Feature set on this unit is not unlike many other variable voltage ecigarettes with some minor differences. There’s 4 buttons in total, each providing a positive click when pressed. The ON button has a dual function. Pressing it 5 times in quick succession turns the Gripper ON and OFF. While it’s ON pressing this button once will display the resistance for the attached atomizer or cartomizer for about 4-5 seconds, followed by the remaining battery voltage for another 3 seconds.
Plus and minus buttons are used to adjust the voltage in .1 increments from 3 to 6 volts. A nice touch is you can hold either of the +/- buttons down for continuous adjustment without needing to click for every increment. The device considers a battery drained when it reaches 3.4v, which is slightly higher than most that use a 3.2v setting. However, this is likely done to prolong the overall battery life. As expected there’s polarity protection in case you put the battery in incorrectly, short circuit protection and it will not function with any cartomizer or atomizer lower than 1.2ohms.
So one of the obvious differences from many other devices is the ergonomic shape. I prefer it much more than the large tube designs. The button to vape is at the top and there’s molded finger grips on the side. Initially I started using this device, as seemingly intended, with 4 fingers wrapped around it and thumb at the top. I quickly found this to be less than ideal. It put my thumb in an awkward position to actually press the button well, I think this way of holding it would work far better for someone with a smaller hand perhaps. Without really noticing it, I naturally transitioned to having my pinky on the bottom with 3 fingers wrapped around it. This pushes the unit up but feels just right in this position.