Garmin 010-02088-01, GPSMAP 66i Handheld GPS Unit

Lens Material- chemically strengthened glass
Dimension- 2.5” x 6.4” x 1.4” (6.2 x 16.3 x 3.5 cm)
Weight- 8.1 oz (230 g) with batteries
Water rating- IPX7
MIL-STD-810- yes (thermal, shock, water)
Display Type- transflective color TFT
Display Size- 1.5"W x 2.5"H (3.8 x 6.3 cm); 3" diag (7.6 cm)
Display resolution- 240 x 400 pixels
Battery Type- rechargeable, internal lithium-ion
Battery life- up to 35 hours at 10-minute tracking, Up to 200 hours at 30-minute tracking (power save mode)
Memory/History- 16 GB (user space varies based on included mapping)
Interface- high speed micro USB and NMEA 0183 compatible

Maps & Memory
Preloaded maps- yes (TopoActive, routable)
Map segments- 15,000
Satellite Imagery- yes (direct to device)
External memory storage- yes (32 GB max microSD™ card)
Waypoints/favorites/locations- 10,000
Courses- 250, 200 course points per course
Tracks- 250
Navigation Track Log- 20,000 points, 250 saved gpx tracks, 300 saved fit activities
Navigation Routes- 250, 250 points per route; 50 points auto routing