CrossingTech Core 2.1
Pros
- Water pipe compatible.
- 3150 mAh battery with pass-through.
- Ready in 15 s.
- Temp range 205-260C.
- Session mode.
Cons
- 270 g, a bit heavy.
- No app and no dosing caps.
- Conduction only.
Price Comparison (6 shops)
Last updated: 03/03/2026, 2:38 AM
Specifications
| Heating Method | Conduction |
| Device Type | Portable |
| Power Source | Battery |
| Temperature Range | 205°C - 260°C |
| Heat-up Time | 13 seconds |
| Battery Capacity | 3150 mAh |
| Weight | 808 g |
| Water Pipe | View water pipe adapters |
| Session Mode | Session |
| Temperature Control | Presets |
| Material | Concentrates |
| Vapor Path | Glass |
| Battery Type | Internal |
| Replaceable Battery | No |
| Passthrough Charging | Yes |
| Charging Port | usb-c |
Source: OfficialOfficial, OfficialOfficial, TVapeRetailer · Verified 18.02.2026
The CrossingTech Core 2.1 from CrossingTech is a compact e-rig for concentrates with an integrated water bubbler. The 3150 mAh battery powers the conduction heater up to 260 °C. Weighing 808 g, it is best suited for home use.
In the price comparison, the Core 2.1 is available across 5 shops. The built-in bubbler eliminates the need for a separate water pipe adapter.
See also: TUG 2.0 · Ruby Twist Pro · CrossingTech Wireless One Hit Wonder · Ruby Twist Injector
E-Rig Concept: All in One Device
The Core 2.1 combines heating element, bubbler, and battery in a single device. Unlike traditional dab rigs, there is no separate torch, banger, or external power supply needed. This simplifies the setup considerably.
The integrated glass bubbler filters and cools vapor through water, producing smoother, cooler hits without the harshness of dry hits. The bubbler is removable for cleaning.
At 808 g, the Core 2.1 is not a pocket device but light enough to carry between rooms or to a friend's place.
Conduction Heating and Temperature Control
The heating element uses conduction and reaches a maximum of 260 °C. Temperature is set via buttons on the device. Multiple presets allow quick switching between low and high temperatures.
Lower temperatures (around 180-220 °C) emphasize flavor, while higher settings (240-260 °C) produce denser clouds. The sweet spot for most concentrates sits around 220-240 °C.
Heat-up time is short, typical for e-rigs in this class. Passthrough charging is supported so the device can be used while plugged in.
Battery and Runtime
The 3150 mAh battery is built in. The capacity covers numerous sessions in an evening. Passthrough charging means you can keep dabbing even at low battery.
Charging is via USB-C and takes about 2-3 hours from empty. For home use, the device can stay on the charger permanently.
Bubbler and Water Filtration
The integrated glass bubbler is the Core 2.1's defining feature. Water filters particles and cools vapor, noticeably reducing throat irritation. Water level is indicated by a marking on the bubbler.
The bubbler detaches for separate cleaning. Warm water and occasional isopropyl alcohol keep the glass clean. Replacement bubblers are available if the glass breaks.
Price Comparison: 5 Shops
The CrossingTech Core 2.1 is available across 5 shops in the price comparison. Prices vary by retailer and included accessories. Comparing before buying is worthwhile.
Alternatives in the e-rig category include the Puffco Peak Pro (significantly pricier) or simpler wax pens without water filtration. The Core 2.1 sits as an affordable middle ground with integrated bubbler.
Cleaning and Maintenance
The Core 2.1 atomizer is removable for cleaning. Isopropanol and a Q-tip handle basic maintenance. Deep clean every 10-15 sessions by soaking the atomizer.
Rinse the bubbler with water after each session. For mineral deposits, use vinegar or citric acid. Seals last 6-12 months with normal care.
Atomizer Options
The Core 2.1 works with several CrossingTech atomizers out of the box. The stock quartz bucket handles flower and concentrates at lower temps, while the optional SiC (silicon carbide) insert heats more evenly and cleans up faster. A titanium bucket is available too for users who prefer rapid heat-up over flavor purity. All atomizers share the same 510 thread connection, so swapping takes seconds.
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