Garmin fēnix vs Garmin fēnix E

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fēnix compared with fēnix E

	Garminfēnix	Garminfēnix E
Overview
Released
Released	2012	August 2024
Display
Case sizes
Case sizes	49 mm	47 mm
Panel
Panel	LCD	OLED
Always-on display
Always-on display	Yes	Yes
Display detail
Display detail	Transflective monochrome LCD, 31 mm diameter and 70 × 70 pixels, with LED backlight and five 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	50 m	100 m (better)
Sensors
Sensors	High-sensitivity GPS receiver, barometric altimeter, three-axis compass and temperature sensor. Optional ANT+ heart-rate, foot-pod, speed/cadence and tempe temperature sensors.	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	Outdoor activity profiles including hiking, mountaineering, running and cycling; configurable data fields, Auto Pause, Auto Lap and training alerts. No optical wrist heart-rate sensor.	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	Waypoint, route and breadcrumb navigation with TracBack; worldwide city basemap and paperless geocaching, without preloaded detailed maps or turn-by-turn routing.	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 42 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	iPhone and Android
Storage
Storage	–	16 GB
Battery life detail
Battery life detail	Rechargeable 500 mAh lithium-ion battery; up to six weeks in watch mode, two weeks with sensors always on, sixteen hours in normal GPS mode or fifty hours in UltraTrac according to the owner's manual.	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	USB contact charging cradle and AC adapter.	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	ANT+ sensors and wireless sharing with compatible Garmin devices; Bluetooth Smart transfer to the BaseCamp Mobile iPhone app and USB computer transfer to BaseCamp or Garmin Connect.	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	20 MB internal memory; 1,000 waypoints, fifty routes, 10,000 track points and 100 saved tracks.	–
Design
Weight (lightest version)
Weight (lightest version)	82 g	76 g (better)
Software
Software	Garmin	Garmin
Case materials
Case materials	Shock-resistant housing, mineral-glass lens and polyurethane wristband; 50 m water resistance.	Stainless-steel bezel (natural or Slate Grey), fibre-reinforced polymer case with metal rear cover, silicone band.
Size
Size	49 × 49 × 17 mm; 82 g.	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.