Price (USD)
Dynavap The Unidyn edgeDynavap The Unidyn
$129
PAX FOUR
$250
Dynavap The Unidyn is typically around $121 lower.
Vaporizer Comparison
Dynavap The Unidyn vs PAX FOUR
Side-by-side specs, pricing context, and clear decision guidance.
Dynavap The Unidyn
DynaVap from $114.99
VS
PAX FOUR
PAX Labs $250
Editorial Summary
Dynavap The Unidyn and PAX FOUR are both portable vaporizers, but they target different priorities. Dynavap The Unidyn is usually the lower-cost pick at $129, around $121 below PAX FOUR. Dynavap The Unidyn has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
25
Different Specs
24
Shared Specs
1
Overall Overlap
4%
Shared Traits
Portable
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
Dynavap The Unidyn edgeDynavap The Unidyn
Depending on the heat source, ~30 seconds
PAX FOUR
55-70 seconds
Dynavap The Unidyn has the quicker listed heat-up profile.
Weight
Dynavap The Unidyn edgeDynavap The Unidyn
14g
PAX FOUR
125 grams
Dynavap The Unidyn is the lighter listed unit.
Heating Style
Close callDynavap The Unidyn
Convection
PAX FOUR
Hybrid (conduction and convection)
Heating style differs, which can impact flavor and extraction behavior.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
Dynavap The Unidyn
$129
PAX FOUR
$250
Heating Type
Dynavap The Unidyn
Convection
PAX FOUR
Hybrid (conduction and convection)
Heat Up Time
Dynavap The Unidyn
Depending on the heat source, ~30 seconds
PAX FOUR
55-70 seconds
Temperature Range
Dynavap The Unidyn
N/A
PAX FOUR
190-220°C (374-428°F)
Chamber Capacity
Dynavap The Unidyn
~0.1g
PAX FOUR
~0.3g
Battery Type
Dynavap The Unidyn
None
PAX FOUR
Internal lithium-ion
Battery Capacity
Dynavap The Unidyn
N/A
PAX FOUR
2800mAh
Battery Life
Dynavap The Unidyn
N/A
PAX FOUR
Up to 5 sessions, about 50 minutes of run time
Charging
Dynavap The Unidyn
N/A
PAX FOUR
USB-C
Charge Time
Dynavap The Unidyn
N/A
PAX FOUR
~90 minutes
Choose Dynavap The Unidyn if...
- You want the lower listed entry price ($129 vs $250).
- You care about faster heat-up time for quicker sessions.
- You want the lighter unit for carrying and travel.
- You prefer a convection heating profile.
Lowest price
$114.99
at Vapor.com
Choose PAX FOUR if...
- You prefer a hybrid (conduction and convection) heating profile.
- Your usage leans toward hybrid and electronic sessions.
- You prefer PAX FOUR's overall feature mix and form factor.
Typical price
$250
Sold by The Stash Shack
Prices are read automatically from retailer pages and were last checked Aug 27, 2026; confirm the price at checkout. Some links are affiliate links, which support Thermal Extractions at no extra cost to you.
Spec Comparison Table
Direct comparison of every spec from each device profile.
24 differ 1 shared
| Specification | Dynavap The Unidyn | PAX FOUR |
|---|---|---|
| Price (USD) | $129 | $250 |
| Device Type | Portable | Portable |
| Heating Type | Convection | Hybrid (conduction and convection) |
| Heat Up Time | Depending on the heat source, ~30 seconds | 55-70 seconds |
| Temperature Range | N/A | 190-220°C (374-428°F) |
| Chamber Capacity | ~0.1g | ~0.3g |
| Battery Type | None | Internal lithium-ion |
| Battery Capacity | N/A | 2800mAh |
| Battery Life | N/A | Up to 5 sessions, about 50 minutes of run time |
| Charging | N/A | USB-C |
| Charge Time | N/A | ~90 minutes |
| Dimensions | 109x11x11mm | 108 x 36 x 29mm |
| Weight | 14g | 125 grams |
| Power Adjustment | Manual | Four preset heat modes (purple, green, yellow, orange) |
| Chamber Material | Titanium | Stainless steel |
| Concentrate Support | — | No (not compatible with the PAX Concentrate Insert) |
| Brand | DynaVap | PAX Labs |
| Adjustable Airflow | Yes | No (flat and raised mouthpieces change the draw) |
| Body Material | Titanium, stainless steel & high heat silicone seals | — |
| Country of Manufacture | United States (USA) | — |
| Display Type | — | LED petals |
| Manufacturer | — | PAX Labs, Inc (model X410) |
| Release Date | 2025 | 2026 |
| Session Style | — | Session |
| Warranty | Lifetime | 2 years, plus 1 year when registered within 30 days |
Comparison FAQs
What is the biggest difference between the Dynavap The Unidyn and the PAX FOUR?
The biggest practical difference is price tier: the Dynavap The Unidyn sits at $129 while the PAX FOUR is $250, a gap of about $121 that puts them in different buying brackets.
Which is cheaper, the Dynavap The Unidyn or the PAX FOUR?
Dynavap The Unidyn is the cheaper option at $129 compared with $250 for the PAX FOUR, about $121 less. Live retailer pricing can shift, so confirm before buying.
Which heats up faster, the Dynavap The Unidyn or the PAX FOUR?
Dynavap The Unidyn reaches session-ready temperature in Depending on the heat source, ~30 seconds, while the PAX FOUR takes 55-70 seconds. That's roughly 33 seconds quicker on the Dynavap The Unidyn, which is useful if you want shorter, on-demand sessions.
What's the difference in heating between the Dynavap The Unidyn and the PAX FOUR?
Dynavap The Unidyn uses convection heating, while the PAX FOUR uses hybrid (conduction and convection). Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Does the Dynavap The Unidyn or the PAX FOUR hold more flower?
PAX FOUR has the larger chamber at ~0.3g, versus ~0.1g on the Dynavap The Unidyn. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
Which is lighter, the Dynavap The Unidyn or the PAX FOUR?
Dynavap The Unidyn is the lighter unit at 14g, around 111g less than the PAX FOUR at 125 grams. The lighter device is easier to carry and pocket day-to-day.
Can I set custom temperatures on the Dynavap The Unidyn or the PAX FOUR?
Dynavap The Unidyn controls heat with manual, while the PAX FOUR uses four preset heat modes (purple, green, yellow, orange). Both let you change temperature, just with different levels of precision.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.