Q50 GPS Tracker Smart Watch for Kids, Support SIM Card / Anti-lost / SOS Call / Location Finder / Re worth to buy? Thanks for it if those of you who have purchased Q50 GPS Tracker Smart Watch for Kids, Support SIM Card / Anti-lost / SOS Call / Location Finder / Re could share about what you think of the product. I would love any extra info, as it is quite pricey as $31.38 and I just want to know it is good before paying for it.