Apache Smart Watch Altimeter Barometer Compass Temperature Display 50m Waterproof Outdoor Sport Digi worth to buy? Thanks for it if those of you who have purchased Apache Smart Watch Altimeter Barometer Compass Temperature Display 50m Waterproof Outdoor Sport Digi could share about what you think of the product. I would love any extra info, as it is quite pricey as $79.99 and I just want to know it is good before paying for it.