Price (USD)
G Pen Pro edgeBoundless Tera V3
$155
G Pen Pro
$90
G Pen Pro is typically around $65 lower.
Vaporizer Comparison
Boundless Tera V3 vs G Pen Pro
Side-by-side specs, pricing context, and clear decision guidance.
Boundless Tera V3
Boundless Technology $155
VS
G Pen Pro
Grenco Science $90
Editorial Summary
Boundless Tera V3 and G Pen Pro are both portable / convection vaporizers, but they target different priorities. G Pen Pro is usually the lower-cost pick at $90, around $65 below Boundless Tera V3. Heat-up speed is broadly similar between the two.
Specs Compared
20
Different Specs
16
Shared Specs
4
Overall Overlap
20%
Shared Traits
Portable Convection Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
Close callBoundless Tera V3
20 - 30 Seconds
G Pen Pro
~30 seconds
Both devices are in a similar heat-up range.
Heating Style
Close callBoundless Tera V3
Convection
G Pen Pro
Convection
Both devices use a similar heating approach.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
Boundless Tera V3
$155
G Pen Pro
$90
Heat Up Time
Boundless Tera V3
20 - 30 Seconds
G Pen Pro
~30 seconds
Temperature Range
Boundless Tera V3
60°C-260°C
G Pen Pro
190°C - 220°C (375°F - 428°F)
Chamber Capacity
Boundless Tera V3
0.6g
G Pen Pro
~0.25 grams
Battery Type
Boundless Tera V3
Dual 18650
G Pen Pro
Internal
Battery Capacity
Boundless Tera V3
5000mAh
G Pen Pro
2200mAh
Charge Time
Boundless Tera V3
~2.5 hours
G Pen Pro
<3 hours
Power Adjustment
Boundless Tera V3
Digital
G Pen Pro
Modular - 3 Stages
Chamber Material
Boundless Tera V3
Stainless Steel
G Pen Pro
Ceramic
Brand
Boundless Tera V3
Boundless Technology
G Pen Pro
Grenco Science
Choose Boundless Tera V3 if...
- Your usage leans toward battery swap and concentrates sessions.
- You prefer Boundless Tera V3's overall feature mix and form factor.
- You value how the Boundless Tera V3 balances size, controls, and everyday practicality.
Choose G Pen Pro if...
- You want the lower listed entry price ($90 vs $155).
- Your usage leans toward budget sessions.
- You prefer G Pen Pro's overall feature mix and form factor.
Spec Comparison Table
Direct comparison of every spec from each device profile.
16 differ 4 shared
| Specification | Boundless Tera V3 | G Pen Pro |
|---|---|---|
| Price (USD) | $155 | $90 |
| Device Type | Portable | Portable |
| Heating Type | Convection | Convection |
| Heat Up Time | 20 - 30 Seconds | ~30 seconds |
| Temperature Range | 60°C-260°C | 190°C - 220°C (375°F - 428°F) |
| Chamber Capacity | 0.6g | ~0.25 grams |
| Battery Type | Dual 18650 | Internal |
| Battery Capacity | 5000mAh | 2200mAh |
| Charging | Micro-USB | Micro-USB |
| Charge Time | ~2.5 hours | <3 hours |
| Dimensions | 120x40x25mm | — |
| Weight | 279g | — |
| Power Adjustment | Digital | Modular - 3 Stages |
| Chamber Material | Stainless Steel | Ceramic |
| Concentrate Support | Yes | — |
| Brand | Boundless Technology | Grenco Science |
| Country of Manufacture | China | — |
| Release Date | 2018 | 2017 |
| Session Style | Session | Session |
| Warranty | 3 years | 1 year |
Comparison FAQs
What is the biggest difference between the Boundless Tera V3 and the G Pen Pro?
There's no single headline gap. The differences are spread across 16 smaller spec rows rather than concentrated in one place. The spec table below marks each row that differs.
Which is cheaper, the Boundless Tera V3 or the G Pen Pro?
G Pen Pro is the cheaper option at $90 compared with $155 for the Boundless Tera V3, about $65 less. Live retailer pricing can shift, so confirm before buying.
Which heats up faster, the Boundless Tera V3 or the G Pen Pro?
Boundless Tera V3 reaches session-ready temperature in 20 - 30 Seconds, while the G Pen Pro takes ~30 seconds. That's roughly 5 seconds quicker on the Boundless Tera V3, which is useful if you want shorter, on-demand sessions.
Does the Boundless Tera V3 or the G Pen Pro hold more flower?
Boundless Tera V3 has the larger chamber at 0.6g, versus ~0.25 grams on the G Pen Pro. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.
Can I swap the batteries on the Boundless Tera V3 or the G Pen Pro?
Boundless Tera V3 uses dual 18650, so you can carry spares for back-to-back days. The G Pen Pro has a built-in battery you can't swap on the go.
Can I set custom temperatures on the Boundless Tera V3 or the G Pen Pro?
Boundless Tera V3 controls heat with digital, while the G Pen Pro uses modular - 3 stages. Boundless Tera V3 gives you finer per-degree control.
Which charges faster, the Boundless Tera V3 or the G Pen Pro?
Boundless Tera V3 fully charges in ~2.5 hours, ahead of <3 hours on the G Pen Pro.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.