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Garmin fēnix 5X vs Garmin Forerunner 935

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

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Garminfēnix 5XGarminForerunner 935
Overview
ReleasedMarch 2017March 2017
Display
Case sizes51 mm47 mm
Panel–Memory-in-pixel
Always-on displayYesYes
Display detailAlways-on transflective colour Garmin Chroma display, 1.2 inches (30.5 mm), 240 × 240 pixels, with LED backlight and physical buttons.1.2-inch (30.4 mm) sunlight-readable transflective colour MIP display, 240 x 240 pixels, with button controls.
Screen protection–Glass lens.
Health and fitness
ECGNoNo
Blood oxygenNoNo
Skin temperatureNoNo
Sleep apnoea alertsNoNo
High blood pressure alertsNoNo
Body compositionNoNo
Fall detectionNoNo
Crash detectionNoNo
GPSSingle-bandSingle-band
Water resistance100 m50 m
SensorsGPS, GLONASS, Garmin Elevate optical wrist heart rate, barometric altimeter, three-axis compass, gyroscope, accelerometer and thermometer.GPS, GLONASS, Garmin Elevate wrist heart rate, barometric altimeter, compass, gyroscope and accelerometer.
Health features–All-day heart rate, steps, sleep and intensity minutes.
Fitness featuresRunning, cycling, pool and open-water swimming, skiing, golf and paddle-sport profiles; training status, aerobic and anaerobic training effect, VO2 max estimates and recovery advice. Additional running dynamics require a compatible chest strap.Running, cycling, pool and open-water swimming, triathlon, skiing, hiking and golf profiles; auto multisport switching, training status and load, aerobic and anaerobic training effect, VO2 max, recovery time and course guidance. Running dynamics require a compatible strap or Running Dynamics Pod.
Safety featuresPreloaded colour topographic and cycling maps, golf courses, round-trip route generation, turn-by-turn guidance and nearby points of interest. European editions have preloaded European topographic maps; map regions vary by market. TracBack and connected LiveTrack/GroupTrack also supported.–
Battery and connections
Battery life (maker's claim)Up to 12 daysUp to 14 days
Mobile data optionNoNo
Works withiPhone and AndroidiPhone and Android
Battery life detailUp to twelve days in smartwatch mode, twenty hours in GPS mode or thirty hours in UltraTrac with wrist heart rate on, according to the Singapore specification; the European launch release quotes thirty-five hours UltraTrac.Up to two weeks in smartwatch mode, 21 hours in GPS/heart-rate mode or 44 hours in UltraTrac without wrist heart rate per Garmin Singapore's exact specification table. Garmin's US launch release instead stated 24 GPS hours and 50 UltraTrac hours without matching those conditions.
ChargingRechargeable lithium-ion battery with USB charging/data cable.Rechargeable lithium-ion battery with Garmin charging cable.
ConnectivityWi-Fi, Bluetooth and ANT+; smartphone notifications, Garmin Connect uploads, Connect IQ apps and phone music controls.Bluetooth Smart, ANT+ and Wi-Fi; smart notifications, Connect IQ, Garmin Connect, LiveTrack and phone music controls.
StorageSingapore specification lists 12 GB total and 8 GB available; 1,000 waypoints, fifty routes, 10,000 track points and 100 saved tracks.64 MB memory/history.
Design
Weight (lightest version)98 g49 g
SoftwareGarminGarmin
Case materialsSapphire-glass lens, stainless-steel bezel, buttons and rear case; 10 ATM water rating.Fibre-reinforced polymer case and bezel with silicone band; 5 ATM water rating.
Size51 × 51 × 17.5 mm; 98 g with silicone band.47 x 47 x 13.9 mm; 49 g.
BandsQuickFit interchangeable bands.QuickFit 22 mm interchangeable band.
ColoursSlate-grey model with black silicone band pictured.Black case with force yellow band.

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