Apple is really good at nailing its second-generation products. The first iPhone was innovative, but the iPhone 3G was excellent. The first-generation iPad was a viable alternative to Android tablets of the day, but the iPad 2 blew them out of the water. And now the Apple Watch Series 2 has been released, promising a redesigned interface, faster operation, and new features like 50M waterproofing and GPS. It should be a winner, but let’s see what the critics think.