Garmin fēnix 5X vs Garmin fēnix E

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fēnix 5X compared with fēnix E

	Garminfēnix 5X	Garminfēnix E
Overview
Released
Released	March 2017	August 2024
Display
Case sizes
Case sizes	51 mm	47 mm
Panel
Panel	–	OLED
Always-on display
Always-on display	Yes	Yes
Display detail
Display detail	Always-on transflective colour Garmin Chroma display, 1.2 inches (30.5 mm), 240 × 240 pixels, with LED backlight and physical buttons.	33 mm (1.3 inch) AMOLED touchscreen, 416 x 416 pixels, five physical buttons; always-on option and red-shift mode.
Screen protection
Screen protection	–	Corning Gorilla Glass; no Sapphire configuration in the exact current range.
Health and fitness
ECG
ECG	No	No
Blood oxygen
Blood oxygen	No	Yes
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	100 m	100 m
Sensors
Sensors	GPS, GLONASS, Garmin Elevate optical wrist heart rate, barometric altimeter, three-axis compass, gyroscope, accelerometer and thermometer.	GPS, GLONASS, Galileo, QZSS and BeiDou; Garmin Elevate wrist heart rate, Pulse Ox, barometric altimeter, compass, gyroscope, accelerometer, thermometer and ambient-light sensor. Single-frequency GNSS, with no multi-band/SatIQ (confirmed by exact Wareable and T3 tests); maker does not number the heart-rate sensor generation in its current table.
Health features
Health features	–	Continuous heart rate and high/low alerts, respiration, Body Battery, stress, advanced sleep tracking/coach/score/alignment, breathing variations, nap detection, HRV status, Health Snapshot/Status, jet lag adviser and lifestyle logging. Current table lists smart wake alarm. Hydration and menstrual-cycle/pregnancy features use Garmin Connect and optional Connect IQ widget. Pulse Ox is not available in every country. No ECG or skin-temperature feature is listed for this exact hardware; the ambient thermometer does not establish skin-temperature tracking.
Fitness features
Fitness features	Running, 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.	Training readiness/status, training load/focus/effect, recovery time, endurance and hill scores, VO2 max, real-time stamina, running tolerance, running dynamics/power, PacePro and ClimbPro. Running economy, step speed loss and some sensor metrics require a compatible accessory. Garmin running, cycling, strength and triathlon coaching, suggested workouts and animated strength/cardio/yoga/Pilates workouts. Triathlon auto transitions, pool/open-water swimming, cycling, climbing, skiing, golf and many other profiles. Download free regional TopoActive maps over Wi-Fi for offline navigation; dynamic round-trip routing, turn-by-turn courses, NextFork, TracBack and back-to-start. Maker table calls road/trail maps “Yes (downloadable)”; do not treat them as preinstalled. Golf courses and ski-resort maps are listed as preloaded; premium map contents require optional Outdoor Maps+ subscription.
Safety features
Safety features	Preloaded 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.	Incident detection during selected activities, assistance, LiveTrack and live event sharing require a compatible paired phone/connectivity. Screen flashlight lights the display; no separate LED torch. Current web safety table marks hands-free voice control, but Garmin’s Japanese launch explicitly excludes fēnix E from speaker/microphone/voice commands; that ambiguous table entry does not establish those hardware features. No dive-rated inductive buttons, depth sensor, LTE or satellite messaging.
Battery and connections
Battery life (maker's claim)
Battery life (maker's claim)	Up to 12 days	Up to 16 days
In low-power mode
In low-power mode	–	Up to 21 days
Mobile data option
Mobile data option	No	No
Works with
Works with	iPhone and Android	iPhone and Android
Storage
Storage	–	16 GB
Battery life detail
Battery life detail	Up 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 16 days smartwatch with gesture wake, or 6 days always-on; battery-saver watch mode 21 days. GPS-only 42 h gesture/30 h always-on; all satellite systems 32/24 h; all satellites plus music 10 h in either mode; maximum-battery GPS 75 h; expedition GPS 14 days. Headline figures use gesture-wake smartwatch and battery saver. Actual life depends on enabled features and connected sensors; no solar charging.
Charging
Charging	Rechargeable lithium-ion battery with USB charging/data cable.	Built-in rechargeable lithium-ion battery. Garmin proprietary charging/data cable to USB-C computer port or AC adaptor rated at least 5 W, per September 2026 owner guide; cable is supplied.
Connectivity
Connectivity	Wi-Fi, Bluetooth and ANT+; smartphone notifications, Garmin Connect uploads, Connect IQ apps and phone music controls.	Bluetooth, ANT+ and Wi-Fi; Garmin Connect for iPhone/Android, Connect IQ apps/watch faces, Garmin Pay with supported banks, downloaded music and supported subscription services. Smart notifications, Garmin Share and Garmin Messenger with paired phone; notification text replies/images are Android-specific. No calls through the watch speaker or offline voice commands.
Storage
Storage	Singapore specification lists 12 GB total and 8 GB available; 1,000 waypoints, fifty routes, 10,000 track points and 100 saved tracks.	–
Design
Weight (lightest version)
Weight (lightest version)	98 g	76 g (better)
Software
Software	Garmin	Garmin
Case materials
Case materials	Sapphire-glass lens, stainless-steel bezel, buttons and rear case; 10 ATM water rating.	Stainless-steel bezel (natural or Slate Grey), fibre-reinforced polymer case with metal rear cover, silicone band.
Size
Size	51 × 51 × 17.5 mm; 98 g with silicone band.	47 x 47 x 14.5 mm. 76 g with supplied band, 53 g case only. Included 22 mm QuickFit silicone band fits 125–208 mm wrists. Maker separately lists optional UltraFit 125–215 mm, leather 132–210 mm and metal 132–215 mm bands.
Reference and release detail
Reference and release detail	–	First documented availability is Garmin forum’s “Now Available” announcement dated 27 August 2024 at 16:14 UTC. UK first shipping date is not independently established; Japanese launch announced mid-September 2024 availability separately. This is fēnix E hardware, not fēnix 8 AMOLED or Solar.
Bands
Bands	QuickFit interchangeable bands.	–
Colours
Colours	Slate-grey model with black silicone band pictured.	–