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Vaporizer Comparison

G Pen Pro vs Session Odyssey

Side-by-side specs, pricing context, and clear decision guidance.

G Pen Pro

G Pen Pro

Grenco Science $90

VS
Session Odyssey

Session Odyssey

Kandypens from $149.97 CAD

Editorial Summary

G Pen Pro and Session Odyssey are both portable / budget vaporizers, but they target different priorities. Session Odyssey is usually the lower-cost pick at $50, around $40 below G Pen Pro. Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.

Specs Compared

21

Different Specs

18

Shared Specs

3

Overall Overlap

14%

Shared Traits

Portable Budget Electronic

Head-to-Head Highlights

A quick snapshot of the specs people usually care about first.

Price (USD)

Session Odyssey edge

G Pen Pro

$90

Session Odyssey

$50

Session Odyssey is typically around $40 lower.

Heating Style

Close call

G Pen Pro

Convection

Session Odyssey

Conduction

Heating style differs, which can impact flavor and extraction behavior.

Key Differences at a Glance

Top specs where these two devices diverge.

9 differences

Price (USD)

G Pen Pro

$90

Session Odyssey

$50

Heating Type

G Pen Pro

Convection

Session Odyssey

Conduction

Temperature Range

G Pen Pro

190°C - 220°C (375°F - 428°F)

Session Odyssey

N/A

Chamber Capacity

G Pen Pro

~0.25 grams

Session Odyssey

Up to ~0.2g

Battery Capacity

G Pen Pro

2200mAh

Session Odyssey

1200mAh

Charging

G Pen Pro

Micro-USB

Session Odyssey

USB-C

Charge Time

G Pen Pro

<3 hours

Session Odyssey

~1 hour

Power Adjustment

G Pen Pro

Modular - 3 Stages

Session Odyssey

4 Voltage Settings

Brand

G Pen Pro

Grenco Science

Session Odyssey

Kandypens

Choose G Pen Pro if...

  • You prefer a convection heating profile.
  • Your usage leans toward convection sessions.
  • You prefer G Pen Pro's overall feature mix and form factor.
View G Pen Pro Profile

Choose Session Odyssey if...

  • You want the lower listed entry price ($50 vs $90).
  • You prefer a conduction heating profile.
  • Your usage leans toward concentrates and conduction sessions.

Current price

$149.97CAD

at Mind Vapes

Check price
View full profile

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.

18 differ 3 shared
SpecificationG Pen ProSession Odyssey
Price (USD) $90$50
Device Type PortablePortable
Heating Type ConvectionConduction
Heat Up Time ~30 seconds
Temperature Range 190°C - 220°C (375°F - 428°F)N/A
Chamber Capacity ~0.25 gramsUp to ~0.2g
Battery Type InternalInternal
Battery Capacity 2200mAh1200mAh
Battery Life ~10 sessions
Charging Micro-USBUSB-C
Charge Time <3 hours~1 hour
Height 6.4cm
Weight ~125g
Power Adjustment Modular - 3 Stages4 Voltage Settings
Chamber Material CeramicCeramic
Concentrate Support Yes
Brand Grenco ScienceKandypens
Body Material Aluminum Alloy
Release Date 2017
Session Style Session
Warranty 1 year

Comparison FAQs

What is the biggest difference between the G Pen Pro and the Session Odyssey?

The biggest practical difference is heating approach: G Pen Pro runs convection while Session Odyssey runs conduction. That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.

Which is cheaper, the G Pen Pro or the Session Odyssey?

Session Odyssey is the cheaper option at $50 compared with $90 for the G Pen Pro, about $40 less. Live retailer pricing can shift, so confirm before buying.

What's the difference in heating between the G Pen Pro and the Session Odyssey?

G Pen Pro uses convection heating, while the Session Odyssey uses conduction. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.

Does the G Pen Pro or the Session Odyssey hold more flower?

G Pen Pro has the larger chamber at ~0.25 grams, versus Up to ~0.2g on the Session Odyssey. A bigger bowl means fewer reloads on long sessions; a smaller one suits microdosing and quicker bowls.

Can I set custom temperatures on the G Pen Pro or the Session Odyssey?

G Pen Pro controls heat with modular - 3 stages, while the Session Odyssey uses 4 voltage settings. Both let you change temperature, just with different levels of precision.

Which charges faster, the G Pen Pro or the Session Odyssey?

Session Odyssey fully charges in ~1 hour, ahead of <3 hours on the G Pen Pro.

Which uses USB-C, the G Pen Pro or the Session Odyssey?

Session Odyssey charges over USB-C; the G Pen Pro uses a Micro-USB port. USB-C means one fewer cable to keep around if your phone and laptop already use it.

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