Connection Type: 2 metallic pins (usually gold-plated for better conductivity). May have a magnetic attachment or a clip-on design to hold the charger in place. Cable & Port: USB-A (most common) or USB-C (newer models). Cable length: Typically 30cm to 1m. Compatibility: Used for cheaper Chinese smartwatches, fitness bands, and some clones of Huawei/Xiaomi bands. Often fits no-name brands or older models that don’t use wireless charging. Power Specifications: 5V/0.5A to 1A (standard USB power). Low voltage, safe for small wearable devices. Design Variations: Some have an LED indicator (red/green light when charging). Flat or curved base to match the watch’s back shape.