The Huawei Y6s is powered by 23 GHz Octa-core processor and it comes with 3GB of RAM The Huawei Y6s packs 32GB of internal storage that can be expanded via microSDXC dedicated slot The Huawei Y6s runs Android 90 Pie and is powered by a 3020mAh non-removable battery FREQUENCIES : COMPATIBLE TO USE WITH NETWORK SIM CARDS THAT WORKS ON SIM CARD 1: 2G : GSM 850 / 900 / 1800 / 1900 and/or 3G : WCDMA 850B5 / 900B8 / 1900B2 / 2100B1 and/or 4G : FDD LTE: 800B20 / 850B5 / 900B8 / 1800B3 2100B1 / 2600B7 : TDD LTE: 2300B40 / 250041 / 2600B38 SIM CARD 2: 2G : GSM 850 / 900 / 1800 / 1900 and/or 3G : WCDMA 850B5 / 900B8 / 1900B2 / 2100B1 and/or 4G : FDD LTE: 800B20 / 850B5 / 900B8 / 1800B3 2100B1 / 2600B7 : TDD LTE: 2300B40 / 250041 / 2600B38 IMPORTANT : PLEASE CHECK WITH YOUR NETWORK PROVIDER FOR COMPATIBILITY CHECK BEFORE YOU PURCHASE