Price (USD)
Boundless CF edgeBoundless CF
$100
G Pen Hyer
$150
Boundless CF is typically around $50 lower.
Vaporizer Comparison
Boundless CF vs G Pen Hyer
Side-by-side specs, pricing context, and clear decision guidance.
Boundless CF
Boundless Technology $100
VS
G Pen Hyer
Grenco Science from $249.99
Editorial Summary
Boundless CF and G Pen Hyer are both concentrates / portable vaporizers, but they target different priorities. Boundless CF is usually the lower-cost pick at $100, around $50 below G Pen Hyer. Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
24
Different Specs
20
Shared Specs
4
Overall Overlap
17%
Shared Traits
Concentrates Portable Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heating Style
Close callBoundless CF
Hybrid Convection
G Pen Hyer
Conduction
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 CF
$100
G Pen Hyer
$150
Heating Type
Boundless CF
Hybrid Convection
G Pen Hyer
Conduction
Temperature Range
Boundless CF
180°C-212°C
G Pen Hyer
180°C - 220°C dry herb, 250°C - 450°C concentrate
Battery Type
Boundless CF
Lithium-Ion
G Pen Hyer
External Battery Pack
Battery Capacity
Boundless CF
1300mAh
G Pen Hyer
6000mAh
Charging
Boundless CF
Micro USB
G Pen Hyer
USB-C
Charge Time
Boundless CF
~3 hours
G Pen Hyer
2.5 - 3 hours
Power Adjustment
Boundless CF
Modular - 5 stage
G Pen Hyer
Digital Control - 5 Stage Modular
Chamber Material
Boundless CF
Ceramic
G Pen Hyer
Ceramic (dry herb tank), Quartz (concentrate tank)
Brand
Boundless CF
Boundless Technology
G Pen Hyer
Grenco Science
Choose Boundless CF if...
- You want the lower listed entry price ($100 vs $150).
- You prefer a hybrid convection heating profile.
- Your usage leans toward hybrid and discrete sessions.
Typical price
$100
Sold by The Stash Shack
Choose G Pen Hyer if...
- You prefer a conduction heating profile.
- Your usage leans toward conduction and premium sessions.
- You prefer G Pen Hyer's overall feature mix and form factor.
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.
20 differ 4 shared
| Specification | Boundless CF | G Pen Hyer |
|---|---|---|
| Price (USD) | $100 | $150 |
| Device Type | Portable | Portable |
| Heating Type | Hybrid Convection | Conduction |
| Heat Up Time | ~30 seconds | — |
| Temperature Range | 180°C-212°C | 180°C - 220°C dry herb, 250°C - 450°C concentrate |
| Chamber Capacity | ~0.5g | ~0.5g |
| Battery Type | Lithium-Ion | External Battery Pack |
| Battery Capacity | 1300mAh | 6000mAh |
| Battery Life | 10-15 sessions | — |
| Charging | Micro USB | USB-C |
| Charge Time | ~3 hours | 2.5 - 3 hours |
| Dimensions | 100x60x30mm | — |
| Weight | ~142g | — |
| Power Adjustment | Modular - 5 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 |
| Country of Manufacture | China | — |
| Display Type | — | LED Light User Interface |
| Haptic Feedback | — | No |
| Heating Element | — | Stainless Steel |
| Release Date | 2016 | 2022 |
| Session Style | Session | Session |
| Warranty | 3 years | — |
Comparison FAQs
What is the biggest difference between the Boundless CF and the G Pen Hyer?
The biggest practical difference is heating approach: Boundless CF runs hybrid convection while G Pen Hyer runs conduction. That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
Which is cheaper, the Boundless CF or the G Pen Hyer?
Boundless CF is the cheaper option at $100 compared with $150 for the G Pen Hyer, about $50 less. Live retailer pricing can shift, so confirm before buying.
What's the difference in heating between the Boundless CF and the G Pen Hyer?
Boundless CF uses hybrid convection heating, while the G Pen Hyer uses conduction. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
Can I set custom temperatures on the Boundless CF or the G Pen Hyer?
Boundless CF controls heat with modular - 5 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 CF or the G Pen Hyer?
G Pen Hyer fully charges in 2.5 - 3 hours, ahead of ~3 hours on the Boundless CF.
Which is more discreet, the Boundless CF or the G Pen Hyer?
Boundless CF 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.
Which has a wider temperature range, the Boundless CF or the G Pen Hyer?
G Pen Hyer covers 180°C - 220°C dry herb, 250°C - 450°C concentrate, a wider band than the Boundless CF at 180°C-212°C. A wider range gives you more room to dial in flavor at the low end and big clouds at the top.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.