You have no idea the can of worms you've just opened.
It's ok, you're relatively new here, and its a valid question. I'm no expert by any means, but since I'm the first to respond, I'll give you my
The ego Twist and Kgo are mid-sized pv's that are essentially a one-piece rechargeable battery with a power switch, a connector for the atomizer, and an endpiece to connect to a charger. Within the battery is also an electrical processor that boosts its power output to the atomizer. They are considered to be disposable, as their expected lifetime can be measured in months. The battery duration of these batteries vary by their mAh rating, which can be 6 to 12 hours. Figure 100 mAh = 1 hour vape time.
The tube mods are basically large metal tubes designed to hold a removable rechargeable battery, and have a power switch and atomizer connector, and some type of control button (or buttons) to vary, or change, the power output or voltage that the battery provides. Within is some type of electrical processor which boosts the power output to the atomizer. Because of the use of heavier grade materials to allow for more durability and the fact that the only disposable part is the removable batteries, technically these are not considered to be disposable and can be expected to last more into the years category, as opposed to months like the ego variety. These use larger batteries, and hense longer vape time between battery charges. When the battery dies, you remove it and put in another,
vaping continues. Vape times between battery changes vary from 9 to 19 hours, although it is not uncommon to hear people say an 18650 battery can last them up to two full days.
There are economical differences between the two classes of PVs. The ego variety, being it is a disposable, can be purchased for under $30. Once the battery is no longer able to take a recharge, it must be thrown away.
The tube mods, because of the more durable parts and construction, cost more; generally starting around $40 and on up into the hundreds depending upon manufactured refinements, materials used, special electronics and other features. Only the rechargeable batteries are disposable, with an expected lifetime of one year, generally speaking, and costing between $6-14 each.
With that said, let the fun begin...
