Price (USD)
Boundless Terp Pen XL edgeBoundless Terp Pen XL
$55
G Pen Hyer
$150
Boundless Terp Pen XL is typically around $95 lower.
Vaporizer Comparison
Boundless Terp Pen XL vs G Pen Hyer
Side-by-side specs, pricing context, and clear decision guidance.
Boundless Terp Pen XL
Boundless Technology from $59
VS
G Pen Hyer
Grenco Science from $249.99
Editorial Summary
Boundless Terp Pen XL and G Pen Hyer are both portable / concentrates vaporizers, but they target different priorities. Boundless Terp Pen XL is usually the lower-cost pick at $55, around $95 below G Pen Hyer. Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
22
Different Specs
19
Shared Specs
3
Overall Overlap
14%
Shared Traits
Portable Concentrates Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heating Style
Close callBoundless Terp Pen XL
Conduction
G Pen Hyer
Conduction
Both devices use a similar heating approach.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
Boundless Terp Pen XL
$55
G Pen Hyer
$150
Temperature Range
Boundless Terp Pen XL
698°F - 779°F (370°C - 415°C)
G Pen Hyer
180°C - 220°C dry herb, 250°C - 450°C concentrate
Battery Type
Boundless Terp Pen XL
Internal
G Pen Hyer
External Battery Pack
Battery Capacity
Boundless Terp Pen XL
320mAh
G Pen Hyer
6000mAh
Charging
Boundless Terp Pen XL
Micro USB
G Pen Hyer
USB-C
Charge Time
Boundless Terp Pen XL
~45 minutes
G Pen Hyer
2.5 - 3 hours
Power Adjustment
Boundless Terp Pen XL
Modular - 3 stage
G Pen Hyer
Digital Control - 5 Stage Modular
Chamber Material
Boundless Terp Pen XL
Ceramic
G Pen Hyer
Ceramic (dry herb tank), Quartz (concentrate tank)
Brand
Boundless Terp Pen XL
Boundless Technology
G Pen Hyer
Grenco Science
Release Date
Boundless Terp Pen XL
2020
G Pen Hyer
2022
Choose Boundless Terp Pen XL if...
- You want the lower listed entry price ($55 vs $150).
- Your usage leans toward discrete and pen sessions.
- You prefer Boundless Terp Pen XL's overall feature mix and form factor.
Current price
$59
at Slick Vapes
Choose G Pen Hyer if...
- Your usage leans toward conduction and premium sessions.
- You prefer G Pen Hyer's overall feature mix and form factor.
- You value how the G Pen Hyer balances size, controls, and everyday practicality.
Current price
$249.99
at Slick Vapes
Prices are read automatically from retailer pages and were last checked Sep 3, 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.
19 differ 3 shared
| Specification | Boundless Terp Pen XL | G Pen Hyer |
|---|---|---|
| Price (USD) | $55 | $150 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Conduction |
| Temperature Range | 698°F - 779°F (370°C - 415°C) | 180°C - 220°C dry herb, 250°C - 450°C concentrate |
| Chamber Capacity | — | ~0.5g |
| Battery Type | Internal | External Battery Pack |
| Battery Capacity | 320mAh | 6000mAh |
| Charging | Micro USB | USB-C |
| Charge Time | ~45 minutes | 2.5 - 3 hours |
| Dimensions | 16x149x16mm | — |
| Power Adjustment | Modular - 3 stage | Digital Control - 5 Stage Modular |
| Chamber Material | Ceramic | Ceramic (dry herb tank), Quartz (concentrate tank) |
| Concentrate Support | Yes | Yes |
| Brand | Boundless Technology | Grenco Science |
| Adjustable Airflow | No | — |
| Country of Manufacture | China | — |
| Display Type | — | LED Light User Interface |
| Haptic Feedback | — | No |
| Heating Element | — | Stainless Steel |
| Release Date | 2020 | 2022 |
| Session Style | On-Demand | Session |
| Warranty | 3 years | — |
Comparison FAQs
What is the biggest difference between the Boundless Terp Pen XL and the G Pen Hyer?
There's no single headline gap. The differences are spread across 19 smaller spec rows rather than concentrated in one place. The spec table below marks each row that differs.
Which is cheaper, the Boundless Terp Pen XL or the G Pen Hyer?
Boundless Terp Pen XL is the cheaper option at $55 compared with $150 for the G Pen Hyer, about $95 less. Live retailer pricing can shift, so confirm before buying.
Can I set custom temperatures on the Boundless Terp Pen XL or the G Pen Hyer?
Boundless Terp Pen XL controls heat with modular - 3 stage, while the G Pen Hyer uses digital control - 5 stage modular. G Pen Hyer gives you finer per-degree control.
Which charges faster, the Boundless Terp Pen XL or the G Pen Hyer?
Boundless Terp Pen XL fully charges in ~45 minutes, ahead of 2.5 - 3 hours on the G Pen Hyer.
Which is more discreet, the Boundless Terp Pen XL or the G Pen Hyer?
Boundless Terp Pen XL is the better pick if low-profile use matters. It's tagged as stealth or pocket-friendly in our database, while the G Pen Hyer is more conspicuous in hand and harder to keep out of sight.
Can I use concentrates with the Boundless Terp Pen XL or the G Pen Hyer?
Both devices support concentrate use, typically via an included or aftermarket pad or insert. Check the manual for the recommended approach for each.
Which uses USB-C, the Boundless Terp Pen XL or the G Pen Hyer?
G Pen Hyer charges over USB-C; the Boundless Terp Pen XL uses a Micro USB port. USB-C means one fewer cable to keep around if your phone and laptop already use it.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.