Price (USD)
Boundless Terp Pen edgeBoundless Terp Pen
$25
PAX 3
$250
Boundless Terp Pen is typically around $225 lower.
Vaporizer Comparison
Side-by-side specs, pricing context, and clear decision guidance.
Boundless Terp Pen
Boundless Technology $25
PAX 3
PAX Labs $250
Boundless Terp Pen and PAX 3 are both concentrates / portable vaporizers, but they target different priorities. Boundless Terp Pen is usually the lower-cost pick at $25, around $225 below PAX 3. Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
22
Different Specs
20
Shared Specs
2
Overall Overlap
9%
Shared Traits
A quick snapshot of the specs people usually care about first.
Boundless Terp Pen
$25
PAX 3
$250
Boundless Terp Pen is typically around $225 lower.
Boundless Terp Pen
Ceramic & Stainless Steel Coil
PAX 3
Conduction
Heating style differs, which can impact flavor and extraction behavior.
Top specs where these two devices diverge.
Price (USD)
Boundless Terp Pen
$25
PAX 3
$250
Heating Type
Boundless Terp Pen
Ceramic & Stainless Steel Coil
PAX 3
Conduction
Temperature Range
Boundless Terp Pen
N/A
PAX 3
182°C - 215°C (260°F - 420°F)
Chamber Capacity
Boundless Terp Pen
N/A
PAX 3
<0.35 grams
Battery Type
Boundless Terp Pen
Internal
PAX 3
Internal 18650
Battery Capacity
Boundless Terp Pen
300mAh
PAX 3
3500mAh
Charging
Boundless Terp Pen
Micro USB
PAX 3
Proprietary Dock
Dimensions
Boundless Terp Pen
13x134x13mm
PAX 3
98mm x 31mm x 22mm
Power Adjustment
Boundless Terp Pen
Draw-Activated
PAX 3
Modular - 4 stages
Chamber Material
Boundless Terp Pen
Ceramic
PAX 3
Stainless Steel
Direct comparison of every spec from each device profile.
| Specification | Boundless Terp Pen | PAX 3 |
|---|---|---|
| Price (USD) | $25 | $250 |
| Device Type | Portable | Portable |
| Heating Type | Ceramic & Stainless Steel Coil | Conduction |
| Heat Up Time | — | <30 seconds |
| Temperature Range | N/A | 182°C - 215°C (260°F - 420°F) |
| Chamber Capacity | N/A | <0.35 grams |
| Battery Type | Internal | Internal 18650 |
| Battery Capacity | 300mAh | 3500mAh |
| Battery Life | — | ~90 minutes |
| Charging | Micro USB | Proprietary Dock |
| Charge Time | — | ~90 minutes |
| Bluetooth / App | — | Yes |
| Dimensions | 13x134x13mm | 98mm x 31mm x 22mm |
| Weight | — | ~93 grams |
| Power Adjustment | Draw-Activated | Modular - 4 stages |
| Chamber Material | Ceramic | Stainless Steel |
| Concentrate Support | Yes | Yes |
| Brand | Boundless Technology | PAX Labs |
| Country of Manufacture | China | — |
| Release Date | — | 2016 |
| Session Style | On-Demand | — |
| Warranty | 3 years | 10 years |
The biggest practical difference is price tier: the Boundless Terp Pen sits at $25 while the PAX 3 is $250, a gap of about $225 that puts them in different buying brackets.
Boundless Terp Pen is the cheaper option at $25 compared with $250 for the PAX 3, about $225 less. Live retailer pricing can shift, so confirm before buying.
Boundless Terp Pen uses ceramic & stainless steel coil heating, while the PAX 3 uses conduction. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Boundless Terp Pen controls heat with draw-activated, while the PAX 3 uses modular - 4 stages. Both let you change temperature, just with different levels of precision.
Boundless Terp Pen lists a chamber capacity of N/A; the PAX 3 lists <0.35 grams.
Both devices support concentrate use, typically via an included or aftermarket pad or insert. Check the manual for the recommended approach for each.
Across the 22 specs we line up, they share 2 and differ on 20, an overlap of about 9%. The differences are concentrated in the areas the spec table highlights with a marker.
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.