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Garmin fēnix 5S vs Garmin fēnix 6

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

Better figure, where one is clearly better

Garminfēnix 5SGarminfēnix 6
Overview
ReleasedMarch 2017August 2019
Display
Case sizes42 mm47 mm
Panel–Memory-in-pixel
Always-on displayYesYes
Display detailAlways-on transflective colour Garmin Chroma display, 1.1 inches (27.94 mm), 218 × 218 pixels, with LED backlight and button controls.1.3-inch (33.02 mm) always-on transflective colour memory-in-pixel display, 260 x 260 pixels, with five buttons.
Screen protection–Corning Gorilla Glass 3.
Health and fitness
ECGNoNo
Blood oxygenNoYes
Skin temperatureNoNo
Sleep apnoea alertsNoNo
High blood pressure alertsNoNo
Body compositionNoNo
Fall detectionNoNo
Crash detectionNoNo
GPSSingle-bandSingle-band
Water resistance100 m100 m
SensorsGPS, GLONASS, Garmin Elevate optical wrist heart rate, barometric altimeter, three-axis compass, gyroscope, accelerometer and thermometer.GPS, GLONASS, Galileo, Garmin Elevate wrist heart rate, Pulse Ox, barometric altimeter, compass, gyroscope, accelerometer and thermometer.
Health features–Pulse Ox for sleep or altitude acclimation, sleep, stress and Body Battery energy monitoring.
Fitness featuresRunning, cycling, pool and open-water swimming, skiing, golf and paddle-sport profiles; training status, aerobic and anaerobic training effect, VO2 max estimates, recovery advice and race prediction. Additional running dynamics require a compatible chest strap.Running and cycling metrics, multisport profiles, ClimbPro, PacePro, power manager, expedition GPS mode and course navigation.
Safety featuresCourse navigation, breadcrumb trails, TracBack and waypoint guidance; no preloaded detailed maps. Connected LiveTrack and GroupTrack require a paired phone.Incident detection and assistance require a paired smartphone.
Battery and connections
Battery life (maker's claim)Up to 9 daysUp to 14 days
Mobile data optionNoNo
Works withiPhone and AndroidiPhone and Android
Battery life detailUp to nine days in smartwatch mode, twelve hours in GPS mode or twenty-eight hours in UltraTrac with wrist heart rate on, according to the Singapore specification; the European launch release quotes fourteen hours GPS and thirty-five hours UltraTrac.Up to 14 days in smartwatch mode, 36 hours in GPS mode or 48 days in battery saver watch mode.
ChargingRechargeable lithium-ion battery with USB charging/data cable.Internal rechargeable lithium battery.
ConnectivityBluetooth and ANT+, smartphone notifications, Garmin Connect uploads, Connect IQ apps and phone music controls. Wi-Fi is included in Sapphire editions.Bluetooth Smart and ANT+; smart notifications, Connect IQ, Garmin Pay and phone music controls. The standard model does not store music.
Storage64 MB total, with 37 MB available; up to 1,000 waypoints, thirty routes and 200 hours of activity data.–
Design
Weight (lightest version)67 g80 g
SoftwareGarminGarmin
Case materialsStainless-steel bezel, buttons and rear case; 10 ATM water rating. Sapphire-glass editions available.Stainless steel bezel, fibre-reinforced polymer case with metal rear cover and silicone band; 10 ATM water rating.
Size42 × 42 × 14.5 mm; 67 g with silicone band.47 x 47 x 14.7 mm; 80 g with silicone band, 57 g case only.
BandsQuickFit interchangeable bands.QuickFit 22 mm band; silicone band fits wrists 125–208 mm.
ColoursWhite model pictured; other case and band colours and Sapphire editions available.Silver bezel with black case and band.

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