Yayusi S2 User Manual Repack -

Since physical manuals included with budget smartwatches are often very brief or poorly translated, I have compiled a comprehensive Unofficial User Guide below. This guide covers the standard functions and setup process for the Yayusi S2 series.

11. Environmental Responsibility

• Recycle the device at an authorized center at the end of its lifespan.
• Remove batteries before disposal (batteries are recyclable via local programs).

Specifications (typical / example)

• Bluetooth: 5.0
• Drivers: 45 mm full-range (example)
• Output power: 5–10 W RMS
• Battery: 1200–2000 mAh (typical)
• Charging: 5 V/1 A, 2–4 hours
• Weight: ~200–400 g
• Dimensions: compact portable (model dependent)

1. Getting Started

• Charging: Before first use, charge the watch fully.
  • Note: Most Yayusi models use a magnetic charging cable. Snap the magnetic end to the back of the watch (ensure the pins align with the gold contacts on the watch back).
  • Charging time is typically 2 hours.
• Power On: Press and hold the side button (or the single crown) for 3–5 seconds until the logo appears.
• Power Off: Go to Settings > System > Power Off (or press and hold the side button until the power menu appears).