According to Ultra168, Suunto Ambit offers the following features:
- Rapid response built-in Waypoint GPS (SiRFstarIV chip)
- Built-in FUSED Accelerometer (linked to the GPS)
- 50 hour battery life (with 60 second interval GPS use)
- 3D Compass
- Accurate Barometric Altitude
- Real time Heart Rate Graph
- Temperature Measurement
- Highly responsive Speed and Pace training function using FusedSpeed integrated GPS Accelerometer
- Advanced Heart Rate Monitoring with built in PeakTraining Effect and Recovery Time function
- Water resistant to 100 meters
- Available in Black and Silver
- Built to Last Technology and sleek design.
In addition to this, some sources mention there is a positive/negative display switch.
This sure sounds like my dream GPS. I already have Suunto Core, but a GPS with ultralong battery life would be more fun to play with. Garmin Forerunner 910XT has about 20 hour battery life with continuous GPS, and Suunto Ambit will be in the same ballpark. They both use an USB cable for battery charging and data loading.
However what's really interesting is the new "60 second interval GPS use", which might well be good enough for a race like UTMB, where the cutoff is 46 hours. Still, I'd like to know some more details, like the size, weight and price of the watch...