Arizer Solo 2 — The Round Table

# Arizer Solo 2

Overview

The Arizer Solo 2 is a portable dry herb vaporizer manufactured by Arizer, a Canadian company based in Waterloo, Ontario. Released in 2017 as the successor to the original Arizer Solo, the Solo 2 is a session-style vaporizer featuring a hybrid heating system (predominantly conduction with some convection contribution). It is powered by an internal rechargeable lithium-ion battery and uses Arizer's signature glass stem system for the vapor path.

The Solo 2 quickly became one of the most widely recommended entry-level and intermediate portable vaporizers within the vaporizer community. It was praised for its simplicity of use, excellent flavor, solid battery life, and minimal maintenance requirements. The device retained the core design philosophy of the original Solo — a cylindrical body with a glass stem inserted into a heated ceramic oven — while adding a digital OLED display, precise single-degree temperature control, improved battery life, and a less restrictive draw compared to its predecessor.

Specifications

Specification	Detail
Manufacturer	Arizer (Canada)
Release Year	2017
Heating Method	Hybrid (primarily conduction, with convection airflow)
Temperature Range	50°C–220°C (122°F–428°F), adjustable in 1° increments
Heat-Up Time	Approximately 20–30 seconds
Battery	Internal rechargeable 18650 lithium-ion (non-user-replaceable without disassembly)
Battery Life	Approximately 3+ hours of continuous use (among the best in its class)
Chamber Size	~0.1–0.15g in the glass stem bowl
Display	OLED digital screen
Charging	Proprietary 12V DC round barrel charger
Session Timer	Configurable auto-shutoff
Dimensions	Approximately 122mm × 35mm (cylindrical)
Weight	Approximately 209g
Included Accessories	Two glass stems (short and long), charger, carrying pouch, stirring tool, screens, aroma dish/potpourri bowl
App Control	None

Community Reception

The Arizer Solo 2 was widely regarded within the community as one of the best values in portable vaporization, particularly for newer users and those prioritizing flavor and simplicity. It was frequently recommended as a first or second vaporizer and was often described as a reliable "daily driver."

Pros commonly cited by the community:

Exceptional flavor. The all-glass vapor path through the stem was consistently praised for delivering clean, terpene-rich vapor. One experienced community member noted that the Solo and Solo 2 share "the same great flavor" and recommended a sweet spot around 375°F–380°F for optimal taste. The Solos were noted to have better flavor than the Arizer Air by some users.
Ease of use. The device was frequently highlighted as extremely simple to operate: pack the stem, insert it, set the temperature, and draw. Multiple members emphasized this as a key advantage, especially compared to vaporizers with more complex loading systems.
Minimal maintenance. The glass stem system means most resin accumulates on an easily cleaned glass piece rather than in the device itself. Community members frequently described the Solo 2 as one of the lowest-maintenance vaporizers available.
Excellent battery life. The Solo 2's battery life was consistently noted as one of the best among portable vaporizers, often described as superior to the Crafty/Crafty+ and many competing portables.
Build quality and reliability. The device was described as "more solid" than competitors like the Crafty, with Arizer's long-standing reputation for durability giving users confidence. One community member specifically chose it over a Fury Edge because of Arizer's "long-standing reputation."
Digital temperature control. The precise single-degree digital display was a major upgrade from the original Solo's stepped heat settings and was praised for allowing users to "dial in" their preferred temperature.
Improved draw resistance. Multiple community members noted that Arizer "took care of the milkshake draw" that had been a common complaint with the original Solo, describing the Solo 2 as having "a fairly easy draw" with a loose pack.
Low consumable costs. Glass stems were the only regular replacement item, and they were inexpensive and durable. One community member noted they had not broken a stem after months of use.

