I have found that the Soleus GPS watches are widely available. I have searched to see where they can be purchased and found that they are available at Best Buy, Amazon, Dick's Sporting Goods and the Zappos site.
The gastrocnemius is a synergist of the soleus.
I personally haven't used a gps watch, but Garmin Forerunner 910XT Multisport GPS Training Watch seems like a pretty solid choice. It comes with a number of handy features (heart monitor, etc.) but it is on the more pricey side.
You can purchase a GPS running watch at most sports stores or any department store with a sports and electronics section. If not, you can purchase GPS running watches on any online retailer such as Amazon.
You can go directly to Garmin's website to purchase a garmin gps running watch. They have several styles to choose from and give detailed information on each watch.
GPS's are nice a usually easy to use. It is a personal opinion if a old fashioned compass which you must learn to use is better than a GPS watch which already has all the data downloaded onto it.
Right now there are a few soleus gps watch on sale. I do think that the soleus gps waches are worth the money as they are good quality and do a great job.
You can read a comprehensive review of Soleus Watches from a runner and blogger at the following link: http://www.runblogger.com/2012/01/soleus-gps-10-watch-review-minimalist.html He describes his own experience using the watch, which is a great article to read before making a purchase.
I think that there could be potential harm to the body if we don't watch the soleus while we exercise. I would just be carefull and strech b4 you exercise and watch your soleus muscle.
Try EastBay.com they have many of the newer Soleus watches for less. This website is also highly reviewed and a web store for everything sport. They have a large range of Soleus watches that they sell.
http://www.soleusrunning.com/ You could go here and pick out a soleus watch very easily. They have a variety of models and colors as well as a few sales so I am sure you could find one to suite your needs.
A GPS watch and GPS tablet are both effective options for navigation. The GPS watch is best for outdoor activities such as running, where one would not want to carry a tablet.
The options that are available on Garmin GPS watch is you can have your own gps, and you can download music on it and you can also put games on your gps whenever you get bored.
The Garmin approach s1 GPS watch is a more portable alternative to the traditional car based GPS system. The portability of the GPS watch is its biggest advantage. Unfortunately it does not have all of the capabilities of a car based GPS system.
The suunto gps watch can be bought online over the Internet from many stores. This gps watch puts you in the field. Its good if you aren't familiar of the area where your at.
Timax does make a running watch with GPS. Timex does make a GPS running watch, you can purchase one at your local dicks sporting goods store. That is where I would recommand.
I would not recommend buying a Polar GPS watch as an alternative to your typical GPS systems. While the Polar GPS is accurate for runners it is not accurate enough for a vehicle.
The Garmin Forerunner 405 GPS are an accurate brand of GPS and a good watch.