Reliance Jio Phone 3 Specifications (Unofficial) operating systemAndroid v8.1 (Oreo)sim slotsDual SIM, GSM+GSMmodelJio Phone 3launch dateJuly 27, 2020 (Unofficial)custom uiAndroid GoReliance Jio Phone 3 – Gadgets Now www.gadgetsnow.com › Mobile Phones › Reliance Mobile Phones