TasteFlex

The TasteFlex UltraLock 50000 Puffs runs $18.99 to $19.49 depending on flavour. The list is broader than most: Blue Razz Ice, Sour Apple Ice, Peach Mango Ice, Triple Berry Ice, Strawberry Kiwi, Watermelon Lime, Tropical Gush, White Gummy, Miami Mint, Tobacco, Clear and, unusually, Iced Coffee.

It costs a dollar or two more than the Elux Astra or VINT at the same 50,000 puffs. The lock is what you are paying for. If you carry a device loose in a bag, that is worth having; if it lives on a desk, the cheaper 50K devices do the same job. Fast shipping and low prices.