The VAPMOD V-Mod is a super compact thick oil vaporizer kit with a sleek design reminiscent of the iPod.  It has a sleek, minimalist design featuring a single button for intuitive operation.  The kit comes with a 1.2 ml thick oil cartridge and a 510 thread screw on magnetic connector ring.  The cartridge is a top fill design that has a unique feature to tighten it down.  You have to actually push the spring loaded drip tip in while tightening it to get a solid seal.  The cartridge is nicely constructed with a Pyrex glass tank and a ceramic coil.  There is also a 2 in 1 version available that gives you the thick oil cartridge as well as a wax cartridge.  The wax cartridge has a dual quartz rod design. 

You can adjust the voltage between 2.6V (Green), 3.2V (Yellow), and 4.0V (Red) by clicking the button 3 times.  The unit also uses the colors to indicate its battery life.  Green means 70% or more, Yellow is between 30% and 70%, and red means less than 30% battery life left.  You can also preheat a cartridge by pressing the button twice.  At just less than 2 inches by 2 inches and slightly more than 1/2 inch thick, this is a very compact well designed unit with ample battery life to keep you going!

Vapmod Vmod has a 900mAh battery, 510 thread, and an easy-to-check oil window. It also has 3 voltages, preheat, variable voltage.

Features:
900mAh Battery
Preheat Function
Single Button Operation

Specifications:
Battery Capacity:  900mAh
Charge Type:  Micro USB
Resistance Range:  0.5Ω - 3.0Ω
Voltage:  2.6V Green, 3.2V Yellow, 4.0V Red
Thread:  510 Thread
Built In Protections:  Short Circuit - Red Light Flashes 10 Times
                                 Overheat - Yellow Light Flashes 10 Times
                                 Over-Charge - Unit Will Stop Charging

In The Box:
1 V-Mod 900mAh Battery
1 1.2 ml Refillable Cartridge
1 Dual Quartz Rod Cartridge (with 2-in-1 only)
1 USB Charging Cable
1 510 Thread Magnetic Connector Ring
1 User Manual

Replacement Cartridges and Magnetic Connector Rings are available here.