【5.7-inch HD+ screen & 5580mAh Battery】 This Rugged Unlocked Smartphone is equipped with 5.7-inch HD+ and a thickened glass plate to upgraded toughness. And cell phone has a 5580mAh high-capacity battery, which guarantees 120 hours of standby and 12 hours of worry-free gaming time. What's more, the unlocked cell phone also supports a variety of convenient functions such as Fingerprints, Face ID, NFC, and OTG,etc..【A Reliable Rugged Phone】Rugged Unlocked Smartphone support [MIL-STD-810G] Drop Proof and IP68 Waterproof, can survive from 5-feet dropping, 2 hours immersion under 5-feet water and resist 99% of dust. Moreover, it can work normally in the temperature range of -30°C (-22°F) to 60°C (140°F). No more screen cracking, confidently take it with you to travel or outdoor sports..【3GB ROM + 128GB Expand】 BV4900 smartphone is powered by the energy-saving MT6761 Quad-core 2.0GHz processor, which provides your cell phone with excellent multitasking performance. In addition, 3GB RAM and 32GB ROM (128GB SD card support) make the rugged unlocked phone more smoothly, and you can store a large number of videos, photos and applications in your cell phone..【8MP Rear Camera and 5MP Front camera】 The cell phone is equipped with the 8MP Sony IMX214 main camera to capture the subject clearly, while the 5MP front camera only needs to look at the screen once to unlock the face. In addition, when you light up the screen of your smartphone, Face Unlock will immediately recognize you. Just take a look, the smartphone will unlock the fun for you instantly..【4G Network & Dual SIM】Please Confirm Your SIM Card's Compatibility with Your Carrier Before Order! This BV4900 Does NOT work with Verizon/ Sprint/ Boost Mobile/ US Cellular. Only compatible with GSM Carriers like AT&T, T-Mobile, Metro PCS, etc. Please contact us if you are not sure ! Besides, it supports 4G Network Dual SIM Dual Standby. Please always feel free to contact us for a satisfactory solution if there is any issues.