Garmin Forerunner 101 vs Garmin Forerunner 301

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Forerunner 101 compared with Forerunner 301

	GarminForerunner 101	GarminForerunner 301
Overview
Released
Released	2004	2005
Display
Case sizes
Case sizes	83 mm	82.8 mm
Always-on display
Always-on display	Yes	Yes
Display detail
Display detail	Backlit 36.49 × 23.35 mm monochrome display, 100 × 64 pixels, operated with physical buttons. Garmin does not identify the panel technology.	Backlit monochrome screen, 36.49 × 23.35 mm and 100 × 64 pixels; physical button controls. Panel technology is not specified in Garmin's manual.
Health and fitness
ECG
ECG	No	No
Blood oxygen
Blood oxygen	No	No
Skin temperature
Skin temperature	No	No
Sleep apnoea alerts
Sleep apnoea alerts	No	No
High blood pressure alerts
High blood pressure alerts	No	No
Body composition
Body composition	No	No
Fall detection
Fall detection	No	No
Crash detection
Crash detection	No	No
GPS
GPS	Single-band	Single-band
Sensors
Sensors	Twelve-channel GPS receiver with built-in patch antenna; no heart-rate or cadence sensor support.	Twelve-channel GPS receiver and included digitally coded heart-rate chest strap; no optical wrist sensor.
Fitness features
Fitness features	Time, distance, pace and calorie tracking; Virtual Partner, interval training, Auto Pause, Auto Lap and pace, time and distance alerts.	Running, biking and other-sport profiles; advanced and interval workouts, Virtual Partner, Auto Pause, Auto Lap, Auto Scroll and heart-rate, pace, time and distance alerts. AutoLearn adjusts heart-rate zones as fitness changes.
Safety features
Safety features	Stores 100 locations and offers basic route display and navigation back to the start; no detailed base maps.	Basic map display, up to 100 stored locations and navigation back to the start or a saved location; no base maps.
Battery and connections
Battery life (maker's claim)
Battery life (maker's claim)	Up to 15 hours	Up to 14 hours
Mobile data option
Mobile data option	No	No
Works with
Works with	No phone pairing	No phone pairing
Battery life detail
Battery life detail	Two replaceable 1.5 V AAA batteries; fourteen to fifteen hours of typical use according to the owner's manual.	Built-in rechargeable lithium-ion battery; fourteen hours of typical use.
Charging
Charging	–	AC charger and USB connection.
Connectivity
Connectivity	No computer interface or direct phone pairing; history is viewed on the watch.	USB computer interface; supplied Garmin Training Center software for analysing activities and creating workouts. No direct phone pairing.
Storage
Storage	Up to 5,000 laps and approximately two years of training history.	Up to 5,000 laps, with approximately two years of training history according to Garmin's series datasheet.
Design
Weight (lightest version)
Weight (lightest version)	74 g (better)	78 g
Software
Software	Garmin	Garmin
Case materials
Case materials	High-impact plastic alloy housing; IPX7 immersion protection, one metre for thirty minutes. This is not a swimming watch.	Sealed high-impact plastic-alloy housing; IPX7 immersion protection, one metre for thirty minutes.
Size
Size	83 × 43.5 × 23 mm; 74 g including batteries, according to Garmin's series datasheet. Width is used as the case size.	82.8 × 43.4 × 17.5 mm; approximately 78 g. Width is used as the case size.
In the box
In the box	–	Watch, wrist strap, expander strap, AC charger, USB cable, digitally coded heart-rate monitor, Training Center software and documentation.
Bands
Bands	Adjustable wrist strap.	–