Need a GPS like Garmin Foretrex, but cheaper

Hello everyone from Greece!

I found this forum and a thought I should ask the experts!

I am looking for a device that has the same characteristics as a Garmin Foretrex (e.g 101) but much cheaper (let's say half the price).

Allow me to explain why, what etc:

- It will be used in an amateur Enduro race (softer that the redbull romaniacs )
- a mass purchase will be made (30+ devices)
- needs to be small, with wrist strap
and have some more features like:
- record route, waypoints
- save route and upload it to other devices
- saw the direction (e.g. 'next waypoint 200m. North')
- Information about the course (turn, off course, in course)
- battery lasting maybe 8 hours

So, please feel free to ask me anything, in order to further clarify what is suitable.

Thank you guys,
Yannis

PS. My knowledge of GPS device is very limited. Sorry for the potentially wrong definitions