The iTorch IMP52D is about 2 times the width of an iPhone 4S and about 1/2 inch short. It feels very well made and light enough to where you won't notice it too much in your pocket. I recently took a trip to Vegas and used this on the plane to keep my iPad charged while playing some Fieldrunners. It was able to keep me in business throughout both planes rides and while I was at the hotel. I never did a full charge from 0% so I can't speak to how many charges you can get out of this, but I can say it was very nice to be able to carry around with me just in case my phone was low while I was out and about. This does not come with a wall charger, but you can use any usb charger you have. It does take several hours to get a full charge, and you can use the laser or flashlight while its charging, although I'm not sure why you would. The flashlight is decent and provides enough light to get around. The laser is a lot better than I was expecting, just like a normal laser pointer, although I don't really have a use for it personally. Overall I prefer this over the larger IMP500 for quick trips mainly because of the size of the unit. If you need more power, for longer, I'd recommend the larger units.