Does this pad actually charge my phone at 9W, or just up to 9W?
Only when the conditions line up. Samsung rates the pad at 9W, at 9 volts and 2 amps, and notes it needs an Adaptive Fast Charging or PD-compatible travel adapter to reach its top rate; a basic brick won't unlock it. Treat 9W as a ceiling, not a guarantee: a 0-to-100 percent charge on a Galaxy S21 takes just under 4 hours, which is not ultra fast. Charging speed is one of the less consistent parts of the experience.
Why might my phone not charge overnight?
Coil alignment. Qi charging requires the coil in your phone to sit close to centered over the coil in the pad, and placement is this pad's weakest point. Set the phone down off center and you can wake up to a dead battery: it has to be centered or it won't charge at all, and the small status light is the only real-time cue. A thick case can make this worse, so a slim or bare phone gives the coils the best chance of lining up.
Is the wall adapter included, or do I need to buy one separately?
It's included. The box holds both the wall charger and the wireless pad, so it ships with the adapter needed to reach the pad's rated 9W, you don't need to already own a compatible fast-charge brick. The connector on the pad's cable is USB Type-C. Worth flagging because plenty of wireless pads in this price range sell the pad alone and leave sourcing the right adapter to you.
Which phones is this actually compatible with?
Samsung calls it universally compatible with Qi phones and says it works with Android and Apple devices broadly, but the phones it actually names are LG, Samsung and iPhone, with three specific devices, the iPhone 8, Galaxy Note5 and Galaxy S10, which reads like older reference hardware rather than an updated list. Any Qi-certified phone should work given the shared standard, but Samsung doesn't explicitly confirm brands outside that short list.
Is this pad reliable long-term, or does it fail early?
Reliability is uneven, and both outcomes happen. One owner who liked the charger's look and speed reports it stopped working entirely after two months. Others use it daily for months without complaint, including as a deliberately slow, gentle overnight charger to reduce battery wear. The pad carries a 1-Year Manufacturer warranty, which is the practical backstop if you land in the early-failure group.
Should I buy this if I want the fastest possible wireless charge?
Probably not as a first choice. The 9W rating is real but requires the included PD or Adaptive Fast Charging adapter to reach, and even then a full 0-to-100 percent charge on a Galaxy S21 takes around 4 hours, closer to steady overnight charging than a quick top-up. Speed is not its strength. It suits a set-and-forget nightstand charger more than a fastest-possible-charge pick, and it works well used exactly that way, deliberately, overnight.
