Brand Name: Haylou Mechanism: No Origin: CN(Origin) SIM Card Available: No System: Proprietary OS GPS: No Type: On Wrist Compatibility: All Compatible ROM: <128MB Function: Passometer Function: Fitness Tracker Function: Sleep Tracker Function: Message Reminder Function: Call Reminder Function: Push Message Function: Chronograph Function: Alarm Clock Function: Speed Measurement Function: Heart Rate Tracker Function: Interactive Music Function: Calendar Function: Countdown Rear Camera: None Language: English RAM: <128MB Waterproof Grade: Professional Waterproof Multiple Dials: Yes Battery Capacity: 300-450mAh Network Mode: None Style: SPORT Screen Shape: ROUND Resolution: 240 x 240 APP Download Available: Yes Case Material: Alloy CPU Manufacturer: Mediatek Display Size: 1.28 inch Band Material: Silica Gel Application Age Group: Adult Battery Detachable: No Band Detachable: Yes SKU: 3AC05158 Color: Black Screen Size: 1.28 inch TFT Color Display Bluetooth Version: V5.0 Waterproof Grade: IP68 Waterproof Working Time: About 15-30 days Compatible System: For Android 4.4 or iOS 8.0 and above Feature A: Haylou Solar LS05 Smart Watches 2020 For Men Women Feature B: Haylou Solar Global Version Smartwatch Sport Waterproof Watches Sale Way: Drop Shipping and Wholesale Support