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Garmin fēnix 8 AMOLED (47 mm, Sapphire) vs Garmin Forerunner 965

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

Garminfēnix 8 AMOLED (47 mm, Sapphire)GarminForerunner 965
Overview
ReleasedAugust 2024March 2023
Display
Case sizes47 mm47 mm
PanelOLEDOLED
Always-on displayYesYes
Display detail1.4-inch (35.56 mm) AMOLED touchscreen, 454 x 454 pixels, with optional always-on mode and leakproof inductive buttons.1.4-inch (35.4 mm) AMOLED touchscreen, 454 x 454 pixels, with optional always-on mode and five buttons.
Screen protectionSapphire crystal lens on this titanium edition.Corning Gorilla Glass 3 DX.
Health and fitness
ECGYesNo
Blood oxygenYesYes
Skin temperatureYesNo
Sleep apnoea alertsNoNo
High blood pressure alertsNoNo
Body compositionNoNo
Fall detectionNoNo
Crash detectionNoNo
GPSDual-band (L1 and L5)Dual-band (L1 and L5)
Water resistance100 m50 m
SensorsGPS, 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.GPS, GLONASS, Galileo, QZSS and BeiDou with multi-band positioning and SatIQ; Garmin Elevate wrist heart rate, Pulse Ox, barometric altimeter, compass, gyroscope, accelerometer, thermometer and ambient light sensor.
Health featuresPulse Ox, skin temperature, sleep and HRV tracking; ECG app where regionally available, subject to compatible phone app and watch software.Pulse Ox, HRV status, sleep score, all-day stress and Body Battery energy monitoring.
Fitness featuresSport-specific strength workouts, training readiness, endurance and hill scores, PacePro, ClimbPro, TopoActive maps, scuba and apnea dive activities; built-in LED flashlight.Training readiness and load ratio, endurance score, morning report, race widget, wrist-based running dynamics and power, triathlon profiles, PacePro, ClimbPro and full-colour maps.
Safety featuresIncident detection and assistance require a paired smartphone.Incident detection and assistance require a paired smartphone; LiveTrack.
Battery and connections
Battery life (maker's claim)Up to 16 daysUp to 23 days
In low-power modeUp to 23 days–
Mobile data optionNoNo
Works withiPhone and AndroidiPhone and Android
Storage32 GB32 GB
Battery life detailUp 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.Up to 23 days in smartwatch mode, 31 hours in GPS-only mode without music or 19 hours with all-systems multi-band GNSS without music.
ChargingRechargeable lithium-ion battery with Garmin proprietary plug charger.Rechargeable lithium-ion battery with Garmin proprietary plug charger.
ConnectivityBluetooth, 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; Garmin Pay, Connect IQ, notifications and on-watch music storage.
Design
Weight (lightest version)73 g53 g
SoftwareGarminGarmin
Case materialsTitanium bezel, fibre-reinforced polymer case with metal rear cover, sapphire crystal and silicone band; 10 ATM water rating and 40 m dive-rated case.Titanium bezel, silicone band and 5 ATM water rating.
Size47 x 47 x 13.8 mm; 73 g with silicone band, 52 g case only.47.2 x 47.2 x 13.2 mm; 53 g.
BandsQuickFit 22 mm band; silicone band fits wrists 125–208 mm.QuickFit-compatible 22 mm band; fits wrists 135–205 mm.
ColoursTitanium with spark orange and graphite silicone band.Black case and black/grey band.

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