• The series 1 costs £299 and series 2 costs £399.
  • The series 1 is only splash resistant. Therefore if you are planning to swim or are unhappy to take it off for showers, go for the series 2.
  • On the Apple website it says that series 2 has a S2 dual core processor, however the series 1 has a S1 dual core processor. The speed is the same in both!
  • On the newer model (series 2), there is a GPS present so tracking is possible, along with many other compatibilities.
  • The newer model is heavier by 4.2g and had a deeper dimension of about 1mm.
  • I believe that they are both quite similar, apart from the excellent water resistance in series 2. They are both very helpful for sports training as they both have a heart rate sensor, accelerometer and a gyroscope.
  • As always feel free to comment below or contact me if you have my questions.