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Garmin Forerunner 101 — case dimensions and design

Garmin · 2003

Forerunner 101 Size, Dimensions & Wrist Fit

Case Width

—

Thickness

—

Battery

15 hours

Weight

74g

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Does the Forerunner 101 fit your wrist?

The Forerunner 101 in short

  • Rated for 15 hours of use per charge.
  • 74g on the wrist.
  • 1.44" x 0.92" (3.65 x 2.34 cm) display.

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Forerunner 101 battery life

Published runtime

  • 1415 hours
2 AAA batteries (not included)

Forerunner 101 specifications

Battery life
14-15 hours, typical
Display
1.44" x 0.92" (3.65 x 2.34 cm)
Resolution
100 x 64 pixels
Water rating
IPX7
Show all specificationsGarmin's published specification, for reference · checked September 2026

Overview

Family
Garmin

General

Dimension
3.26" x 1.71" x 0.91" (8.28 x 4.35 x 2.3 cm)
Battery Type
2 AAA batteries (not included)
Battery life
14-15 hours, typical
Display Size
1.44" x 0.92" (3.65 x 2.34 cm)
Water rating
IPX7
Display resolution
100 x 64 pixels

Sensors

GPS
Yes

Product Info

Main SKU
010-00329-05
Product ID
231
Product Name
Forerunner® 101
Release Date
3/2/2003
Product Variation
Forerunner® 101

Maps & Memory

History
5000 laps
Navigation Routes
0
Waypoints/favorites/locations
100

Cycling Features

Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories)
Yes

Training, Planning and Analysis Features

Virtual Partner
Yes
Interval training
Yes
Customizable data pages
Yes
Auto Pause® automatic timer halt
Yes
Auto Lap® interval tracking feature
Yes