Cons and criticisms noted by the community:

Session-style heating. As a session vaporizer, the Solo 2 continuously heats the material once turned on, which means some terpene loss between draws. Several community members pointed out that on-demand convection vaporizers (such as the Tinymight, Milaana, or Tubo) produce less odor and waste less material between hits.
Odor production. While not the worst offender, the Solo 2 was noted to produce more smell than some other vaporizers, both during use and to a lesser degree when cooling down. One member noted it "does have a smell, more so than some of my other vaporizers." Keeping the stem cap on when cooled down was recommended to contain residual odor.
Draw resistance still present. While improved over the original, the Solo 2's airflow was still described as more restricted than pure convection on-demand portables. One user who owned a Solo 2, Mighty, and Airvape Legacy Pro described none of them as truly "open" in airflow.
Proprietary charger. The Solo 2 uses a round DC barrel charger rather than USB-C, which was noted as a disadvantage compared to devices like the Fury Edge that use standard USB-C charging.
Non-user-replaceable battery. Unlike the original Solo (which had accessible screws) or the Arizer Air (with a removable 18650), the Solo 2's battery was more difficult to replace. Community members noted that battery replacement "is not just a simple remove the four screws on the bottom anymore" and that contacting Arizer directly was likely necessary.
Airpath cleanliness concerns. One knowledgeable community member noted that "the airpath is not 100% clean" because air enters through the 12V charger port in addition to the dedicated inlet air holes, potentially passing over internal electronics before reaching the herb. While the taste was described as "ok," it was noted as not matching vaporizers with fully isolated air paths.
Vapor harshness for some users. A few users reported finding the Solo 2's vapor too harsh, particularly at higher temperatures, with one seller describing it as hitting "like a freight train" and being too much for sensitive lungs.
Not ideal for concentrates or hash. Community consensus indicated the Solo 2 was not well-suited for hash or concentrates due to mess and maintenance issues.

Tips & Techniques

Loading the Stem

The Solo 2 uses a unique loading method where the glass stem itself serves as the bowl. The community recommended the following approach:

Grind consistency: A medium grind works well. There is no need for an extremely fine grind.
Packing density: A light to medium pack was widely recommended. Overpacking increases draw resistance significantly. As one experienced member noted, the device has "a fairly easy draw if you don't give a tight pack."
Dip-and-twist method: Many users in the community loaded the stem by pressing it into a container of ground herb and twisting gently, rather than manually packing. This naturally produces a suitable density.
Screen usage: Community members were divided on using screens. Some preferred using a screen in the stem to prevent fine particles from reaching the mouth and gums. Others found that the stems stayed "fairly tight" with herb and did not require screens. This appears to be a matter of grind consistency and personal preference.
Stem cap: Keeping the silicone stem cap on the loaded stem helps contain odor during transport and prevents spillage.

Drawing Technique

Draw slowly and steadily. While improved over the original Solo, the Solo 2 still benefits from a measured inhalation rather than a rapid, forceful pull.
Some community members used temperature stepping during a session — starting at lower temperatures for flavor and gradually increasing to maximize extraction.

Hash and Concentrates

The community generally advised against using hash in the Solo 2. One member noted that hash "gets dirty a lot" in the device. If attempting to use concentrates, the sandwich method (layering concentrate between layers of ground flower) was suggested by one user who had tried it with shatter, though they noted it was not their preferred method. For hash specifically, the community recommended dedicated devices such as the Dynavap OmniVap, or using hemp fiber as a bed material.

Odor Management

For use in situations where discretion is important (such as hotel rooms), the community noted:

Both the Solo 2 and similar session vapes will produce odor while in use as the load cooks between draws.
When cooled down, the Solo 2 produces less residual smell, especially with the stem cap on.
For minimal odor, on-demand convection vaporizers were recommended as alternatives.

Stealth Use

A creative community technique, widely shared and appreciated, involved inserting the Solo's glass stem through the lid of a fast-food drink cup, allowing the user to appear to be sipping a beverage while vaping. Commercial "stealth adapters" from third-party retailers were also available for this purpose.

Temperature Guide

The Solo 2 offers precise temperature control from 50°C to 220°C (122°F to 428°F) in single-degree increments.

