| Model | Picture Click for larger view | List Price | Unit Dimensions | Display Dimensions | Weight | Battery ______ Battery Life |
| Forerunner® 101 |  | $114.27 USD | 3.26" x 1.71" x 0.91" (8.28 x 4.35 x 2.3 cm) | 1.44" x 0.92" (3.65 x 2.34 cm) | 2.6 oz (74 g) | 2 AAA batteries (not included) __________ 14 - 15 hr, typical |
| Forerunner® 201 |  | $149.99 USD | 3.26" x 1.71" x 0.7" (8.28 x 4.35 x 1.8 cm) | 1.44" x 0.92" (3.65 x 2.34 cm) | 2.75 oz (78 g) | rechargeable lithium-ion __________ 15 hours, typical |
| Forerunner® 205 |  | $199.99 USD | 2.1" x 2.7" x 0.7" (5.33 x 6.86 x 1.78 cm) | 1.3" x 0.8" (3.3 x 2.0 cm) | 2.72 oz (77 g) | rechargeable lithium-ion __________ 10 hours, typical |
| Forerunner® 301 |  | $199.99 USD | 3.26" x 1.71" x 0.7" (8.28 x 4.35 x 1.8 cm) | 3.26" x 1.71" x 0.7" (8.28 x 4.35 x 1.8 cm) | 2.75 oz (78 g) | rechargeable lithium-ion __________ 15 hours, typical |
| Forerunner® 305 |  | $ 299.99 USD | 2.1" x 2.7" x 0.7" (5.33 x 6.86 x 1.78 cm) | 1.3" x 0.8" (3.3 x 2.0 cm) | 2.72 oz (77 g) | rechargeable lithium-ion __________ 10 hours, typical |
| Forerunner® 310XT |  | $349.99 | 2.1" x 2.2" x 0.8" (5.4 x 5.6 x 1.9 cm) | 1.3" x 0.8" (3.3 x 2.0 cm) | 2.5 oz (72 g) | rechargeable lithium-ion __________ 20 hours, typical |
| Forerunner® 405 |  | $299.99 | 1.88" x 2.78" x 0.646" (4.8 x 7.1 x 1.6 cm) | 1.06" (2.7 cm) diameter | 2.11 oz (60 g) | 2 weeks in power save mode; 8 hours in training mode |
| Forerunner® 405CX |  | $369.99 | 1.88" x 2.78" x 0.646" (4.8 x 7.1 x 1.6 cm) | 1.06" (2.7 cm) diameter | 2.11 oz (60 g) | 2 weeks in power save mode; 8 hours in training mode |