Just a few words of advice for those thinking about fast wireless chargers. Fast charging does degrade the battery. Not by much and if not done regularly, the damage is minimal, but it isn't phone friendly. The slower you charge your phone, the better for it. Fast wireless charging generates a fair amount of heat. The Samsung fast chargers have fans built in. (Highly recommended) I have a Samsung S6 which has Wireless and fast charging. I find both to be really really useful. This is my approach: I reserve fast charging for cable only. The S6 comes with an adaptive fast charger and enabling the fast charging option in the battery settings is quick and easy. Its also free. I reserve normal charging for my wireless chargers i have at work and at home. Wireless chargers are not the most efficient things, so if you use them with piffling 0.5A plugs, they don't work properly (keep kicking in and out). I use old 2A tablet chargers that i have lying around. They work great. My wireless chargers cost €0.75c from amazon. i don't do fast wireless charging as it requires expensive chargers and i am cheap. In day to day use, my wireless chargers trickle charge my phone throughout the day, either at work or at home. This is the best for the phone's battery and keeps my phone fully charged. It is also super convenient to just plonk my phone on the charging mat when not in use. An added bonus is i usually know where my phone is (on the mat). If i have to have a quick top up for some reason, i simply plug the phone in using my Samsung charger. With fast charging set on by default in the settings, i don't have to change anything to get a rapid boost. Charging this way ensures there is a physical difference required for me to change my charging speed, gives my the maximum amount of ease and convenience, doesn't cost me a penny and is best for the phone. I've had my S6 for two years and my battery is still at 76% of its original capacity.