Introduction
The Garmin Forerunner 101 is a wrist-mounted GPS device designed for tracking running and walking activities. It provides essential data such as speed, distance, and pace using GPS satellite signals. This device is compact, lightweight, and waterproof, making it suitable for various outdoor conditions. It operates on two AAA batteries and features an easy-to-read display.

Image: Garmin Forerunner 101 device, showcasing its compact design and wrist-mount capability.
What's in the Box
Upon opening the packaging, ensure all components are present:
- Garmin Forerunner 101 Unit
- Adjustable Wrist Strap
- 2 AAA Batteries
- Quick Start Guide
- User Manual (this document)
Setup
1. Battery Installation
The Forerunner 101 operates on two AAA batteries. To install or replace batteries:
- Locate the battery compartment on the back of the device.
- Open the compartment cover.
- Insert two fresh AAA batteries, ensuring correct polarity (+/-).
- Securely close the battery compartment cover.
2. Initial Power On and Satellite Acquisition
For initial use, power on the device and allow it to acquire GPS satellite signals. This process may take several minutes, especially when used for the first time or after a long period of inactivity. For best results, perform initial satellite acquisition outdoors with a clear view of the sky.
- Press and hold the POWER button to turn on the device.
- The device will automatically begin searching for satellites.
- Once satellites are acquired, the device will display your current location data and time.
3. Adjusting the Wrist Strap
Adjust the wrist strap for a comfortable and secure fit. The device should be snug enough to prevent movement during activity but not so tight as to restrict circulation.
Operating Instructions
Basic Navigation and Menus
The Forerunner 101 features several buttons for navigation:
- POWER/LIGHT: Turns the device on/off, activates backlight.
- MODE: Cycles through main screens (e.g., Training, Map, History).
- UP/DOWN Arrows: Navigates through menu options or data fields.
- ENTER: Selects an option or confirms an action.
- LAP/RESET: Marks a lap during an activity, resets timers.
Starting an Activity
- Ensure the device has acquired GPS signals.
- Navigate to the Training screen using the MODE button.
- Press START/STOP to begin recording your activity. The timer will start.
- During the activity, you can press LAP/RESET to mark laps.
- To pause the activity, press START/STOP. Press again to resume.
- To end and save the activity, press and hold START/STOP until the save option appears, then confirm.
Using Virtual Partner
The Virtual Partner feature allows you to train against a pre-set pace and distance. This provides a visual representation of your performance relative to your goal.
- From the main menu, navigate to Virtual Partner settings.
- Set your desired pace and distance for the virtual partner.
- Start your activity. The display will show your progress against the virtual partner.
Marking and Navigating Locations
You can mark specific locations (waypoints) and navigate back to them or to your starting point.
- To mark a location: While on a data screen, press and hold a specific button (refer to quick start guide for exact button, typically ENTER or MODE in a specific context) to save your current position.
- To navigate: Go to the Map or Navigation menu, select a saved location or "Back to Start," and follow the on-screen directions.
Maintenance
Cleaning the Device
Clean the Forerunner 101 regularly to ensure optimal performance and longevity. Use a soft, damp cloth to wipe the device. Avoid harsh chemicals or abrasive cleaners.
Battery Care
Replace AAA batteries when the low battery indicator appears. For extended storage, remove the batteries to prevent leakage.
Water Resistance
The Forerunner 101 is waterproof. However, avoid submerging it beyond its specified depth rating (refer to specifications) and ensure the battery compartment is securely closed before exposure to water.
Troubleshooting
- Device not powering on: Check if batteries are correctly installed and have sufficient charge. Replace with fresh AAA batteries if necessary.
- No GPS signal: Ensure you are outdoors with a clear view of the sky. Initial acquisition can take longer. Avoid areas with dense tree cover or tall buildings.
- Inaccurate distance/pace: Ensure a strong GPS signal. Movement in areas with poor signal can lead to inaccuracies.
- Display issues: If the screen is unresponsive or shows unusual characters, try removing and reinserting the batteries to perform a soft reset.
Specifications
| Brand | Garmin |
| Model Name | Forerunner 101 |
| Screen Size | 1.5 Inches |
| Display Type | LCD |
| Special Features | Distance, Elevation, Speed, Time/Date Tracking |
| Connectivity Technology | GPS Antenna |
| Supported Satellite System | GPS |
| Mounting Type | Wrist Mount |
| Battery Type | 2 x AAA Batteries |
| Battery Life | Up to 15 Hours |
| Item Weight | 0.3 Kilograms (approx. 10.6 oz) |
| Water Resistance | Waterproof |
| Human-Interface Input | Buttons |
| Sport Type | Running |
Warranty and Support
Warranty Information
The Garmin Forerunner 101 comes with a 1-year warranty covering parts and labor from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by accident, abuse, misuse, water damage beyond specified limits, or unauthorized service.
Customer Support
For technical assistance, warranty claims, or additional product information, please visit the official Garmin support website or contact their customer service department. Refer to the quick start guide or Garmin's official website for current contact details.





