International Model - No Warranty in US. Compatible with Most GSM Carriers like T-Mobile, AT&T, MetroPCS, etc. Will NOT work with CDMA Carriers Such as Verizon, Sprint, Cricket, Boost. - FCC ID: 2AFZZK9G Dual Nano sim 4G: LTE 1/2/3/4/5/7/8/12/17/20/28/32/38/40/41/66 3G: HSDPA 850/900/1700(AWS)/1900/2100 2G: Quad Band 128GB 8GB RAM, Qualcomm SM7150 Snapdragon 732G (8 nm), Octa-core, Adreno 618, Android 11, MIUI 12 6.55" FHD+ AMOLED DotDisplay,2400x1080, 402ppi, Refresh rate: 60/90Hz, Aspect ratio: 20:9 Rear Camera: 64MP, f/1.8 + 8MP, f/2.2 + 5MP, f/2.4, Front Camera: 16MP, f/2.5, Bluetooth 5.1, 4250mAh battery 6.55" FHD+ AMOLED DotDisplay,2400x1080, 402ppi, Refresh rate: 60/90Hz, Aspect ratio: 20:9