Blackview BV5300 Pro Rugged Phone, 4GB+64GB, IP68IP69KMIL-STD-810H, Face Unlock, 6580mAh Battery, 6.1 inch Android 12 MTK6765 Helio G35 Octa Core up to 2.3GHz, Network: 4G, OTG, NFC, Dual SIM Features 1. MTK6765 Helio P35 octa core 4 x A53 2.3GHz + 4 x A53 1.8GHzCPU, high performance, combine with 4GB+64GB, run faster and operate more smoothly. 2. 6.1 inch HD+ IPS 1560x720 screen, big view, vivid color. 3. 8.0MP S5K4H7 front camera, clear for video chat and selfie. 4. 13.0MP Hi1336 back camera with flash light, good for taking clear pictures. 5. Powered by 6580mAh high capacity battery, long time to use. 6. The rugged phone of the fine touch, slim body, IP68 waterproof dustproof shockproof. Network 1. 2G network frequency: - GSM: B2B3B5B8 2. 3G network frequency: - WCDMA: B1B8 3. 4G network frequency: - FDD-LTE: B1B3B7B8B19B20B28AB28B - TDD-LTE: B40