GPS SmartWatch With Barometer Altimeter Compass Bluetooth Call Waterproof Smart Watch Fitness Tracke worth to buy? Thanks for it if those of you who have purchased GPS SmartWatch With Barometer Altimeter Compass Bluetooth Call Waterproof Smart Watch Fitness Tracke could share about what you think of the product. I would love any extra info, as it is quite pricey as $65.43 and I just want to know it is good before paying for it.