i use the fitbit one. I love it. But...
The device only works if you are going to use it. The device only works if you are going to challenge yourself otherwise it becomes a rather expensive accessory. The fitbit community on FB is awesome. There are constantly new challenges. Haven't really looked at the SP team.
That being said, you have to really think what you want out of the device. Then you find a device that will give that to you.
All the devices work and all the devices fail depending on the user.
| current weight: 250.0