Garmin fēnix 8 Solar vs Garmin fēnix E

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

Only show differences

Better figure, where one is clearly better

Share comparison

fēnix 8 Solar compared with fēnix E

	Garminfēnix 8 Solar	Garminfēnix E
Overview
Released
Released	August 2024	August 2024
Display
Case sizes
Case sizes	47 mm or 51 mm	47 mm
Panel
Panel	Memory-in-pixel	OLED
Always-on display
Always-on display	Yes	Yes
Display detail
Display detail	Always-visible sunlight-readable transflective colour memory-in-pixel (MIP) touchscreen, five leakproof inductive buttons. 47 mm: 33 mm (1.3 inch), 260 x 260 pixels. 51 mm: 35.56 mm (1.4 inch), 280 x 280 pixels.	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	Power Sapphire solar charging lens	Corning Gorilla Glass; no Sapphire configuration in the exact current range.
Health and fitness
ECG
ECG	Yes	No
Blood oxygen
Blood oxygen	Yes	Yes
Skin temperature
Skin temperature	Yes	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	Dual-band (L1 and L5)	Single-band
Water resistance
Water resistance	100 m	100 m
Sensors
Sensors	GPS, GLONASS, Galileo, QZSS and BeiDou; SatIQ automatic multi-band selection; Garmin Elevate wrist heart rate, Pulse Ox, barometric altimeter, compass, gyroscope, accelerometer, thermometer, ambient light and depth sensor to 40 m.	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	Garmin ECG App where regionally available with compatible phone and watch software; Pulse Ox availability varies by country. HRV status, Body Battery, health status/snapshot, skin temperature, sleep coach/score/alignment, breathing variations, nap detection, stress/respiration tracking, lifestyle logging, jet lag adviser and menstrual-cycle/pregnancy tracking. Current maker table includes smart wake alarm and past ovulation estimates.	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	Training readiness/status, training load/focus/effect, endurance and hill scores, running tolerance, running power/dynamics, PacePro, ClimbPro, real-time stamina and recovery time. Running economy and step speed loss require a compatible accessory. Garmin running, cycling, strength and triathlon coaching. Scuba single-gas air/nitrox (21–40% oxygen) and apnea modes, EN 13319 depth sensor to 40 m; dive rating is distinct from 10 ATM surface water resistance. Golf, ski, climbing, cycling, swimming, multisport and strength activity profiles. Preloaded TopoActive maps on these Sapphire versions, downloadable regional maps over Wi-Fi, dynamic round-trip routing, NextFork, routes and turn-by-turn directions; golf and SkiView maps. Optional Outdoor Maps+ subscription adds premium maps. No need for a phone to follow stored maps/routes.	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	LED flashlight with white/red light and strobe. Incident detection, assistance, LiveTrack and live event sharing require a compatible paired phone and appropriate connectivity. Can control a separate compatible inReach device; LTE/satellite/SOS built into fēnix 8 Pro are not features of this Solar model.	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 30 days	Up to 16 days
In low-power mode
In low-power mode	Up to 48 days	Up to 21 days
Mobile data option
Mobile data option	No	No
Works with
Works with	iPhone and Android	iPhone and Android
Storage
Storage	32 GB (better)	16 GB
Battery life detail
Battery life detail	Headline figures are 51 mm without solar: up to 30 days smartwatch and 48 days battery-saver watch mode. 47 mm: smartwatch 21 days/28 with solar; saver 34/58 days; GPS-only 67/92 h; all satellites 48/59 h on current UK web table (September 2026 owner guide instead says 49 h with solar); multi-band 37/43 h; all satellites plus music 13 h; maximum-battery GPS 132/283 h; expedition 34/58 days. 51 mm: smartwatch 30/48 days; saver 48/107 days; GPS-only 95/149 h; all satellites 68/92 h; multi-band 52/65 h; music 18 h; maximum-battery GPS 186/653 h; expedition 50/118 days. Solar watch/saver/expedition claims assume all-day wear with three hours daily outside at 50,000 lux; GPS solar claims assume use outside at 50,000 lux, with typical SatIQ use for multi-band. Actual battery life depends on enabled features.	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	Garmin proprietary plug cable to USB-C computer port or AC adaptor rated at least 5 W, per current owner guide. Lithium-ion battery. Solar charging stops when fully charged or connected to external power.	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	Bluetooth, ANT+ and Wi-Fi. Calls use a paired phone; offline watch voice commands and voice notes use the built-in microphone/speaker. Garmin Messenger requires a paired phone/app for ordinary messages. Garmin Pay with supported banks; downloaded local music or supported subscription music services; Connect IQ apps and Garmin Share.	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.
Design
Weight (lightest version)
Weight (lightest version)	80 g	76 g (better)
Software
Software	Garmin	Garmin
Case materials
Case materials	Titanium bezel (natural or Carbon Grey DLC), fibre-reinforced polymer case and metal rear cover; silicone band.	Stainless-steel bezel (natural or Slate Grey), fibre-reinforced polymer case with metal rear cover, silicone band.
Size
Size	47 mm: 47 x 47 x 15.2 mm. 51 mm: 51 x 51 x 15.4 mm. Silicone wrist fit: 125–208 mm (47 mm), 127–210 mm (51 mm). QuickFit 22 mm and 26 mm bands respectively. 47 mm 80 g with band, 57 g case only; 51 mm 95 g with band, 67 g case only. Headline weight describes 47 mm with supplied 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	Maker announced 27 August 2024; its Italian launch page states both Solar sizes were available that day. UK first shipping day is not independently established.	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.