Bluetooth Smart Watch DZ09 for iPhone/Samsung/HTC/Huawei/LG/Android Phone Wearable SIM/TF Wrist Watc worth to buy? Thanks for it if those of you who have purchased Bluetooth Smart Watch DZ09 for iPhone/Samsung/HTC/Huawei/LG/Android Phone Wearable SIM/TF Wrist Watc could share about what you think of the product. I would love any extra info, as it is quite pricey as $33.95 and I just want to know it is good before paying for it.