Porodo Spectre 4G Cellular & Video Smart Watch - Battery Capacity 900mAh 3.85V Working Time 1-2 Days Standby Time 3-5 Days Operating System Android 8.1.0 Processor Quad Core ARM Cortex A1.4 53GHz Screen Resolution AMOLED 368 x 448 Video Support 1920 x 1080p 30fps Memory 2+16GB Charging Time 2 Hours