US Carrier Compatibility: Designed for T-Mobile & Verizon networks exclusively.Verizon Activation: For instructions on setting up on the Verizon network, please refer to our forum, Facebook page, or contact customer support.Rugged Design, Compact Size: Small 4-inch screen, durable and rugged construction for reliable performance in challenging environments.Robust Durability with IP68 Rating: Built to withstand the elements, the Unihertz Atom L boasts an IP68 water-resistant and dustproof design, ensuring reliable performance even in challenging conditions.Global Connectivity, Dual SIM Support: Unlocked for worldwide use, offering flexibility with dual SIM card slots for seamless connectivity wherever you go.Extended Battery Life: Equipped with a robust 4300mAh battery, providing long-lasting power for your daily adventures.Advanced Operating System: Runs on Android 11 for a smooth and up-to-date user experience with the latest features and improvements.