Philips Sapphire S616 was officially announced in November 2015 , Device released in November 2015 Mobile Network Support and BandPhilips Sapphire S616 have Dual Card Slots, Philips Sapphire S616 support all GSM Based network providers. Philips Sapphire S616 mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 900,HSDPA 2100, Philips Sapphire S616 also support LTE based