Garmin Forerunner 235 vs Garmin Forerunner 35

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Forerunner 235 compared with Forerunner 35

	GarminForerunner 235	GarminForerunner 35
Overview
Released
Released	November 2015	2016
Display
Case sizes
Case sizes	45 mm	40.7 mm
Panel
Panel	Memory-in-pixel	Memory-in-pixel
Always-on display
Always-on display	Yes	Yes
Display detail
Display detail	1.23-inch (31.1 mm) sunlight-readable colour display, 215 x 180 pixels, with button controls.	0.93 × 0.93-inch (23.5 × 23.5 mm) monochrome, transflective memory-in-pixel display, 128 × 128 pixels; button controls and a backlight.
Screen protection
Screen protection	–	Chemically strengthened glass.
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
Water resistance
Water resistance	50 m	50 m
Sensors
Sensors	GPS, GLONASS, Garmin Elevate optical wrist heart rate and accelerometer.	Built-in GPS, Garmin Elevate optical heart-rate sensor and accelerometer; supports ANT+ heart-rate and cycling sensors.
Health features
Health features	All-day wrist heart rate, steps, calories and sleep tracking.	Continuous heart rate, steps, calories, distance, sleep and intensity-minute tracking, with inactivity alerts and Move IQ activity recognition.
Fitness features
Fitness features	Running and cycling tracking, VO2 max estimate, race predictor, recovery advisor, indoor distance from the accelerometer and optional foot-pod and cycling speed/cadence sensors.	Outdoor and indoor running, walking, cycling and cardio profiles; virtual pacing, intervals, personal records and vibration alerts. No swim-tracking profile.
Safety features
Safety features	–	LiveTrack shares a run's location when paired with a compatible smartphone.
Battery and connections
Battery life (maker's claim)
Battery life (maker's claim)	Up to 9 days	Up to 9 days
Mobile data option
Mobile data option	No	No
Works with
Works with	iPhone and Android	iPhone and Android
Battery life detail
Battery life detail	Up to nine days as a watch with activity tracking, notifications and heart rate; up to 11 hours in training mode.	Up to nine days with notifications, activity tracking and wrist heart rate, or 13 hours in GPS training mode.
Charging
Charging	Rechargeable lithium-ion battery.	Rechargeable lithium-ion battery with a USB charging clip.
Connectivity
Connectivity	Bluetooth and ANT+; smart notifications, Connect IQ, phone music controls and Garmin Connect Mobile sync. No on-watch music storage.	Bluetooth and ANT+; paired-phone notifications, music controls, automatic Garmin Connect uploads and Find My Phone. No Connect IQ app support or music storage.
Storage
Storage	–	Seven activities of on-watch history.
Design
Weight (lightest version)
Weight (lightest version)	42 g	37.3 g (better)
Software
Software	Garmin	Garmin
Case materials
Case materials	5 ATM water rating.	Silicone strap and 5 ATM water rating.
Size
Size	45 x 45 x 11.7 mm; 42 g.	35.5 × 40.7 × 13.3 mm; 37.3 g. The longest case dimension is used in the size comparison.
Bands
Bands	–	Fits wrists 140–200 mm.
Colours
Colours	Black and red.	Black case and band; Garmin also sold limelight, frost blue and white versions.