?【5580mAh Big Battery】Blackview BV4900 rugged smartphone unlocked is equipped with a 5580mAh high-capacity. It only takes 1.5 hours to brim the giant 8380mAh battery. It can guarante 120 hours of standby and 12 hours of worry-free gaming time.can provide 720 hours of standby time or call 32 hours or gaming for 10 hours. This rugged unlocked smartphone is equipped with 5.7-inch HD Display and a thickened glass plate to upgraded toughness. ?【3GB RAM + 32GB ROM + 128GB Expand】Blackview BV4900 rugged unlocked cell phones 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. What's more, it can support NFC and OTG convenient functions. ?【IP68 Waterproof & MIL-STD-810G Anti-drop】Blackview BV4900 rugged waterproof 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. ?【8MP Rear Camera and 5MP Front Camera】Blackview BV4900 rugged unlocked smartphone 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. The rugged mobile phone can also support Fingerprint unlock. ?【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. All Blackview cell phones purchased in our shop are guaranteed for 1 year. If you have any problems during use, please contact us.