Our powerbank for Samsung Gear S2 is part of wireless charger series and can arrive to charge about 5 times the smartwatch so you can use it during the full week. There are some hours to let you to have your powerbank fully charged one time is discharged. (You can see this when a green flashing light will flash continuously). The choice on the best batteries was Panasonic, because the model we choosed represented the best for long lasting, efficiency and energy saving. The choice about the classic charge, like the home 110/220V, was made because the fast charge can dramatically slower the life cycle of same batteries and the same about the battery of smartwatch, not only... the same smartwatch battery could also be damaged with fast charge. One time is charged, the couple powerbank/smartwatch can be put either vertically or horizontally, and it will function anyway! And since it is ultraportable, you will be able to put during charging wherever you want, in your bag, suitcase, handbag, shoulder bag, luggage, backpack, without problem! After about two hours the system stops the charger so to save energy for the next charge. An additional usb will be able to charge also another accessory or above all your smartphone, and this til 3 times (it depends on your model). Again, an adjustable screw will let you to fix any kind of metal strap for your smartwatch, (in case you should have a smartwatch with metal strap). During production phase we will realize customized models so you will be able to choose the one you like. For all these characteristics, our battery charger is an incredible and very useful instrument for your smartwatch, we could say the perfect partner for your smartwatch. Finally, al is not an idea or project, but a real and fully functional instrument, with functionality since the beginning, when three years ago we started with this project. All our images are real instruments, tested. maybe with some small aesthetic defect again, but fully functional and ready for the presale! And no one of our powerbank gave us problems on any smartwatches since the beginning.