Price (USD)
Boundless Terp Pen XL edgeBoundless Terp Pen XL
$55
Modul
$350
Boundless Terp Pen XL is typically around $295 lower.
Vaporizer Comparison
Boundless Terp Pen XL vs Modul
Side-by-side specs, pricing context, and clear decision guidance.
Boundless Terp Pen XL
Boundless Technology from $59
VS
Modul
Stündenglass $350
Editorial Summary
Boundless Terp Pen XL and Modul are both portable / electronic vaporizers, but they target different priorities. Boundless Terp Pen XL is usually the lower-cost pick at $55, around $295 below Modul. Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
23
Different Specs
19
Shared Specs
4
Overall Overlap
17%
Shared Traits
Portable Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heating Style
Close callBoundless Terp Pen XL
Conduction
Modul
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
Modul
$350
Temperature Range
Boundless Terp Pen XL
698°F - 779°F (370°C - 415°C)
Modul
850°F-900°F (Dry Herb Tank)
Battery Capacity
Boundless Terp Pen XL
320mAh
Modul
6000mAh
Charging
Boundless Terp Pen XL
Micro USB
Modul
USB-C
Charge Time
Boundless Terp Pen XL
~45 minutes
Modul
~2 Hours
Dimensions
Boundless Terp Pen XL
16x149x16mm
Modul
154x68x50mm
Power Adjustment
Boundless Terp Pen XL
Modular - 3 stage
Modul
Digital
Chamber Material
Boundless Terp Pen XL
Ceramic
Modul
Quartz
Brand
Boundless Terp Pen XL
Boundless Technology
Modul
Stündenglass
Release Date
Boundless Terp Pen XL
2020
Modul
2023
Choose Boundless Terp Pen XL if...
- You want the lower listed entry price ($55 vs $350).
- Your usage leans toward concentrates and discrete sessions.
- You prefer Boundless Terp Pen XL's overall feature mix and form factor.
Current price
$59
at Slick Vapes
Choose Modul if...
- Your usage leans toward conduction and premium sessions.
- You prefer Modul's overall feature mix and form factor.
- You value how the Modul balances size, controls, and everyday practicality.
Prices are read automatically from retailer pages and were last checked Aug 27, 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 4 shared
| Specification | Boundless Terp Pen XL | Modul |
|---|---|---|
| Price (USD) | $55 | $350 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Conduction |
| Heat Up Time | — | ~15 Seconds |
| Temperature Range | 698°F - 779°F (370°C - 415°C) | 850°F-900°F (Dry Herb Tank) |
| Battery Type | Internal | Internal |
| Battery Capacity | 320mAh | 6000mAh |
| Battery Life | — | <50 Sessions Depending on Usage Style |
| Charging | Micro USB | USB-C |
| Charge Time | ~45 minutes | ~2 Hours |
| Dimensions | 16x149x16mm | 154x68x50mm |
| Weight | — | 387.5g |
| Power Adjustment | Modular - 3 stage | Digital |
| Chamber Material | Ceramic | Quartz |
| Concentrate Support | Yes | — |
| Brand | Boundless Technology | Stündenglass |
| Adjustable Airflow | No | — |
| Body Material | — | Anodized Aluminum |
| Country of Manufacture | China | China |
| Display Type | — | 2.4” Color Display |
| Release Date | 2020 | 2023 |
| Session Style | On-Demand | Session |
| Warranty | 3 years | 2 years |
Comparison FAQs
What is the biggest difference between the Boundless Terp Pen XL and the Modul?
The biggest practical difference is price tier: the Boundless Terp Pen XL sits at $55 while the Modul is $350, a gap of about $295 that puts them in different buying brackets.
Which is cheaper, the Boundless Terp Pen XL or the Modul?
Boundless Terp Pen XL is the cheaper option at $55 compared with $350 for the Modul, about $295 less. Live retailer pricing can shift, so confirm before buying.
Can I set custom temperatures on the Boundless Terp Pen XL or the Modul?
Boundless Terp Pen XL controls heat with modular - 3 stage, while the Modul uses digital. Modul gives you finer per-degree control.
Which charges faster, the Boundless Terp Pen XL or the Modul?
Boundless Terp Pen XL fully charges in ~45 minutes, ahead of ~2 Hours on the Modul.
Which is more discreet, the Boundless Terp Pen XL or the Modul?
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 Modul is more conspicuous in hand and harder to keep out of sight.
Which has a wider temperature range, the Boundless Terp Pen XL or the Modul?
Boundless Terp Pen XL covers 698°F - 779°F (370°C - 415°C), a wider band than the Modul at 850°F-900°F (Dry Herb Tank). A wider range gives you more room to dial in flavor at the low end and big clouds at the top.
Which uses USB-C, the Boundless Terp Pen XL or the Modul?
Modul 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.