K8500 - Smartwatch Calypso - Free user manual and instructions
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| Product type | Smartwatch |
| Brand | Calypso |
| Model | K8500 |
| Case dimensions | 42 mm diameter, 12 mm thickness |
| Weight | 40 g (without strap) |
| Battery | Rechargeable lithium-ion battery 300 mAh |
| Battery life | Up to 7 days in normal use |
| Water resistance | IP68 (resists water up to 1.5 m for 30 min) |
| Screen | 1.3-inch TFT color, touchscreen |
| Connectivity | Bluetooth 5.0, compatible with iOS and Android |
| Main functions | Activity tracking (steps, calories, distance), heart rate, sleep, notifications, stopwatch, timer, alarm |
| Sensors | Accelerometer, optical heart rate sensor |
| Care and cleaning | Clean with a soft, dry cloth; avoid chemicals |
| Safety | Do not expose to extreme temperatures (0-40 °C); avoid strong shocks |
| Spare parts and repairability | Battery replaceable at authorized center; standard interchangeable strap |
| General information | 2-year warranty; manual available in PDF |
Frequently Asked Questions - K8500 Calypso
How to pair the K8500 watch with my smartphone?
Download the Calypso Fit app from the App Store or Google Play, enable Bluetooth, open the app, and follow the instructions to add a device. The watch will appear as 'K8500'.
What is the battery life?
Battery life is about 7 days in normal use (with notifications and activity tracking). It may vary depending on usage.
Is the watch waterproof?
Yes, it is IP68 certified, meaning it resists fresh water up to 1.5 meters deep for 30 minutes. Avoid sea water or hot showers.
How to reset the K8500 watch?
Go to the watch settings, select 'Reset', then confirm. You can also long-press the power button for 10 seconds.
Can I change the strap?
Yes, the strap is standard (width 20 mm). You can replace it with a strap of the same size.
How to measure heart rate?
From the main screen, swipe to access widgets, select the 'Heart rate' widget. Measurement starts automatically; stay still.
Are notifications supported?
Yes, the watch displays notifications for calls, SMS, and selected apps. Enable notifications in the Calypso Fit app.
How to charge the watch?
Use the provided magnetic charging cable. Attach it to the contacts on the back of the watch. Full charging time is about 2 hours.
What to do if the watch does not turn on?
Make sure it is charged. Plug it into the charger for at least 30 minutes. If it still does not respond, hold the power button for 10 seconds to force restart.
How to update the firmware?
Connect the watch to the Calypso Fit app, go to 'Settings' then 'Firmware update'. The app will check and install the latest version if available.
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