Garmin fēnix 8 AMOLED (47 mm, Sapphire) vs Garmin fēnix 9

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fēnix 8 AMOLED (47 mm, Sapphire) compared with fēnix 9

	Garminfēnix 8 AMOLED (47 mm, Sapphire)	Garminfēnix 9
Overview
Released
Released	August 2024	August 2026
Display
Case sizes
Case sizes	47 mm	43 mm, 47 mm or 51 mm
Panel
Panel	OLED	OLED
Always-on display
Always-on display	Yes	Yes
Display detail
Display detail	1.4-inch (35.56 mm) AMOLED touchscreen, 454 x 454 pixels, with optional always-on mode and leakproof inductive buttons.	AMOLED colour touchscreen; 43 mm is 1.3″ (33 mm) at 416 x 416 pixels; 47 mm and 51 mm are 1.4″ (35.6 mm) at 454 x 454 pixels; Garmin says it's more than twice as bright as the fēnix 8's
Screen protection
Screen protection	Sapphire crystal lens on this titanium edition.	Sapphire crystal lens
Health and fitness
ECG
ECG	Yes	Yes
Blood oxygen
Blood oxygen	Yes	Yes
Skin temperature
Skin temperature	Yes	Yes
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	Dual-band (L1 and L5)	Dual-band (L1 and L5)
Water resistance
Water resistance	100 m	100 m
Sensors
Sensors	GPS, GLONASS, Galileo, QZSS and BeiDou with SatIQ multi-band positioning; Garmin Elevate wrist heart rate, Pulse Ox, barometric altimeter, compass, gyroscope, accelerometer, thermometer, ambient light and depth sensors.	Garmin Elevate wrist heart rate monitor; Pulse Ox blood oxygen monitor; barometric altimeter; compass; gyroscope; accelerometer; thermometer; ambient light sensor; depth sensor to 40 m
Health features
Health features	Pulse Ox, skin temperature, sleep and HRV tracking; ECG app where regionally available, subject to compatible phone app and watch software.	Garmin ECG App (atrial fibrillation); Pulse Ox; skin temperature; high and low heart rate alerts; HRV status; health status; sleep score, sleep coach, sleep alignment and nap detection; breathing variations; Body Battery; all-day stress; Health Snapshot; lifestyle logging; women's health tracking with past ovulation estimates; jet lag adviser
Fitness features
Fitness features	Sport-specific strength workouts, training readiness, endurance and hill scores, PacePro, ClimbPro, TopoActive maps, scuba and apnea dive activities; built-in LED flashlight.	More than 100 activity profiles; stamina zones and stamina curve; Garmin Epic activity stories in Garmin Connect; training readiness and training status; running tolerance; running economy and step speed loss (with HRM 600); VO2 max, endurance score and hill score; PacePro; ClimbPro; Garmin Coach and Garmin Triathlon Coach plans; indoor rowing VO2 max and power curve (with a power-meter rower); rucking with pack weight up to 100 kg; preloaded TopoActive maps with perspective view, dynamic round-trip routing, NextFork and Up Ahead; ski resort and 43,000+ golf course maps; scuba (single gas, air and nitrox to 40% oxygen) and apnoea diving to 40 m
Safety features
Safety features	Incident detection and assistance require a paired smartphone.	Incident detection during select activities; assistance; LiveTrack; live event sharing (Android only); LED flashlight
Battery and connections
Battery life (maker's claim)
Battery life (maker's claim)	Up to 16 days	Up to 29 days
In low-power mode
In low-power mode	Up to 23 days	Up to 42 days
Mobile data option
Mobile data option	No	No
Works with
Works with	iPhone and Android	iPhone and Android
Storage
Storage	32 GB	64 GB (better)
Battery life detail
Battery life detail	Up to 16 days in smartwatch mode, seven days with always-on display, 47 hours in GPS-only mode or 35 hours with all-systems multi-band GNSS.	43, 47 and 51 mm respectively, up to 10, 16 and 29 days in smartwatch mode; 15, 24 and 42 days in low power watch mode; 18, 30 and 54 hours of GPS activity in Normal mode; 15, 25 and 45 hours in Max Accuracy (multi-band); 49, 81 and 145 hours in Max Battery; 7, 12 and 21 hours with music; 10, 18 and 31 days in Expedition mode
Charging
Charging	Rechargeable lithium-ion battery with Garmin proprietary plug charger.	Garmin charging/data cable with proprietary plug
Connectivity
Connectivity	Bluetooth, ANT+ and Wi-Fi; Garmin Pay, Connect IQ and on-watch music. Speaker and microphone support calls and voice messaging through a paired phone; some offline voice commands work without one.	Bluetooth, ANT+ and Wi-Fi; multi-band GPS with GPS, GLONASS, Galileo, QZSS and BeiDou and SatIQ; Garmin Pay; speaker and microphone for calls and the phone's voice assistant with a paired phone; voice commands
Storage
Storage	–	Up to 7,000 songs; twice the map storage and 50% more RAM than the fēnix 8
Design
Weight (lightest version)
Weight (lightest version)	73 g	44 g (better)
Software
Software	Garmin	Garmin
Case materials
Case materials	Titanium bezel, fibre-reinforced polymer case with metal rear cover, sapphire crystal and silicone band; 10 ATM water rating and 40 m dive-rated case.	Fibre-reinforced polymer case with titanium rear cover; titanium bezel; leakproof inductive buttons; 10 ATM water rating; dive rated to 40 m (EN 13319); tested to US military standards for thermal, shock and water resistance; operating temperature –20 °C to 45 °C
Size
Size	47 x 47 x 13.8 mm; 73 g with silicone band, 52 g case only.	43 mm is 43 x 43 x 13.8 mm and 44 g case only (61 g with band); 47 mm is 47 x 47 x 13.8 mm and 53 g (75 g); 51 mm is 51 x 51 x 14.7 mm and 65 g (91 g)
Bands
Bands	QuickFit 22 mm band; silicone band fits wrists 125–208 mm.	QuickFit silicone bands, 20 mm (43 mm), 22 mm (47 mm) or 26 mm (51 mm); silicone band fits 108–182 mm, 125–208 mm or 127–210 mm wrists
Colours
Colours	Titanium with spark orange and graphite silicone band.	43 mm in Titanium with Fog Grey or Pebble Grey band; 47 mm and 51 mm in Titanium with Pebble Grey band or Carbon Grey DLC Titanium with Black band
In the box
In the box	–	fēnix 9, charging/data cable, documentation