Temperature Range	Effects	Notes
170°C–180°C (338°F–356°F)	Light, wispy vapor; maximum flavor and terpene expression	Best for flavor chasers; minimal visible vapor
180°C–190°C (356°F–374°F)	Good flavor with moderate vapor production	Good starting point for sessions; community-recommended for troubleshooting taste issues
190°C–200°C (374°F–392°F)	Community sweet spot — balanced flavor and vapor production	One experienced member specifically cited 375°F–380°F (~190°C–193°C) as "where the flavor is at"
200°C–210°C (392°F–410°F)	Dense clouds, stronger effects, reduced flavor	Good for finishing a bowl or prioritizing extraction efficiency
210°C–220°C (410°F–428°F)	Maximum extraction; heavy clouds; minimal flavor	One community member noted 220°C "hits strong" but flavor is significantly diminished at this range

Temperature stepping — starting low and gradually increasing through a session — was a widely practiced technique in the community for getting both flavor and full extraction from a single bowl.

Maintenance & Cleaning

The Solo 2 was consistently described as one of the easiest vaporizers to maintain.

Glass Stems

Frequency: Clean when resin buildup becomes visible or draw resistance increases.
Method: Soak stems in isopropyl alcohol (ISO), then rinse thoroughly with warm water. Some users saved the ISO after soaking for later use, as the dissolved resin contains active compounds (a practice sometimes called "stem milk" when done with milk or a fatty liquid instead).
Alternative: Boil the stems in milk or a milk substitute to reclaim resin and make an infused beverage.

Oven/Heater

The ceramic oven requires minimal cleaning since the herb sits in the glass stem, not directly in the oven.
A dry brush or compressed air can remove any small particles that fall into the oven.
Avoid inserting wet or dripping items into the oven.

General

Keep the charging port area clean, as it was noted that air can enter through this port.
The device itself does not have many "fiddly" parts to clean, which was cited as a significant advantage over competitors with more complex vapor paths or many small components.

Common Issues & Fixes

Unpleasant Taste on First Use

Multiple new users reported unexpected or unpleasant flavors when first using the Solo 2. Community troubleshooting advice included:

Perform proper burn-off cycles: Run the device empty at maximum temperature for at least two full sessions before first use with herbs.

Check temperature setting: Starting too high can produce a harsh, "popcorn" flavor. Begin at or below 180°C (356°F) to assess flavor before increasing.

Check herb quality: Some strains taste significantly different when vaporized compared to combusted. One member noted that "some cannabis taste better vaporwise than others" and specifically disliked the vapor taste of White Widow.

Inspect for manufacturing residue: If the taste is plastic-like, electronic, or chemical, perform empty burn-ins near a bright light and look for visible fumes at an angle. If fumes are present, the device may be defective and should be exchanged.

Examine ABV color: Check the color of the spent herb — this helps diagnose whether the temperature was appropriate or if combustion occurred.

Battery Degradation

The Solo 2's internal battery is not easily user-replaceable. Community advice:

Contact Arizer directly for battery replacement service. This was expected to carry a cost if outside the warranty period.
Unlike the original Solo, the Solo 2 does not have simple screw-off bottom access to the battery. Some community discussion mentioned that user battery replacement was technically possible but not straightforward (potentially requiring disassembly beyond simple screw removal).
The device came with a 2-year warranty from Arizer.

Vapor Harshness

Some users, particularly those with sensitive airways, found the Solo 2's vapor harsh at higher temperatures:

Use lower temperatures (below 195°C / 383°F).
Consider using the device through a water pipe with a WPA (water pipe adapter) to cool and humidify the vapor.
Use the longer glass stem, which provides more cooling distance.

Accessories & Modifications

Glass Stems

The Solo 2 uses Arizer's proprietary glass stems, which are compatible across the Solo, Solo 2, Air, and Air 2 product lines. Available styles include:

Standard straight stem (long ~110mm and short ~90mm)
Stems with frosted/colored glass tips
Plastic-tipped stems for added durability and cooler lip contact

Water Pipe Adapters (WPA/GonG)

Water pipe adapters — commonly called "GonGs" (Glass on Glass) in the community — were among the most popular accessories. These replace the standard stem with a piece that fits into a water pipe joint:

Available in both 14mm and 18mm sizes to match standard water pipe joints.
Community members recommended purchasing both sizes to ensure compatibility with different glass pieces.
Using the Solo 2 with a water pipe was a frequently recommended upgrade, both for cooling the vapor and for enhanced extraction.
Pairing with a small bubbler (such as the popular Mobius Ion Matrix replica) was a common community setup.

