I used my dad's Fitbit charge 2 thinking I could do this but later found out it needs to be constantly synced up with my phone's GPS for tracking.
After searching on the net what device has a built in GPS and wasn't as big as a smart watch (also because I already wear my analogue watch on my right wrist) I came across the Garmin Vivosport.
In brief here is a summary of pros and con of using this device for about a week.
Pros
- Small footprint of device compared to others (built in GPS)
- Features more activity motions (VO2 Max, Stress levels)
- Waterproof (to a certain degree)
- The double tap function is not consistent and not responsive.
- The menus are a bit intrusive.
I've been out on a group session run and just completed a half marathon yesterday and pleased to say the GPS lock and tracker worked wonders for what I need it to do. So instead of carrying an arm strap for my phone I can now leave this behind and when I paired it up as I got back to my car it syncd everything together.
At the moment I've only used this for less than a week but so far happy with the product itself and would recommend this to anyone who wants a low profile GPS tracker. The setup process is something a little bit cumbersome but after once I got around it its now fine. Stairs counter is a little off but its not something I particular care about, And I have read the reports on the strap braking so will be careful when putting it on and off.
I'll be keep my eye out on the forums and updating this thread over due course with my personal experience.