Price (USD)
XMAX OONT edgeG Pen Pro
$90
XMAX OONT
$50
XMAX OONT is typically around $40 lower.
Vaporizer Comparison
Side-by-side specs, pricing context, and clear decision guidance.
G Pen Pro
Grenco Science $90
XMAX OONT
XMAX $50
G Pen Pro and XMAX OONT are both portable / budget vaporizers, but they target different priorities. XMAX OONT is usually the lower-cost pick at $50, around $40 below G Pen Pro. XMAX OONT has the quicker listed heat-up profile, which can matter for shorter sessions.
Specs Compared
21
Different Specs
18
Shared Specs
3
Overall Overlap
14%
Shared Traits
A quick snapshot of the specs people usually care about first.
G Pen Pro
$90
XMAX OONT
$50
XMAX OONT is typically around $40 lower.
G Pen Pro
~30 seconds
XMAX OONT
~20 seconds
XMAX OONT has the quicker listed heat-up profile.
G Pen Pro
Convection
XMAX OONT
Conduction
Heating style differs, which can impact flavor and extraction behavior.
Top specs where these two devices diverge.
Price (USD)
G Pen Pro
$90
XMAX OONT
$50
Heating Type
G Pen Pro
Convection
XMAX OONT
Conduction
Heat Up Time
G Pen Pro
~30 seconds
XMAX OONT
~20 seconds
Temperature Range
G Pen Pro
190°C - 220°C (375°F - 428°F)
XMAX OONT
180℃-220℃ (356℉-428℉)
Battery Type
G Pen Pro
Internal
XMAX OONT
Internal 18500
Battery Capacity
G Pen Pro
2200mAh
XMAX OONT
1500mAh
Charging
G Pen Pro
Micro-USB
XMAX OONT
USB-C
Charge Time
G Pen Pro
<3 hours
XMAX OONT
~2 hours
Power Adjustment
G Pen Pro
Modular - 3 Stages
XMAX OONT
5 Preset Modes
Chamber Material
G Pen Pro
Ceramic
XMAX OONT
Stainless Steel
Direct comparison of every spec from each device profile.
| Specification | G Pen Pro | XMAX OONT |
|---|---|---|
| Price (USD) | $90 | $50 |
| Device Type | Portable | Portable |
| Heating Type | Convection | Conduction |
| Heat Up Time | ~30 seconds | ~20 seconds |
| Temperature Range | 190°C - 220°C (375°F - 428°F) | 180℃-220℃ (356℉-428℉) |
| Chamber Capacity | ~0.25 grams | — |
| Battery Type | Internal | Internal 18500 |
| Battery Capacity | 2200mAh | 1500mAh |
| Battery Life | — | 12+ sessions |
| Charging | Micro-USB | USB-C |
| Charge Time | <3 hours | ~2 hours |
| Dimensions | — | 51.14 x 27.40 x 74.5mm |
| Power Adjustment | Modular - 3 Stages | 5 Preset Modes |
| Chamber Material | Ceramic | Stainless Steel |
| Brand | Grenco Science | XMAX |
| Country of Manufacture | — | China |
| Manufacturer | — | TopGreen Technology Co |
| Release Date | 2017 | 2023 |
| Replaceable Battery | — | No |
| Session Style | Session | Session |
| Warranty | 1 year | 1 year |
The biggest practical difference is heating approach: G Pen Pro runs convection while XMAX OONT runs conduction. That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
XMAX OONT 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.
XMAX OONT reaches session-ready temperature in ~20 seconds, while the G Pen Pro takes ~30 seconds. That's roughly 10 seconds quicker on the XMAX OONT, which is useful if you want shorter, on-demand sessions.
G Pen Pro uses convection heating, while the XMAX OONT uses conduction. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
XMAX OONT fully charges in ~2 hours, ahead of <3 hours on the G Pen Pro.
XMAX OONT is the better pick if low-profile use matters. It's tagged as stealth or pocket-friendly in our database, while the G Pen Pro is more conspicuous in hand and harder to keep out of sight.
XMAX OONT 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.
Jump into the comparison hub to pick any two devices and open a canonical side-by-side page.