Samsung Galaxy S20 Ultra 5G Cell Phone for AT&T: This Samsung Galaxy S20 Ultra 5G cell phone can perform more daily routines efficiently and is packed with power while equipped with an intelligent battery that's big enough to share. The 6.9" Infinity-O display creates near-perfect images and features high-quality cameras with 3D depth sensing and 100x Space Zoom capabilities, capturing more details to create a realistic image. Backward-compatible with 4G networks.