Garmin · 2013
Forerunner 620 Size, Dimensions & Wrist Fit
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Does the Forerunner 620 fit your wrist?
The Forerunner 620 in short
- Between 10 hours and 6 weeks per charge depending on the power mode — watch mode at best, training at worst.
- Water rated to 5 ATM.
- 43.6g on the wrist.
- 1.0" (25.4 mm) diameter display.
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Size, fit and battery side by side, against any smartwatch we list.
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Forerunner 620 battery life
Runtime by power mode
- Watch mode6 weeks
- Training10 hours
Rechargeable lithium-ion
Where it ranks among Garmin watches
- Everyday use42 days#11 of 281
- GPS tracking10 hours#248 of 267
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Forerunner 620 specifications
- Battery life
- Up to 6 weeks in watch mode; up to 10 hours in training mode
- Display
- 1.0" (25.4 mm) diameter
- Resolution
- 180 x 180 pixels
- Water rating
- 5 ATM
Show all specificationsGarmin's published specification, for reference · checked September 2026
Overview
- Family
- Garmin
General
- Dimension
- 1.8" x 1.8" x 0.5" (45 x 45 x 12.5 mm)
- Touchscreen
- Yes
- Battery Type
- Rechargeable lithium-ion
- Battery life
- Up to 6 weeks in watch mode; up to 10 hours in training mode
- Display Size
- 1.0" (25.4 mm) diameter
- Water rating
- 5 ATM
- Color display
- Yes
- Display resolution
- 180 x 180 pixels
Sensors
- GPS
- Yes
- Accelerometer
- Yes
Product Info
- Main SKU
- 010-01128-00
- Product ID
- 122785
- Product Name
- Forerunner® 620
- Release Date
- 9/16/2013
- Product Variation
- Blue/Black Watch Only
Maps & Memory
- History
- 200 hours of activity data
Cycling Features
- Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories)
- Yes
Activity Tracking Features
- Calories burned
- Yes
Training, Planning and Analysis Features
- Auto scroll
- Yes
- Training effect
- Yes
- Virtual Partner
- Yes
- Recovery advisor
- Yes
- Advanced workouts
- Yes
- Interval training
- Yes
- Customizable data pages
- Yes
- Auto Pause® automatic timer halt
- Yes
- Auto Lap® interval tracking feature
- Yes
