2.4 in 6.3 in  | 2.44 in 1.38 in  | |
| Available colors | ||
| Editiorial reviews | ||
| User rating |
 Garmin GPSMAP 64s |  Garmin GPSMAP 66s | |
|---|---|---|
| Form factor | Handheld | Handheld |
| Built-in camera | no | no |
| International Protection (IP) code | IPX7 | IPX7 |
| Garmin GPSMAP 64s | Garmin GPSMAP 66s | |
|---|---|---|
| Display type | TFT | TFT |
| Screen size | 2.6 in | 3.0 in |
| Screen resolution | 160 x 240 px | 240 x 400 px |
| Interface type | Thumb stick | Thumb stick |
| Widescreen | no | no |
| Garmin GPSMAP 64s | Garmin GPSMAP 66s | |
|---|---|---|
| Colour of product | Black,Red | Black |
| Width | 2.4 in | 2.44 in |
| Height | 6.3 in | 1.38 in |
| Depth | 1.42 in | 6.42 in |
| Weight | 9.17 oz | 8.11 oz |
| Garmin GPSMAP 64s | Garmin GPSMAP 66s | |
|---|---|---|
| Map included | yes | no |
| Map coverage | World | World |
| TMC support | no | no |
| Points of interest | yes | yes |
| Lane guidance | yes | no |
| Live service | yes | yes |
| Waypoints | yes | yes |
| Number of waypoints | 5000 | 20000 |
| Routes quantity | 200 | 250 |
| Garmin GPSMAP 64s | Garmin GPSMAP 66s | |
|---|---|---|
| Bluetooth | no | yes |
| Garmin GPSMAP 64s | Garmin GPSMAP 66s | |
|---|---|---|
| USB | yes | yes |
| Supported radio bands | Not supported | Not supported |
| Image viewer | yes | yes |
| Garmin GPSMAP 64s | Garmin GPSMAP 66s | |
|---|---|---|
| Altimeter | yes | yes |
| Compass | no | yes |
| Garmin GPSMAP 64s | Garmin GPSMAP 66s | |
|---|---|---|
| Storage media type | Flash | Flash |
| Compatible memory cards | microSD | microSD |
| Internal storage capacity | 4.0 GB | 16.0 GB |
| Garmin GPSMAP 64s | Garmin GPSMAP 66s | |
|---|---|---|
| External power connection | AC | Battery |
| Battery type | Lithium | NiMH |
| Battery life (max) | 16.0 h | 16.0 h |
| Number of batteries required | 2 | 2 |
| Pros | ||
|---|---|---|
| Cons |
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