- The Forerunner 305 by Garmin features the powerful high-sensitivity SiRFstarIII™ architecture
- Weight: 2.72 oz. (77 grams)
- Display (WxH): 1.3” x 0.8” (33mm x 20.3mm)
- Physical size (WxHxD): 2.1” x .7” x 2.7” (53.3mm x 17.8mm x 68.6mm)
- Lap Memory: 1,000 laps
- Battery: Rechargeable internal lithium ion
- Battery Life: 10 hours (typical use)
- Waterproof: IEC 60529 IPX7 standards (submersible in one meter of water for up to 30 mins.)
- Alerts: Time, distance, pace and heart rate
Heart rate monitor features:
- Physical size (WxHxD): 13.7” x 1.4” x 0.5” (348mm x 35.6mm x 12.7mm)
- Transmission range: approximately 3m (9.8ft)
- Battery: 3 years (1 hour per day)/CR2032 (3 volts)
- Weight: .74 oz (21 grams)
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