The Garmin GPSMAP 64s is a rugged, handheld GPS device featuring a high-sensitivity GPS and GLONASS receiver, a 2.6-inch sunlight-readable color display, a built-in 3-axis electronic compass with barometric altimeter, wireless connectivity via ANT+® and Bluetooth®, and support for preloaded TOPO U.S. 100K maps. It supports paperless geocaching, has a microSD™ card slot for additional maps, and offers up to 16 hours of battery life. Below are key sections for safety, features, setup, operation, and troubleshooting.
Key components: High-sensitivity GPS/GLONASS receiver, 3-axis compass with barometric altimeter, 2.6" color TFT display, ANT+® and Bluetooth® wireless technology, microSD™ card slot.
| Feature | Description |
|---|---|
| GPS/GLONASS Receiver | High-sensitivity for improved performance in challenging environments |
| 3-Axis Compass | Tilt-compensated electronic compass |
| Barometric Altimeter | Monitors weather and tracks altitude changes |
| Wireless Connectivity | ANT+® for sensors; Bluetooth® for smartphone connectivity |
| Display | 2.6-inch sunlight-readable color TFT (160 x 240 pixels) |
| Memory | 4 GB internal; microSD™ card slot for expansion |
| Battery Life | Up to 16 hours (typical use with 2 AA batteries) |
| Durability | IPX7 water rating; withstands immersion in 1 meter of water |
| Preloaded Maps | TOPO U.S. 100K with routable roads |
| Paperless Geocaching | Download and view geocache details directly on the device |
Unpack and inspect contents. Install batteries and power on the device.
WARNING! Use only recommended battery types. Do not mix old and new batteries or different types.
Navigate menus using the joystick and buttons.
CAUTION! For accurate compass readings, hold the device level and away from magnetic interference.
Front Panel: POWER key, MENU key, Zoom IN/OUT keys, Joystick (press to ENTER/MARK).
Side Buttons: QUIT, PAGE (cycles through data pages), FIND (opens search menu).
Menus: Main Menu provides access to: Map, Compass, Trip Computer, Altimeter, Calendar, Geocaching, Setup, and more.
Settings: Access via Setup menu. Configure System (language, units), Display (backlight, orientation), Sensors (calibrate compass/altimeter), Bluetooth®, Profiles.
Use preloaded maps or install additional maps via microSD™ card.
Tip: For best GPS accuracy, ensure you have a clear view of the sky.
Connect to sensors and smartphones for expanded functionality.
WARNING! Keep the device away from strong magnetic or electrical fields during wireless operations.
Supports paperless geocaching when loaded with GPX files.
CAUTION! Respect the environment and local regulations when geocaching.
Clean with a soft, dry cloth. Do not use harsh chemicals or solvents.
Battery Care: Remove batteries if the device will not be used for several months. Store in a cool, dry place.
CAUTION! Do not immerse the device in water beyond 1 meter or for longer than 30 minutes, despite its IPX7 rating. Do not charge wet batteries.
FCC Compliance: This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. Contains FCC ID: IPH-04021. IC: 1792A-04021. For detailed regulatory and compliance information, visit www.garmin.com/compliance. © 2012-2025 Garmin Ltd. or its subsidiaries. Garmin and the Garmin logo are trademarks of Garmin Ltd. or its subsidiaries.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Device will not power on | Dead/incorrect batteries | Install fresh, recommended AA batteries. Check polarity. |
| Poor GPS accuracy | Obstructed view, weak signal | Move to an open area with a clear view of the sky. Wait for satellite acquisition. |
| Compass is inaccurate | Need calibration, magnetic interference | Hold level and calibrate (Setup > Sensors > Compass > Calibrate). Move away from metal objects. |
| Bluetooth not connecting | Phone pairing issue, distance | Ensure Bluetooth is enabled on phone. Delete old pairing and re-pair. Stay within range (~10 m). |
| Maps not displaying | Map file corrupted or in wrong location | Ensure map file (.img) is in \Garmin folder on microSD™ card. Try a different map file. |
Reset: For persistent issues, perform a soft reset by holding the POWER key for 15 seconds. A master reset (erases all user data) is available in Setup > System > Reset.
Support: For further assistance, visit support.garmin.com or contact Garmin Product Support.