Introduction
The ZGO 663X Multifunctional Sports Watch is designed for men, boys, and girls, offering a blend of style and utility. This digital electronic watch features IP65 professional waterproofing, a pedometer for intelligent step counting, a chronograph, and a silent vibration alarm clock. Its thin and lightweight design makes it comfortable for daily wear and various sports activities. This manual provides detailed instructions to help you get the most out of your ZGO 663X watch.

Setup
Charging the Watch
Before initial use, ensure your watch is fully charged. The ZGO 663X features convenient USB direct charging.
- Remove the host (watch module) from the silicone wristband.
- Insert the charging head of the host directly into any standard USB port (e.g., computer, USB wall adapter).
- The watch display will indicate charging status. A full charge provides approximately 30-40 days of standby time.


Operating Instructions
The ZGO 663X watch operates using two buttons, K1 and K2, located on the side of the watch face. These buttons are used for navigation and setting adjustments.

Button Functions
- K1 Button:
- Battery Display: Long press K1 when there is no display on the screen to show the remaining battery power.
- Clear Steps: Long press K1 to clear the current number of steps and start counting again.
- Alarm On/Off: Long press K1 to turn the alarm clock on or off.
- K2 Button:
- Adjust Height/Weight (for Pedometer): After long pressing K1 to clear steps, long press K2 to adjust your height. The "height" value will flash. Adjust the value with the K1 button. Long press K2 again to switch to weight adjustment, and adjust with K1.
- Adjust Alarm Time: When the alarm clock is on (after long pressing K1 to enable it), long press K2 to adjust the alarm clock time. The "yes" indicator will flash. Adjust the hour with the K1 button. Long press K2 to switch to minutes, and adjust with K1.
Key Features and Modes
- Time Display: Shows current time in digital format.
- 3D Intelligent Step Counting (Pedometer): Accurately records your daily steps and distance.
- Vibration Alarm Clock: Provides a silent vibration reminder to wake you up without disturbing others. The upgraded version includes two sets of alarm clocks for stronger vibration.
- Sleep Monitoring: Records sleep information every night, including sleep duration, deep sleep, and light sleep.
- Stopwatch Timing: For tracking activity durations.
- Calorie Detection: Estimates burned calories to help monitor your fitness.
- Distance Monitoring: Tracks the distance covered based on your steps.
- Temperature Display: Shows the current temperature.


Maintenance
- Cleaning: Wipe the watch and strap regularly with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, ensuring no moisture enters the watch module.
- Water Resistance: The watch is IP65 professional waterproof, suitable for hand washing, face washing, and rainy days. It is not recommended for swimming, showering with hot water, or prolonged submersion.
- Storage: Store the watch in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the watch frequently. Charge it when the battery indicator is low.

Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Watch display is blank | Low battery or powered off. | Long press K1 to check battery. Charge the watch if battery is low. |
| Incorrect time displayed | Time not set correctly. | Refer to "Operating Instructions" for setting the alarm time, which uses the same button logic for time adjustment. |
| Pedometer not counting steps accurately | Incorrect height/weight settings or improper wearing. | Ensure the watch is worn snugly on your wrist. Re-adjust height and weight settings using the K1 and K2 buttons as described in "Operating Instructions". |
| Alarm not vibrating | Alarm is off or time is incorrectly set. | Long press K1 to ensure the alarm is turned on. Re-set the alarm time using K1 and K2 buttons. |
Specifications

| Feature | Detail |
|---|---|
| Brand | ZGO |
| Model | 663X |
| Style | Sports, Fashion & Casual |
| Movement Type | Electronic Movement (Imported IC) |
| Display Type | Digital (LED Screen) |
| Watch Type | Unisex (Male, Female, Boys, Girls) |
| Case Shape | Rectangle |
| Case Material | ABS (Injection Molding Process) |
| Case Thickness | 9mm |
| Dial Diameter | 15mm |
| Dial Window Material Type | Plastic |
| Strap Material | Silicone (Integrated Strap) |
| Band Width | 17mm |
| Band Length | 21cm |
| Wearing Range | 14.5cm - 19.5cm |
| Clasp Type | Snap Button (Adjustable Double-Buckle Design) |
| Water Resistance | IP65 Professional Waterproof (3Bar) |
| Battery Type | 50mAh Lithium Battery |
| Standby Time | 30-40 Days |
| Weight | 18 grams |
| Features | Stop Watch, Water-Resistance, Alarm, Week Display, Pedometer, Sleep Monitoring, Calorie Detection, Distance Monitoring, Temperature Display |
| Certification | CE |
| Origin | Mainland China |
User Tips
- No App Needed: This watch operates independently without the need for a smartphone application, making it simple and straightforward to use.
- Silent Wake-Up: Utilize the vibration alarm feature for a personal and silent wake-up call that won't disturb others around you.
- Comfortable for Exercise: The sweat-guiding pattern design of the silicone strap helps keep it dry and comfortable during long periods of wear and exercise.
- Long Battery Life: With up to 40 days of standby time, you won't need to charge your watch frequently.
Warranty and Support
ZGO is committed to providing quality products and full after-sales support. If you encounter any issues or have questions regarding your ZGO 663X watch, please contact the seller or ZGO Official Store customer service for assistance. Keep your purchase records for warranty claims.