Price (USD)
Boundless Tera V3 edgeBoundless Tera V3
$155
PAX FOUR
$250
Boundless Tera V3 is typically around $95 lower.
Vaporizer Comparison
Boundless Tera V3 vs PAX FOUR
Side-by-side specs, pricing context, and clear decision guidance.
Boundless Tera V3
Boundless Technology $155
VS
PAX FOUR
PAX Labs $250
Editorial Summary
Boundless Tera V3 and PAX FOUR are both portable / electronic vaporizers, but they target different priorities. Boundless Tera V3 is usually the lower-cost pick at $155, around $95 below PAX FOUR. Boundless Tera V3 has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
24
Different Specs
21
Shared Specs
3
Overall Overlap
13%
Shared Traits
Portable Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
Boundless Tera V3 edgeBoundless Tera V3
20 - 30 Seconds
PAX FOUR
55-70 seconds
Boundless Tera V3 has the quicker listed heat-up profile.
Weight
PAX FOUR edgeBoundless Tera V3
279g
PAX FOUR
125 grams
PAX FOUR is the lighter listed unit.
Heating Style
Close callBoundless Tera V3
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)
Boundless Tera V3
$155
PAX FOUR
$250
Heating Type
Boundless Tera V3
Convection
PAX FOUR
Hybrid (conduction and convection)
Heat Up Time
Boundless Tera V3
20 - 30 Seconds
PAX FOUR
55-70 seconds
Temperature Range
Boundless Tera V3
40°C-220°C (260°C concentrate mode)
PAX FOUR
190-220°C (374-428°F)
Chamber Capacity
Boundless Tera V3
0.6g
PAX FOUR
~0.3g
Battery Type
Boundless Tera V3
Dual 18650
PAX FOUR
Internal lithium-ion
Battery Capacity
Boundless Tera V3
5000mAh
PAX FOUR
2800mAh
Charging
Boundless Tera V3
Micro-USB
PAX FOUR
USB-C
Charge Time
Boundless Tera V3
~2.5 hours
PAX FOUR
~90 minutes
Dimensions
Boundless Tera V3
120x40x25mm
PAX FOUR
108 x 36 x 29mm
Choose Boundless Tera V3 if...
- You want the lower listed entry price ($155 vs $250).
- You care about faster heat-up time for quicker sessions.
- You prefer a convection heating profile.
- Your usage leans toward battery swap and convection sessions.
Typical price
$155
Sold by The Stash Shack
Choose PAX FOUR if...
- You want the lighter unit for carrying and travel.
- You prefer a hybrid (conduction and convection) heating profile.
- Your usage leans toward hybrid and discrete sessions.
Typical price
$250
Sold by The Stash Shack
Prices are read automatically from retailer pages; 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.
21 differ 3 shared
| Specification | Boundless Tera V3 | PAX FOUR |
|---|---|---|
| Price (USD) | $155 | $250 |
| Device Type | Portable | Portable |
| Heating Type | Convection | Hybrid (conduction and convection) |
| Heat Up Time | 20 - 30 Seconds | 55-70 seconds |
| Temperature Range | 40°C-220°C (260°C concentrate mode) | 190-220°C (374-428°F) |
| Chamber Capacity | 0.6g | ~0.3g |
| Battery Type | Dual 18650 | Internal lithium-ion |
| Battery Capacity | 5000mAh | 2800mAh |
| Battery Life | — | Up to 5 sessions, about 50 minutes of run time |
| Charging | Micro-USB | USB-C |
| Charge Time | ~2.5 hours | ~90 minutes |
| Dimensions | 120x40x25mm | 108 x 36 x 29mm |
| Weight | 279g | 125 grams |
| Power Adjustment | Digital | Four preset heat modes (purple, green, yellow, orange) |
| Chamber Material | Stainless Steel | Stainless steel |
| Concentrate Support | Yes | No (not compatible with the PAX Concentrate Insert) |
| Brand | Boundless Technology | PAX Labs |
| Adjustable Airflow | — | No (flat and raised mouthpieces change the draw) |
| Country of Manufacture | China | — |
| Display Type | — | LED petals |
| Manufacturer | — | PAX Labs, Inc (model X410) |
| Release Date | 2018 | 2026 |
| Session Style | Session | Session |
| Warranty | 3 years | 2 years, plus 1 year when registered within 30 days |
Comparison FAQs
What is the biggest difference between the Boundless Tera V3 and the PAX FOUR?
The biggest practical difference is heating approach: Boundless Tera V3 runs convection while PAX FOUR runs hybrid (conduction and convection). That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
Which is cheaper, the Boundless Tera V3 or the PAX FOUR?
Boundless Tera V3 is the cheaper option at $155 compared with $250 for the PAX FOUR, about $95 less. Live retailer pricing can shift, so confirm before buying.
Which heats up faster, the Boundless Tera V3 or the PAX FOUR?
Boundless Tera V3 reaches session-ready temperature in 20 - 30 Seconds, while the PAX FOUR takes 55-70 seconds. That's roughly 38 seconds quicker on the Boundless Tera V3, which is useful if you want shorter, on-demand sessions.
What's the difference in heating between the Boundless Tera V3 and the PAX FOUR?
Boundless Tera V3 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 Boundless Tera V3 or the PAX FOUR hold more flower?
Boundless Tera V3 has the larger chamber at 0.6g, versus ~0.3g on the PAX FOUR. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
Which is lighter, the Boundless Tera V3 or the PAX FOUR?
PAX FOUR is the lighter unit at 125 grams, around 154g less than the Boundless Tera V3 at 279g. The lighter device is easier to carry and pocket day-to-day.
Can I swap the batteries on the Boundless Tera V3 or the PAX FOUR?
Boundless Tera V3 uses dual 18650, so you can carry spares for back-to-back days. The PAX FOUR has a built-in battery you can't swap on the go.
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