【Meticulous Workmanship】Strictly manufactured body achieves military-standards, sturdy and durable, helping you easily cope with different serious environments and challenges.
【Exquisite Display】1.85" large IPS screen presents clear picture quality even in the sun. Skin-friendly silicone strap is breathable and comfortable to wear.
【Multiple Sport Modes】K55 supports up to 24 motion modes with comprehensive recording of exercise data. Let you exercise more scientifically.
【Long Battery Life】350mAh large battery with low power chip provides up to 20 days of super long standby time, farewell to frequent charging.
【Convenient BT Call】With waterproof speaker, you can directly dial / answer / reject a phone call, and check contacts / call logs on the watch.
Features: 【Meticulous Workmanship】Strictly manufactured body achieves military-standards, sturdy and durable, helping you easily cope with different serious environments and challenges.  【Exquisite Display】1.85" large IPS screen presents clear picture quality even in the sun. Skin-friendly silicone strap is breathable and comfortable to wear.  【Multiple Sport Modes】K55 supports up to 24 motion modes with comprehensive recording of exercise data. Let you exercise more scientifically. 【Long Battery Life】350mAh large battery with low power chip provides up to 20 days of super long standby time, farewell to frequent charging.  【Convenient BT Call】With waterproof speaker, you can directly dial / answer / reject a phone call, and check contacts / call logs on the watch.  【Health Monitor】Accurately record your heart rate, blood pressure, blood oxygen and sleep data, helping you adjust yourself for a healthier lifestyle.  【User-Defined Watch Faces】A variety of fashionable dials are available for you. You can also customize exclusive dials with your own pictures.  【Smart Reminder】After connected to the phone, it will provide synchronous display of message, call or social APP to remind you of important information. 【More functions】AI Voice assistant, Breath training, Music control, Remote camera, Calculator, Weather, Alarm clock, Stopwatch, Timer, Find phone, Theater mode, etc.  Note: * Please read the user manual carefully before use. * There may be 1-3mm error due to manual measurement. * There may be slight difference in color due to shooting angle and light. Please refer to the real object. Parameters: Screen: 1.85" Full-touch Screen  Resolution: 240 * 280 BT: 5.0 Compatibility: Android 4.4 and above or iOS 8.0 and above Chip: Realtek8762DT Memory: Flash 64MB Battery Capacity: 350mAh Working Time: 5-7 days  Standby Time: about 20 days  App: Da Fit Specifications: Brand: LEMFO Model: K55 Case Material: Alloy+Plastic  Strap Material: Silicone  Color: Black / Jungle Green / Earth Yellow (Optional) Water-Resistant Level: IP67  Dial Size: 54 * 44mm Dial Thickness: 12mm Strap Width: 22mm, compatible with universal quick-release 22mm straps  Item Weight: 64g / 2.26oz Package Size: 12.5 * 8.5 * 7cm / 4.92 * 3.35 * 2.76in Package Weight: 169g / 5.96oz Package List: 1 * Smart Watch 1 * Charging Cable 1 * User Manual (English, French, German, Italian, Spanish, Japanese)