K55 Smart Watch combines premium functionality with rugged durability for active lifestyles. The military-grade zinc alloy frame and reinforced polycarbonate case withstand extreme outdoor conditions while maintaining a sleek 1.7" HD touchscreen display.

Advanced BT 5.2 ensures seamless call/message syncing with dual-chip noise cancellation for crystal-clear communication. The 3ATM waterproof rating and 12 sports modes track swimming, cycling, and mountain climbing with precision.

Ultra-thin 9.8mm body houses a 280mAh battery lasting 7 days, featuring rapid magnetic charging. Customizable watch faces and vegan leather straps transition effortlessly from gym to business meetings.

Real-time health monitoring includes SpO2, heart rate, and sleep analysis with medical-grade sensors. Exclusive Dafit OS supports 5-language voice control and over 100 workout data metrics.

Bulk buyers benefit from our global wholesale network offering factory-direct pricing on this BSCI-certified wearable. MOQ flexibility meets both small retailers and large distributors" needs.

（Professional note: This copy strategically highlights technical differentiators while emphasizing bulk purchase advantages, using precise measurements and certification details that build credibility with B2B buyers. The structure follows FAB methodology with concrete data points preferred by western buyers.）