Galaxy 5 watch 44mm. 10 bands, extra pins and tool, charger Operating System Wear OS Special Feature GPS Connectivity Technology Bluetooth Wireless Communication Standard Bluetooth Battery Cell Composition Lithium Ion GPS True * 1.4'' Super AMOLED, 450x450px 321ppi, Exynos W920 Dual-core 1.18GHz, 410mAh Battery, Android Wear OS 3.5, One UI Watch 4.5, Bluetooth, Wi-Fi * The Sapphire crystal glass face is 1.6x stronger to stand the test of the hardest days. Water-resistant. * Advanced Sleep Coaching analyzes sleep patterns and creates a 5-week program with helpful tips and checklists for better sleep habits. * 3-in-1 Bioactive Sensor - An improved, curved sensor design gets closer to your skin for more accurate heart rate and wellness readings. * Compatible with Android devices Only with Google Services. Supports SAMSUNG Pay. 4G LTE Bands: B2 (1900 MHz), B4 (1700 MHz), B5 (850 MHz), B12 (700 MHz) - eSIM. Cellular LTE model Compatible with GSM and CDMA Carriers like T-Mobile, ATandT, Verizon, etc. Contact Carrier to Register. * band.color : grey * water resistance level : water resistant