The Differences
| 1. Unit dimensions, WxHxD: 4.8″W x 2.9″H x .6″D (12.1 x 7.6 x 1.5 cm)
2. Display size: 3.81″W x 2.25″H (9.7 x 5.7 cm); 4.3″ diag (10.9 cm)
3. Weight: 5.7 ounces (161.6 g)
4. Battery life: up to 4 hours
5. Traffic compatible (routes around traffic with a receiver and subscription) – yes
6. ecoRoute™ (calculates a more fuel-efficient route)
7. Enhanced pedestrian navigation (guides you as you walk around town)
8. World travel clock, currency & unit converter, calculator
9. Garmin Lock™ (anti-theft feature)
10. Picture viewer
| 1. Unit dimensions, WxHxD: 5.5″W x 3.4″H x .7″D (14.0 x 8.6 x 1.8 cm)
2. Display size: 4.4″W x 2.5″H (11.1 x 6.3 cm); 5.0″ diag (12.7 cm)
3. Weight: 6.3 ounces (177.2 g)
4. Battery life: up to 2 hours
5. Lane assist (guides to proper lane for navigation)
6. Junction view (displays junction signs)
7. Speed limit indicator (displays speed limit for most major roads in the U.S. and Europe)
Note: nuvi 50LM is a model under new 2012 series by Garmin (This series was announced by Garmin on August 24th 2011)
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