Product Comparison

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Montana® 680t
$599.99 USD
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GPSMAP® 276Cx
$699.99 USD and Up
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GPSMAP® 64st
$349.99 USD
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Print Remove this device from comparison.
Montana® 680t
$599.99 USD
Buy Now
Remove this device from comparison.
GPSMAP® 276Cx
$699.99 USD and Up
Buy Now
Remove this device from comparison.
GPSMAP® 64st
$349.99 USD
Buy Now

Touchscreen GPS/GLONASS device with preloaded TOPO maps and 8 megapixel camera

Versatile GPS/GLONASS navigator with internal antenna

Full-featured GPS/GLONASS device with sensors and TOPO maps

General

Physical dimensions 2.9" x 5.7" x 1.4" (7.48 x 14.42 x 3.64 cm) 7.5" x 3.7" x 1.7" (19.05 x 9.40 x 4.32 cm) 2.4" x 6.3" x 1.4" (6.1 x 16.0 x 3.6 cm)
Touchscreen
Display size 2"W x 3.5"H (5.06 x 8.93 cm); 4" diag (10.2 cm) 5.0" (127.0 mm) diagonal 1.43" x 2.15" (3.6 x 5.5 cm); 2.6" diag (6.6 cm)
Display resolution 272 x 480 pixels 800 x 480 pixels 160 x 240 pixels
Display type bright, transflective 65k color TFT, dual-orientation touchscreen; sunlight readable bright, sunlight readable WVGA display transflective, 65-K color TFT
Weight 10.2 oz (289 g) with included lithium-ion battery pack; 11.7 oz (333 g) with 3 AA batteries (not included)

15.9 oz (450 g) with included rechargeable pack; 14.6 oz (415 g) with AA batteries (not included)

8.1 oz (230 g) with batteries
Battery rechargeable lithium-ion (included) or 3 AA batteries (not included); NiMH or Lithium recommended rechargeable lithium-ion (included) or 3 AA batteries (not included); NiMH or Lithium recommended 2 AA batteries (not included); NiMH or Lithium recommended
Battery life up to 16 hours (lithium-ion); up to 22 hours (AA batteries) up to 16 hours (lithium-ion); up to 8 hours (AA batteries) 16 hours
Water rating IPX7 IPX7 IPX7
Memory/History 8 GB 8 GB (6 GB available to use) 8GB
High-sensitivity receiver
Interface high-speed USB and NMEA 0183 compatible high-speed USB and NMEA 0183 compatible high-speed USB and NMEA 0183 compatible

Maps & Memory

Preloaded maps yes (topographic) yes (topographic)
Ability to add maps
Basemap
Storage and Power Capacity microSD™ card (not included) microSD™ card (not included) microSD™ card (not included)
Waypoints/favorites/locations 4000 10,000 5000
Routes 200 250 200
Track log 10,000 points, 200 saved tracks 20,000 points, 250 saved tracks 10,000 points, 200 saved tracks

Sensors

Barometric altimeter
Compass Yes (tilt-compensated 3-axis) Yes (tilt-compensated 3-axis) Yes (tilt-compensated 3-axis)

Outdoor Recreation Features

Area calculation
Automatic routing (turn by turn routing on roads) Yes (with optional mapping for detailed roads) Yes (with optional mapping for detailed roads) Yes (with optional mapping for detailed roads)
Geocaching-friendly Yes (Paperless) Yes (Paperless)
Custom maps compatible
Hunt/fish calendar
Sun and moon information
Camera

yes (8 megapixel with autofocus; automatic geo-tagging)

no

Picture viewer

Garmin Connect™

Garmin Connect™ compatible (online community where you analyze, categorize and share data)

Additional

Additional
  • Map segments: 15,000
  • Wi-Fi: yes
  • ANT+: yes
  • Bluetooth: yes
  • Active weather: yes

Smart Notifications: yes

Live Tracking: yes (with Garmin Connect™ Mobile)