I just got a Nauteek Sail Computer...has more functions than Velocitek. Now has waypoints & routes so it is useful for distance racing.



While a regular GPS has some useful stuff (mapping)...these sailing specific units have a lot more to offer. They have race start countdown & timers; start line distance display, ability to set tacking angles manually or by tacking twice...this angle is then divided in half to approximate True Wind Direction...which is then used to indicate left/right shifts and for real VMG...not just VtoMark like a Garmin will give you.

Adjustable heading & speed display damping helps a lot on a sailboat...the numbers are more stable so you get a better feel for what small tuning changes are doing.

The Nauteek also has a bar graph display of variance in speed...very useful for improving your tacks/gybes during practice.

I'm thinking to mount the unit on the boom with a swivel fitting and some kind of line or lever on the mast so that mast rotation flips the display to the windard side each tack/gybe. Getting at the buttons is less critical on this unit..it switches to pre-defined display modes after the start, when rounding the top mark and again when rounding the bottom mark.