Price (USD)
G Pen Roam edgeG Pen Roam
$100
Zeus Arc GTS
$200
G Pen Roam is typically around $100 lower.
Vaporizer Comparison
G Pen Roam vs Zeus Arc GTS
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Roam
Grenco Science from $49.95
VS
Zeus Arc GTS
Zeus Arsenal $200
Editorial Summary
G Pen Roam and Zeus Arc GTS are both portable / electronic vaporizers, but they target different priorities. G Pen Roam is usually the lower-cost pick at $100, around $100 below Zeus Arc GTS. G Pen Roam has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
23
Different Specs
16
Shared Specs
7
Overall Overlap
30%
Shared Traits
Portable Electronic
Head-to-Head Highlights
A quick snapshot of the specs people usually care about first.
Heat-Up Time
G Pen Roam edgeG Pen Roam
~5 seconds
Zeus Arc GTS
~80 seconds
G Pen Roam has the quicker listed heat-up profile.
Weight
Zeus Arc GTS edgeG Pen Roam
~317g
Zeus Arc GTS
125g
Zeus Arc GTS is the lighter listed unit.
Heating Style
Close callG Pen Roam
Conduction
Zeus Arc GTS
Conduction
Both devices use a similar heating approach.
Key Differences at a Glance
Top specs where these two devices diverge.
Price (USD)
G Pen Roam
$100
Zeus Arc GTS
$200
Heat Up Time
G Pen Roam
~5 seconds
Zeus Arc GTS
~80 seconds
Temperature Range
G Pen Roam
204°C - 427°C (400°F - 800°F)
Zeus Arc GTS
401°F - 437°F
Battery Capacity
G Pen Roam
1300mAh
Zeus Arc GTS
3500 mAh
Battery Life
G Pen Roam
15-20 sessions
Zeus Arc GTS
~90 minutes
Weight
G Pen Roam
~317g
Zeus Arc GTS
125g
Power Adjustment
G Pen Roam
Digital Control
Zeus Arc GTS
Modular - 3 Stages
Chamber Material
G Pen Roam
Quartz
Zeus Arc GTS
Gold-Plated
Brand
G Pen Roam
Grenco Science
Zeus Arc GTS
Zeus Arsenal
Release Date
G Pen Roam
2020
Zeus Arc GTS
2021
Choose G Pen Roam if...
- You want the lower listed entry price ($100 vs $200).
- You care about faster heat-up time for quicker sessions.
- Your usage leans toward concentrates sessions.
Lowest price
$49.95
at G Pen
Choose Zeus Arc GTS if...
- You want the lighter unit for carrying and travel.
- Your usage leans toward premium and conduction sessions.
- You prefer Zeus Arc GTS's overall feature mix and form factor.
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.
16 differ 7 shared
| Specification | G Pen Roam | Zeus Arc GTS |
|---|---|---|
| Price (USD) | $100 | $200 |
| Device Type | Portable | Portable |
| Heating Type | Conduction | Conduction |
| Heat Up Time | ~5 seconds | ~80 seconds |
| Temperature Range | 204°C - 427°C (400°F - 800°F) | 401°F - 437°F |
| Chamber Capacity | — | ~0.3 grams |
| Battery Type | Internal | Internal |
| Battery Capacity | 1300mAh | 3500 mAh |
| Battery Life | 15-20 sessions | ~90 minutes |
| Charging | Micro-USB | Micro USB |
| Charge Time | ~2 hours | ~2 hours |
| Dimensions | — | 86x42x22.5mm |
| Weight | ~317g | 125g |
| Power Adjustment | Digital Control | Modular - 3 Stages |
| Chamber Material | Quartz | Gold-Plated |
| Concentrate Support | Yes | — |
| Brand | Grenco Science | Zeus Arsenal |
| Adjustable Airflow | No | No |
| Display Type | LED | — |
| Haptic Feedback | Yes | Yes |
| Release Date | 2020 | 2021 |
| Session Style | — | Session |
| Warranty | 1 year | 3 years |
Comparison FAQs
What is the biggest difference between the G Pen Roam and the Zeus Arc GTS?
The biggest practical difference is price tier: the G Pen Roam sits at $100 while the Zeus Arc GTS is $200, a gap of about $100 that puts them in different buying brackets.
Which is cheaper, the G Pen Roam or the Zeus Arc GTS?
G Pen Roam is the cheaper option at $100 compared with $200 for the Zeus Arc GTS, about $100 less. Live retailer pricing can shift, so confirm before buying.
Which heats up faster, the G Pen Roam or the Zeus Arc GTS?
G Pen Roam reaches session-ready temperature in ~5 seconds, while the Zeus Arc GTS takes ~80 seconds. That's roughly 75 seconds quicker on the G Pen Roam, which is useful if you want shorter, on-demand sessions.
Which is lighter, the G Pen Roam or the Zeus Arc GTS?
Zeus Arc GTS is the lighter unit at 125g, around 192g less than the G Pen Roam at ~317g. The lighter device is easier to carry and pocket day-to-day.
Can I set custom temperatures on the G Pen Roam or the Zeus Arc GTS?
G Pen Roam controls heat with digital control, while the Zeus Arc GTS uses modular - 3 stages. G Pen Roam gives you finer per-degree control.
What battery life can I expect from the G Pen Roam and the Zeus Arc GTS?
G Pen Roam's spec sheet lists 15-20 sessions; the Zeus Arc GTS lists ~90 minutes. The two manufacturers measure battery life differently here, so direct comparison isn't straightforward.
How similar are the G Pen Roam and the Zeus Arc GTS?
Across the 23 specs we line up, they share 7 and differ on 16, an overlap of about 30%. The differences are concentrated in the areas the spec table highlights with a marker.
Need a different matchup?
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.