MODEL

GPS 152

GPSMAP 172C

GPSMAP 276C

GPSMAP 292

GPSMAP 376C

GPSMAP 378

GPSMAP 392

GPSMAP 492

GPSMAP 478

Receiver

12 channel

12 channel

12 channel

12 channel

12 channel

12 channel

12 channel

12 channel

12 channel

NO. of Waypoints

500

3000

3,000

3000

3,000

3,000

3000

3000

3,000

Built in
Memory

1 MB

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

# of Routes / # of waypoints per route

20/30

50/50

50/300

50/300

50/300

50/300

50/300

50/300

50/300

Additional
map options

MapSource Points of Interest CD

BlueChart data cards or MapSource CD ROM uploadable information

BlueChart data cards or MapSource CD ROM uploadable information

BlueChart data cards or MapSource CD ROM uploadable information

BlueChart data cards or MapSource CD ROM uploadable information

BlueChart data cards or MapSource CD ROM uploadable information

BlueChart data cards or MapSource CD ROM uploadable information

BlueChart data cards or MapSource CD ROM uploadable information

BlueChart data cards or MapSource CD ROM uploadable information

Worldwide - Bluechart Data Cards or MapSource CD Rom

Worldwide - Bluechart Data Cards or MapSource CD Rom

Worldwide - Bluechart Data Cards or MapSource CD Rom

Battery Life

N/A

N/A

Up to 15 HR (1 Recharge-able lithium-ion / Included)

N/A

5-15 HR Depending on XM usage (1 Recharge-able lithium-ion / Included)

5-15 HR Depending on XM usage (1 Recharge-able lithium-ion / Included)

N/A

N/A

5-15 HR Depending on XM usage (1 Recharge-able lithium-ion / Included)

Display Size

2.3 x 3.5

3.2 x 3.2

2.2 x 3

4.0 x 3.0

2.2 x 3

2.2 x 3

4.0 x 3.0

4.0 x 3.0

2.2 x 3

(5.0 diagonal)

(5.0 diagonal)

(5.0 diagonal)

Display Type

4 level Gray LCD

256 Color CSTN

256 level Color TFT

256 Color TFT

256 level Color TFT

256 level Color TFT

256 Color TFT

256 Color TFT

256 level Color TFT

Area Calculation

N/A

N/A

Yes

N/A

Yes

Yes

N/A

N/A

Yes

Display Resolution

100 x 160

320 x 320

320 x 480

320 x 234

320 x 480

320 x 480

320 x 234

320 x 234

320 x 480

Standard GPS Antenna

Built in OR Remote

Ext(GA-29 remote marine mount ant. with 30' cable.)

Detachable

Internal or Remote

Detachable

Detachable

Internal

Internal or Remote

Detachable

TracBack
Mode

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

# of Tracklog Points

2048

10,000

10,000

10,000

10,000

10,000

10,000

10,000

10,000

Unit Weight

1 lb.

15.6 oz.

13.6 oz.

1.7 lbs.

13.6 oz.

13.6 oz.

1.7 lbs.

1.7 lbs.

13.6 oz.

Audible
Alarms

Anchor: Yes

Anchor: Yes

Anchor: Yes

Anchor: Yes

Anchor: Yes

Anchor: Yes

Anchor: Yes

Anchor: Yes

Anchor: Yes

Arrival: Yes

Arrival: Yes

Arrival: Yes

Arrival: Yes

Arrival: Yes

Arrival: Yes

Arrival: Yes

Arrival: Yes

Arrival: Yes

Clock: Yes

Clock: Yes

Clock: Yes

Clock: Yes

Clock: Yes

Clock: Yes

Clock: Yes

Clock: Yes

Clock: Yes

Off Course: Yes

Off Course: Yes

Off Course: Yes

Off Course: Yes

Off Course: Yes

Off Course: Yes

Off Course: Yes

Off Course: Yes

Off Course: Yes

DGPS: Yes

DGPS: Yes

DGPS: Yes

DGPS: Yes

Accuracy: Yes

Accuracy: Yes

Accuracy: Yes

Accuracy: Yes

Waterproof Standard

IPX7

IPX7

IPX7

IPX7

IPX7

IPX7

IPX7

IPX7

IPX7

Unit Dimensions

4.9 x 5.0 x 2.5

4.9 x 6.3 x 2.8

3.2 x 5.7 x 1.9

6.3"W x 6.3"H x 3.3"D (Internal Antenna)

3.2 x 5.7 x 1.9

3.2 x 5.7 x 1.9

6.3"W x 6.3"H x 3.3"D

6.3"W x 6.3"H x 3.3"D (Internal Antenna)

3.2 x 5.7 x 1.9

6.3"W x 7.1"H x 3.1"D (External Antenna)

6.3"W x 7.1"H x 3.1"D (External Antenna)

Screen Orientation

N/A

N/A

Horizontal

N/A

Horizontal

Horizontal

N/A

N/A

Horizontal

Separate
Serial & USB interfaces

N/A

N/A

Yes

N/A

Yes

Yes

N/A

N/A

Yes

Map Storage

N/A

Garmin Data Cards / Pre-Program-med Cards

Garmin Data Cards / Pre-Program-med Cards

Garmin Data Cards / Pre-Program-med Cards

Garmin Data Cards / Pre-Program-med Cards

Garmin Data Cards / Pre-Program-med Cards

Built-in Inland maps/ Garmin Data Cards / Pre-Program-med Cards

Built-in BlueChart g2 marine cartography/ Garmin Data Cards / Pre-Program-med Cards

Garmin Data Cards / Pre-Program-med Cards

Backlit Display

Multi-level adjustable

Multi-level adjustable

Multi-level adjustable

Multi-level adjustable

Multi-level adjustable

Multi-level adjustable

Multi-level adjustable

Multi-level adjustable

Multi-level adjustable

CANet? Compatible

N/A

N/A

N/A

Yes

N/A

N/A

Yes

Yes

N/A

Ext. Ant. Hookup

N/A

N/A

Yes (BNC)

N/A

Yes (BNC)

Yes (BNC)

N/A

N/A

Yes (BNC)

Internal Differential

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

WAAS/
EGNOS capability

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Loran TD position format

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

MGRS position format

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Voice Commands

N/A

N/A

Yes

N/A

Yes

Yes

N/A

N/A

Yes

Turn by turn routing

N/A

N/A

Yes

N/A

Yes

Yes

N/A

N/A

Yes

XM WX Satellite Weather Compatibility

N/A

N/A

N/A

N/A

Yes

Yes

N/A

N/A

Yes

XM Satellite Radio Capability

N/A

N/A

N/A

N/A

Yes

Yes

N/A

N/A

Yes

3D Perspective Map View

N/A

N/A

N/A

Yes, with optional Bluechart g2 mapping.

N/A

N/A

Yes, with optional Bluechart g2 mapping.

Yes, with Bluechart g2 mapping.

N/A

Audible Weather Alarm

N/A

N/A

N/A

N/A

Yes

Yes

N/A

N/A

Yes

Hunting/
Fishing calculator

N/A

N/A

Yes

N/A

Yes

Yes

N/A

N/A

Yes

Celestial Information Page

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Proximity Waypoints

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Tide Prediction

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

BlueChart Night Mode

N/A

N/A

Yes

N/A

Yes

Yes

N/A

N/A

Yes

Voltage Range

Oct-40

Oct-35

Nov-35

Oct-35

Nov-35

Nov-35

Oct-35

Oct-35

Nov-35

Waypoint Icons

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes