Garmin Nuvi 3790T Review: The Next Generation

Physical
Unit dimensions, WxHxD: 4.8"W x 2.9"H x .35"D (12.2 x 7.5 x .89 cm)
Display size, WxH 3.7"W x 2.2"H (9.4 x 5.6 cm); 4.3" diag (10.9 cm)
Display resolution, WxH: 800 x 480 pixels
Display type: glass, dual-orietation, WVGA color TFT with white backlight
Weight: 4 ounces (113.4 g)
Battery: rechargeable lithium-ion
Battery life: up to 4 hours

Maps & Memory
Basemap
Preloaded street maps
Includes lifetime map updates: no
Ability to add maps: yes
Built-in memory: internal solid state
Accepts data cards: microSD™ card (not included)
Waypoints/favorites/locations: 1,000
Routes: 100

Features
Voice prompts (e.g. "Turn right in 500 ft."): (internal and mount speaker)
Speaks street names (e.g. "Turn right ON ELM STREET in 500 ft.")
Voice-activated navigation (operate device with spoken commands)
Lane assist (guides you to the proper lane for navigation)
trafficTrends™ (calculates routes based on predicted traffic flow)
myTrends™ (predicts routes based on user's navigation behavior)
3-D building view (displays buildings in 3-D)
Auto sort multiple destinations (provides most direct route)
Auto re-route (fast off-route and detour recalculation)
Choice of route setup (faster time, shorter distance, off road)
Route avoidance (avoid highways, tolls etc.)
Bluetooth® wireless technology
FM traffic compatible(receiver and lifetime traffic included)
Speed limit indicator (displays speed limit for most major roads in the U.S. and Europe)
Where Am I? (find closest hospitals, police & gas stations, nearest address & intersection)
Garmin Locate™ (marks position when removed from windshield mount)
ecoRoute™ (calculates a more fuel-efficient route)
Qwerty or ABC keyboard (choose keyboard layout)
Custom POIs (ability to add additional points of interest)
Garmin Garage™ vehicles compatible (download car-shaped icons to your device)
Garmin Garage™ voices compatible (download custom voices to your device)
Photo navigation (navigate to geotagged photos)
World travel clock, currency & unit converter, calculator
Picture viewer
Garmin Lock™ (anti-theft feature)
Touchscreen: (multi-touch)