do function in connection z3 on smartphone and on this plan, ras easy to use. 2 days theoretical battery rechargeable via microUSB connection, in fact, the main criticism is the lack of customer support: no explanation on how deep sleep taken / light sleep (micromovement?), no explanation on the bike function for now silent even bicycle (any compatible accessory?), nothing on heart rate or blood pressure, the software exist smartphone using integrated flash camera but here nothing, really nothing ... there are models over 3x more expensive because having clock etc ... but nothing says if blackheads are then filled .... in conclusion, if you are tempted, I wear it when I write the comment, we must admit that this is also an additional daily penalty, synchronization, battery recharge every 2 days ... etc., notice to lovers
