JUUL2
Pros
- Highest switching rate in manufacturer's study reviewed by FDA (up to 49.3% for menthol)
- Lower nicotine (18mg/mL) with comparable satisfaction
- Pod ID chip blocks counterfeits
- One-time age verification — low ongoing friction
- US-manufactured (TN, WI, MD)
- 5 years of UK real-world data
Cons
- Only 2 authorized flavors (tobacco, menthol) in the US
- Requires app setup before first use
- 18mg/mL may not satisfy heavy smokers initially
- Proprietary pods — no third-party compatibility
- Slower charging (~1 hour) vs Glas G2 (20 min)
Original JUUL
Pros
- Simplest user experience — no app, no setup
- Available in 3% and 5% nicotine options
- Widely available at retail
- No phone pairing or Bluetooth required
Cons
- Small battery (~200mAh) — frequent charging
- Small pods (0.7mL) — frequent replacement
- No pod authentication — counterfeits work
- No device-level age verification
- No access-control features the FDA now rewards
Glas G2
Pros
- 5 authorized flavors (most in this category)
- First non-tobacco/menthol flavors (mango, blueberry)
- Strictest age-verification system
- Triple-coil for robust vapor
- Fastest charging (~20 minutes)
- Largest pod capacity (1.3mL)
Cons
- Requires continuous phone pairing — high friction
- Device locks when phone is out of range
- Random biometric re-checks during use
- 5% nicotine only (no lower-strength option)
- US-only availability (not in UK)
- Micro-USB charging (older standard)