Stem Caps

Silicone stem caps were included with the device and served to:

Prevent herb from falling out of a loaded stem during transport.
Contain odor when the device was not in use.

Third-Party Retailers and Bundles

At least one retailer (420EDC, based in Maine) was recognized in the community for offering curated accessory bundles specifically for Arizer second-generation portables, including the Solo 2, Air 2, and ArGo. These bundles allowed customers to select configurations tailored to their needs.

Comparisons

vs. Arizer Solo (Original)

The Solo 2 was widely viewed as a meaningful upgrade over the original Solo. Key improvements included: precise digital temperature control (replacing stepped heat settings), significantly improved draw resistance, faster heat-up time, improved battery life, and the OLED display. The core flavor profile was considered the same. One member who owned both noted that the Solo 2 "just has more bells and whistles" while sharing "the same great flavor."

vs. Arizer Air / Air OG

Several community members who owned both the Solo line and the Air reported that the Solos had better vapor flavor than the Air. The Air's advantage was its removable 18650 battery, which the Solo 2 lacked. The Solo 2 was generally recommended over the Air unless battery swappability was a priority.

vs. Storz & Bickel Crafty/Crafty+

This was one of the most frequently discussed comparisons. Key distinctions noted by the community:

Portability: The Crafty was considered more discreet and pocket-friendly (fits in cargo pants pockets).
Battery life: The Solo 2 had significantly better battery life.
Build reliability: The Solo 2 was generally considered more reliable and durable.
Temperature control: The Solo 2's on-device digital controls were preferred over the Crafty's app-dependent system.
Maintenance: Both were considered easy to maintain. One user recommended using a liquid pad with the Crafty as a filter but found the Solo 2 needed even less upkeep.
Vapor quality: Both were considered to produce good vapor, with differences being largely a matter of preference.
Odor: Both produced similar levels of smell during active use.

vs. Fury Edge (Healthy Rips)

Community members were divided on this comparison:

One member preferred the Fury Edge for "bigger clouds," more stem/mouthpiece options, and USB-C charging.
Others valued the Solo 2's established reputation for long-term reliability and simpler maintenance.
The Solo 2 used a proprietary DC charger while the Edge used standard USB-C — a point in the Edge's favor for travelers.
The Edge was more compact and portable; the Solo 2 had better battery life.

vs. Haze Dual V3

Compared against the Haze Dual V3, the Solo 2 was favored by users who valued simplicity:

The Haze offered dual chambers and the ability to use both wax and flower, but had many small, "fiddly" parts that were easy to lose and harder to clean.
The Solo 2 was praised for having far fewer parts and being much easier to maintain.
Both could be used with water pipes via appropriate adapters.
The Haze had replaceable batteries as an advantage.

vs. On-Demand Convection Portables (Tinymight, Milaana, Tubo, Firewood 7)

The community consistently noted that on-demand convection vaporizers represented a fundamentally different category:

On-demand vaporizers produced significantly less odor because they only heat material during the draw.
They offered more open airflow, which users seeking unrestricted draws preferred.
Flavor was sometimes noted as more intense on a per-hit basis from on-demand convection devices.
The Solo 2 was considered simpler to use, more forgiving of technique, more affordable, and better suited to relaxed session-style use.
One experienced member described the difference between a Solo 2 and a Tinymight 2 as "huge," noting the TM2 offered "much more power and efficiency" and could "get you higher with the extraction with less material."
The Solo 2 was often recommended as an excellent starting point, with on-demand convection vaporizers suggested as a natural upgrade path for users who wanted more control and efficiency.

vs. Mighty/Mighty+

The Mighty was generally considered a step up in raw performance from the Solo 2, but at a higher price point. The Solo 2 was seen as competitive on flavor and superior on battery life and simplicity, while the Mighty offered easier airflow and faster extraction. Both were frequently owned alongside each other, with users choosing between them based on the situation.