Network bands:Supports 4G / 3G4G: FDD-LTE Band B1/B3/B5/B7/B8/B20/B284G: TDD-LTE Band B38/B40/B413G: WCDMA Band 1,5,8*Use of eSIM requires a wireless service plan. This service plan may be subject to certain restrictions of use on switching service providers and roaming (even after contract expiration). eSIM availability may vary depending on country/region and carrier. For more details, please visit: https://www.mi.com/global/support/esim*LTE stand-alone connectivity is only available for LTE versions. Stand-alone voice calling on LTE version requires initial pairing with an eligible Android 8.0 and above smartphone device and separate qualifying wireless plan. Your carrier may not support stand-alone voice calling, or only support the function in certain areas. Please check with your carrier for more information. If the paired phone is not turned on or not connected to a wireless network, stand-alone functionality will be limited.LTE SMS requires the phone to be connected in order to synchronize the SMS information on the phone. eSIM independent numbers do not support SMS functionality.Wireless Networks2.4GHz/5GHz Wi-FiBluetooth® 5.2