Product Comparison

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Montana® 680t
$599.99 USD
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GPSMAP® 64st
$349.99 USD
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Quest®
$449.99 USD
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Montana® 680t
$599.99 USD
Buy Now
Remove this device from comparison.
GPSMAP® 64st
$349.99 USD
Remove this device from comparison.
Quest®
$449.99 USD

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

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) 2.4" x 6.3" x 1.4" (6.1 x 16.0 x 3.6 cm) 4.5"W x 2.2"H x 0.9"D (11.43 x 5.59 x 2.29 cm)
Touchscreen
Display size 2"W x 3.5"H (5.06 x 8.93 cm); 4" diag (10.2 cm) 1.43" x 2.15" (3.6 x 5.5 cm); 2.6" diag (6.6 cm) 2.2"W x 1.5"H (3.81 x 5.59 cm)
Display resolution 272 x 480 pixels 160 x 240 pixels 240 x 160 pixels
Display type bright, transflective 65K color TFT, dual-orientation touchscreen; sunlight readable transflective, 65K color TFT 256-color, high resolution reflective TFT with backlighting
Weight 10.2 oz (289 g) with included lithium-ion battery pack; 11.7 oz (333 g) with 3 AA batteries (not included) 8.1 oz (230 g) with batteries 5.5 ounces (155.92 g)
Battery rechargeable lithium-ion (included) or 3 AA batteries (not included); NiMH or Lithium recommended 2 AA batteries (not included); NiMH or Lithium recommended rechargeable lithium-ion
Battery life

up to 16 hours (lithium-ion)
up to 22 hours (AA batteries)

16 hours up to 20 hours
Water rating IPX7 IPX7 IPX7
High-sensitivity receiver
Interface high speed mini USB and NMEA 0183 compatible high speed mini USB and NMEA 0183 compatible
Memory/History 8 GB (user space varies based on included mapping) 8 GB (user space varies based on included mapping)

Maps & Memory

Preloaded maps

yes (TOPO U.S. 100K; not routable)

yes (TOPO U.S. 100K; not routable)

Ability to add maps
Basemap
Automatic routing (turn by turn routing on roads) Yes (with optional mapping for detailed roads) Yes (with optional mapping for detailed roads)
Map segments 3500 3000
BirdsEye 250 BirdsEye Imagery files 250 BirdsEye Imagery files
Includes detailed hydrographic features (coastlines, lake/river shorelines, wetlands and perennial and seasonal streams)
Includes searchable points of interests (parks, campgrounds, scenic lookouts and picnic sites)
Displays national, state and local parks, forests, and wilderness areas
External memory storage yes (32 GB max microSD™ card) yes (32 GB max microSD™ card)
Waypoints/favorites/locations 4000 5000
Tracks 200 200
Track log 10000 points, 200 saved tracks 10000 points, 200 saved tracks
Routes 200, 250 points per route; 50 points auto routing 200, 250 points per route; 50 points auto routing

Sensors

GPS
GLONASS
Barometric altimeter
Compass Yes (tilt-compensated 3-axis) Yes (tilt-compensated 3-axis)
GPS compass (while moving)

Daily Smart Features

VIRB® Remote
Pairs with Garmin Connect™ Mobile
Smart notifications on handheld

Outdoor Recreation

Point-to-point navigation
Compatible with BaseCamp™
Area calculation
Hunt/fish calendar
Sun and moon information
Geocaching-friendly Yes (Paperless)
Custom maps compatible yes (500 custom map tiles) yes (500 custom map tiles)
Picture viewer
Camera

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

Connections

Wireless connectivity

yes (BLUETOOTH®, ANT+®)