Re: My research on Speedometers and GPS
heres a little somethin i found on the navman s300 and r300. The s300 is geared toward inline skaters and the r300 is geared toward runners.
S300 Features
Current speed
Average speed
Maximum speed
Speed target zone (with acoustic signal)
Distance skated
Automatic timer
Time (ultra precise GPS satellite atomic time)
Date
Changeable cover
Ideal for comparing performance with friends
Easy operation with only two buttons
S300 Technical Specifications
Battery life up to approx. 16 hrs
Water resistant
Battery indicator
Temperature range -10°C to +50°C
Dimensions WxHxD: 79 x 78 x 27 mm
Weight approx. 120g (incl. battery and arm strap)
Speed accuracy +/- 0.3 km/h
Distance measurement accuracy +/- 2%
R300 Features
Distance ran
Current speed / pace
Average speed / pace
Maximum speed / pace
Pace / speed target-zone (with acoustic signal)
Automatic timer
Distance run per lap
Lap history (max. 50)
Calories burned
Current altitude (GPS)
Time (ultra precise GPS satellite atomic time)
Date
Changeable cover
Pace control and programmable target zone
Easy operation with only two buttons
R300 Technical Specifications
Battery life up to approx. 16 hrs
Water resistant
Battery indicator
Temperature range -10°C to +50°C
Dimensions WxHxD: 79 x 78 x 27 mm
Weight approx. 120g (incl. battery and arm strap)
Speed accuracy +/- 0.3 km/h
Distance measuring accuracy +/- 2%
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