units) | Tier 1 | 7-12 days |
| Pallet (588 units) | Tier 2 | 14-21 days |
| Container (16630 units) | Tier 3 | 7-12 days |
Frequently asked questions
How often should Nex 4 stock be reviewed?
Weekly for fast movers, monthly for the full range, with a quarterly range review.
Can several models be mixed in one shipment?
Yes, mixing models and flavours within a carton or pallet is common and usually helps first time buyers test demand.
Can packaging be adjusted for our market?
Artwork localisation is straightforward; structural changes need larger volumes and a longer lead time.
What happens if a batch fails inspection?
The agreed procedure normally covers replacement of affected units or credit against the next order, documented before shipment.
Final word
Start with one change, measure it over a quarter, then decide whether it deserves to become policy.
Trade enquiry
Quotations, samples and artwork files are available on request. Please state model, quantity per SKU, destination and target delivery window.