Price (USD)
Boundless Terp Pen edgeBoundless Terp Pen
$25
XMAX Starry 4
$99
Boundless Terp Pen is typically around $74 lower.
Vaporizer Comparison
Side-by-side specs, pricing context, and clear decision guidance.
Boundless Terp Pen
Boundless Technology $25
XMAX Starry 4
XMAX $99
Boundless Terp Pen and XMAX Starry 4 are both portable / electronic vaporizers, but they target different priorities. Boundless Terp Pen is usually the lower-cost pick at $25, around $74 below XMAX Starry 4. Session style, airflow, and extraction behavior will matter more than raw spec sheet numbers here.
Specs Compared
27
Different Specs
24
Shared Specs
3
Overall Overlap
11%
Shared Traits
A quick snapshot of the specs people usually care about first.
Boundless Terp Pen
$25
XMAX Starry 4
$99
Boundless Terp Pen is typically around $74 lower.
Boundless Terp Pen
Ceramic & Stainless Steel Coil
XMAX Starry 4
Conduction
Heating style differs, which can impact flavor and extraction behavior.
Top specs where these two devices diverge.
Price (USD)
Boundless Terp Pen
$25
XMAX Starry 4
$99
Heating Type
Boundless Terp Pen
Ceramic & Stainless Steel Coil
XMAX Starry 4
Conduction
Temperature Range
Boundless Terp Pen
N/A
XMAX Starry 4
100℃-240℃ (212℉-464℉)
Chamber Capacity
Boundless Terp Pen
N/A
XMAX Starry 4
0.4g
Battery Type
Boundless Terp Pen
Internal
XMAX Starry 4
18650
Battery Capacity
Boundless Terp Pen
300mAh
XMAX Starry 4
2550mAh
Charging
Boundless Terp Pen
Micro USB
XMAX Starry 4
USB-C
Dimensions
Boundless Terp Pen
13x134x13mm
XMAX Starry 4
115.9 x 37.5 x 24mm
Power Adjustment
Boundless Terp Pen
Draw-Activated
XMAX Starry 4
Digital (precise)
Brand
Boundless Terp Pen
Boundless Technology
XMAX Starry 4
XMAX
Direct comparison of every spec from each device profile.
| Specification | Boundless Terp Pen | XMAX Starry 4 |
|---|---|---|
| Price (USD) | $25 | $99 |
| Device Type | Portable | Portable |
| Heating Type | Ceramic & Stainless Steel Coil | Conduction |
| Heat Up Time | — | ~15 seconds |
| Temperature Range | N/A | 100℃-240℃ (212℉-464℉) |
| Chamber Capacity | N/A | 0.4g |
| Battery Type | Internal | 18650 |
| Battery Capacity | 300mAh | 2550mAh |
| Battery Life | — | ~60 minutes |
| Charging | Micro USB | USB-C |
| Charge Time | — | ~90 minutes |
| Pass-Through Charging | — | Yes |
| Dimensions | 13x134x13mm | 115.9 x 37.5 x 24mm |
| Weight | — | ~137g |
| Power Adjustment | Draw-Activated | Digital (precise) |
| Chamber Material | Ceramic | Ceramic |
| Concentrate Support | Yes | — |
| Brand | Boundless Technology | XMAX |
| Adjustable Airflow | — | Yes |
| Country of Manufacture | China | China |
| Display Type | — | OLED |
| Haptic Feedback | — | Yes |
| Manufacturer | — | TopGreen Technology Co |
| Release Date | — | 2023 |
| Replaceable Battery | — | Yes |
| Session Style | On-Demand | Session |
| Warranty | 3 years | 1 year |
The biggest practical difference is heating approach: Boundless Terp Pen runs ceramic & stainless steel coil while XMAX Starry 4 runs conduction. That changes flavor delivery, vapor density, and how the device responds to slow versus fast draws.
Boundless Terp Pen is the cheaper option at $25 compared with $99 for the XMAX Starry 4, about $74 less. Live retailer pricing can shift, so confirm before buying.
Boundless Terp Pen uses ceramic & stainless steel coil heating, while the XMAX Starry 4 uses conduction. Heating style influences flavor profile, vapor density, and how forgiving the device is to draw technique.
XMAX Starry 4 uses 18650, so you can carry spares for back-to-back days. The Boundless Terp Pen has a built-in battery you can't swap on the go.
Boundless Terp Pen controls heat with draw-activated, while the XMAX Starry 4 uses digital (precise). XMAX Starry 4 gives you finer per-degree control.
Boundless Terp Pen lists a chamber capacity of N/A; the XMAX Starry 4 lists 0.4g.
XMAX Starry 4 charges over USB-C; the Boundless Terp Pen 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.