GEOID HS800
Contents
GEOID HS800 Heart Rate Monitor Armband User Manual
Model: HS800
Introduction
The GEOID HS800 Heart Rate Monitor Armband utilizes advanced optical sensor technology to provide accurate and continuous real-time heart rate monitoring during various physical activities. This device is designed to help users track and analyze their heart rate data on compatible smartphones, tablets, and other fitness devices, supporting both Bluetooth and ANT+ dual protocols.
What's in the Box
- GEOID HS800 Heart Rate Sensor
- Adjustable Armband
- Magnetic Charging Cable
- User Manual

Image: The GEOID HS800 Heart Rate Monitor Armband, showing the main unit attached to the black perforated armband.
Product Features
- High Accuracy Optical Sensor: Provides real-time heart rate data with an accuracy of ±1 BPM.
- Dual Protocol Support: Compatible with both Bluetooth and ANT+ devices for versatile connectivity.
- Wide Application: Suitable for various exercise scenarios including cycling, running, hiking, yoga, strength training, and general fitness.
- IP67 Waterproof Rating: Designed to withstand heavy sweating and splashes. Not suitable for swimming.
- Long Battery Life: Offers up to 45 hours of continuous operation on a single charge.
- Magnetic Charging: Convenient and fast charging mechanism.

Image: The GEOID HS800 heart rate monitor shown with water splashes, illustrating its IP67 waterproof rating.

Image: The GEOID HS800 heart rate monitor connected to its magnetic charging cable, highlighting its 45-hour ultra-long battery life.
Setup
1. Charging the Device
- Connect the magnetic charging cable to the charging contacts on the back of the HS800 sensor.
- Plug the USB end of the charging cable into a standard USB power adapter (not included) or a computer USB port.
- The indicator light on the device will show charging status. A full charge provides approximately 45 hours of use.
2. Wearing the Armband
- Attach the HS800 sensor to the armband.
- Place the armband on your upper arm, either on the bicep or forearm, ensuring the optical sensor is in direct contact with your skin.
- Adjust the strap for a snug, comfortable fit. It should be tight enough not to slip during exercise but not so tight as to restrict circulation.
3. Powering On/Off
- To power on, press the button on the device. The indicator light will flash.
- To power off, press and hold the button until the indicator light turns off.

Image: The underside of the GEOID HS800 heart rate monitor, displaying the green optical sensor lights and charging contacts.
Operating Instructions
1. Connecting to Devices
The HS800 supports both Bluetooth and ANT+ connectivity, allowing it to pair with a wide range of fitness devices and applications.
- For Bluetooth Connection:
- Ensure Bluetooth is enabled on your smartphone, tablet, or fitness device.
- Open your preferred fitness application (e.g., Zwift, Strava, Wahoo Fitness).
- Navigate to the app's sensor or device pairing settings.
- Select the HS800 from the list of available devices to connect.
- For ANT+ Connection:
- Ensure your cycling computer, smartwatch, or gym equipment supports ANT+.
- Refer to your device's manual for instructions on pairing ANT+ sensors.
- The HS800 should appear as a heart rate sensor. Select it to establish a connection.
2. Heart Rate Monitoring
Once connected, the HS800 will transmit your real-time heart rate data to the paired device or application. You can monitor your heart rate zones, track performance, and optimize your training based on this data.

Image: A smartphone displaying heart rate zones and a cycling computer showing speed and heart rate, connected to the GEOID HS800 via Bluetooth and ANT+.

Image: A collage of six different exercise scenes including cycling, running, hiking, yoga, strength training, and general fitness, indicating the versatility of the HS800.
Maintenance
Cleaning
- After each use, especially after heavy sweating, gently wipe the sensor and armband with a damp cloth.
- For thorough cleaning, the armband can be hand-washed with mild soap and water. Ensure the sensor is detached before washing the armband.
- Do not use abrasive cleaners or solvents on the device.
- Ensure the sensor is completely dry before charging or storing.
Storage
- Store the HS800 in a cool, dry place away from direct sunlight and extreme temperatures.
- If storing for an extended period, ensure the device is fully charged before storage to preserve battery health.
Troubleshooting
- Device not powering on: Ensure the device is fully charged. Connect it to the charging cable and check if the charging indicator lights up.
- Cannot connect via Bluetooth/ANT+:
- Ensure the HS800 is powered on and within range of your receiving device.
- Check that Bluetooth/ANT+ is enabled on your receiving device.
- Close and reopen the fitness application.
- Restart both the HS800 and your receiving device.
- Ensure no other devices are currently connected to the HS800.
- Inaccurate heart rate readings:
- Ensure the sensor is placed correctly on your upper arm and is in firm contact with the skin.
- Clean the optical sensor window to remove any dirt or sweat residue.
- Avoid placing the sensor over tattoos or scars, which may interfere with optical readings.
- Charging issues: Ensure the magnetic charging cable is securely attached to the sensor's charging contacts. Try a different USB power source.
Specifications
| Attribute | Detail |
|---|---|
| Model Name | HS800 |
| Brand | GEOID |
| Sensor Type | Optical |
| Wireless Protocol | ANT+, Bluetooth |
| Heart Rate Range | 40-220 BPM |
| Battery Type | Rechargeable Lithium-Ion |
| Battery Life | 45 Hours |
| Waterproof Rating | IP67 |
| Material | Plastic |
| Color | Black |
| Weight | 11g |
| Sensor Dimensions | 44*31*11mm |
| Strap Length | 36cm |

Image: The back of the GEOID HS800 product box, displaying detailed specifications and compliance information.
Warranty and Support
The GEOID HS800 Heart Rate Monitor Armband comes with a 1-year manufacturer's warranty from the date of purchase. For any product inquiries, technical support, or warranty claims, please contact GEOID customer service.
- Warranty Period: 1 Year Manufacturer Warranty
- Customer Service: 24-hour support available
- Returns: 30 Days for Return
- After-sales Service: Lifetime support
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