Eleaf iStick 100W contains kinds of protection measurements!

The battery door with 4 magnets on both the door and the device is great though, it's one of the only battery doors the stay completely put with no movement in it at all which is awesome, it also blends in fairly well and fits super flush. It also has a spring loaded 510 which is great but it's also fairly standard, and almost a necessity now with all of the tanks with different length connection pins on the market. The istick has a lot of inbuilt protection as well which is great: Advanced Temperature Alarm Function, Low Voltage Protection, Temperature Protection, Atomizer Low Resistance Protection, Short Circuit Protection and Over Charge Protection. While using this device with high-amperage batteries like the 25r's from Samsung it's pretty safe to be rocking a 0.3 ohm coil at 75 watts. If the safety of vaping practice is what you are caring and also you would like cloud vapor production, strongly suggest you giving iStick 100W a try!