Garmin Instinct 3 AMOLED vs Garmin Instinct E

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Instinct 3 AMOLED compared with Instinct E

	GarminInstinct 3 AMOLED	GarminInstinct E
Overview
Released
Released	January 2025	January 2025
Display
Case sizes
Case sizes	45 mm or 50 mm	40 mm or 45 mm
Panel
Panel	OLED	Memory-in-pixel
Always-on display
Always-on display	Yes	Yes
Display detail
Display detail	45 mm has a 1.2-inch (30 mm) 390 x 390-pixel AMOLED display; 50 mm has a 1.3-inch (33 mm) 416 x 416-pixel AMOLED display; five-button controls, no touchscreen	Monochrome sunlight-visible transflective memory-in-pixel display, custom two-window design; always visible, five-button controls and no touchscreen. 40 mm: 22 x 22 mm (0.86 x 0.86 inch), 166 x 166 pixels. 45 mm: 23 x 23 mm (0.9 x 0.9 inch), 176 x 176 pixels.
Screen protection
Screen protection	Chemically strengthened glass	Chemically strengthened glass
Health and fitness
ECG
ECG	No	No
Blood oxygen
Blood oxygen	Yes	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	Dual-band (L1 and L5)	Single-band
Water resistance
Water resistance	100 m	100 m
Sensors
Sensors	Garmin Elevate wrist heart rate; Pulse Ox; barometric altimeter; compass; gyroscope; accelerometer; thermometer	Garmin Elevate wrist heart rate; Pulse Ox; barometric altimeter; compass; accelerometer; thermometer. No gyroscope or multi-band GNSS.
Health features
Health features	HRV status; Body Battery; sleep score, sleep coach and naps; stress, respiration and abnormal heart-rate alerts; Health Snapshot; Pulse Ox availability varies by country; no ECG app	HRV status; Body Battery; advanced sleep monitoring, sleep score and nap detection; breathing variations; Health Snapshot and Health Status; continuous heart rate, abnormal high/low heart-rate alerts, stress and respiration tracking; fitness age; menstrual cycle/pregnancy tracking through Garmin Connect. Pulse Ox availability varies by country. Smart wake alarm is described in the current overview. Nutrition tracking in Garmin Connect requires a Connect+ plan; ordinary health syncing does not.
Fitness features
Fitness features	Training readiness and status; daily suggested running and cycling workouts; Garmin Coach; wrist running dynamics and power; PacePro; multisport and triathlon; breadcrumb navigation, TracBack and reference points; detailed maps available in paired Garmin Explore app, not as built-in watch maps	Garmin Coach, daily suggested running/cycling workouts, custom workouts, VO2 max, training effect and recovery time; running, cycling, pool/open-water swimming, hiking, strength, HIIT and other activities. Wrist running dynamics; ground-contact-time balance requires a compatible running-dynamics accessory. No running power, training readiness or training status in the current maker technical table. Breadcrumb courses, TracBack, reference points and waypoints; no built-in topographic maps. Current guide includes Jumpmaster and current web table Tactical/dual-grid labels, but the overview does not describe dedicated tactical controls; no stealth, night-vision or kill-switch capability attributed.
Safety features
Safety features	Built-in white/red LED flashlight with strobe; incident detection during selected activities, assistance and LiveTrack require a paired compatible phone	Incident detection during selected activities, assistance and LiveTrack require a paired compatible phone with network service. Screen flashlight, not a physical LED flashlight.
Battery and connections
Battery life (maker's claim)
Battery life (maker's claim)	Up to 24 days	Up to 16 days
In low-power mode
In low-power mode	Up to 30 days	Up to 40 days
Mobile data option
Mobile data option	No	No
Works with
Works with	iPhone and Android	iPhone and Android
Storage
Storage	4 GB	–
Battery life detail
Battery life detail	Headline claims use the 50 mm version. 45 mm: smartwatch up to 18 days, 7 days always-on; battery saver 24 days; GPS only 32 hours; all systems 25 hours; all systems plus multi-band 23 hours; max battery GPS 68 hours; expedition GPS 16 days. 50 mm: smartwatch 24 days, 9 days always-on; battery saver 30 days; GPS only 40 hours; all systems 32 hours; all systems plus multi-band 30 hours; max battery GPS 86 hours; expedition GPS 20 days. Multi-band figures assume typical SatIQ use. No solar charging.	Headline endurance uses the 45 mm case. 40 mm: smartwatch up to 14 days; battery saver up to 35 days; GPS only up to 21 hours; all satellite systems up to 14 hours; max-battery GPS up to 43 hours; expedition GPS up to 17 days. 45 mm: smartwatch up to 16 days; battery saver up to 40 days; GPS only up to 24 hours; all satellite systems up to 16 hours; max-battery GPS up to 50 hours; expedition GPS up to 20 days. Actual endurance depends on features, sensors, GPS, phone notifications and settings. No solar charging.
Charging
Charging	Garmin proprietary plug charging/data cable	Rechargeable built-in lithium-ion battery; Garmin proprietary charging/data connector. Included cable plugs into a USB-C computer port or AC adapter rated at least 5 W, according to the exact May 2026 owner guide.
Connectivity
Connectivity	Bluetooth and ANT+; GPS, GLONASS, Galileo, QZSS and BeiDou; multi-band and SatIQ; Garmin Pay; controls paired-phone music but does not store offline music; Garmin Messenger requires a paired phone	Bluetooth and ANT+; single-band GPS, GLONASS and Galileo. Smart notifications, Android text replies and paired-phone music controls. Garmin Share and Garmin Messenger through a compatible paired phone. No Garmin Pay, offline music playback or cellular connectivity.
Storage
Storage	–	128 MB
Design
Weight (lightest version)
Weight (lightest version)	53 g	41 g (better)
Software
Software	Garmin	Garmin
Case materials
Case materials	Fibre-reinforced polymer case and polymer/aluminium bezel; 10 ATM water rating; maker states MIL-STD-810 thermal and shock testing	Fibre-reinforced polymer case and bezel; silicone band. Maker states engineered to MIL-STD-810 for thermal and shock resistance.
Size
Size	45 mm is 45 x 45 x 14.9 mm and 53 g; 50 mm is 50 x 50 x 14.4 mm and 59 g; maker does not identify these as case-only weights	40 mm: 40 x 40 x 13.6 mm, 41 g. 45 mm: 45 x 45 x 14.2 mm, 48 g. Maker does not identify these as case-only weights.
Bands
Bands	45 mm uses QuickFit 22 mm and fits 137–204 mm wrists; 50 mm uses QuickFit 26 mm and fits 141–213 mm wrists	40 mm: 20 mm silicone band, QuickFit 20 compatible, fits 107–179 mm wrists. 45 mm: 22 mm silicone band, QuickFit 22 compatible, fits 132–213 mm wrists.
Colours
Colours	Current UK maker listings include Black, Citrine, Fern Green and Black/Bolt Blue combinations, depending on size; colours are cosmetic configurations	Current UK/US range: 40 mm Black with Charcoal Band (010-02932-00); 45 mm Black with Charcoal Band (010-02933-00); 45 mm Electric Lime with Electric Lime Band (010-02933-01), a cosmetic limited edition. All three are sellable/in stock. No 40 mm Electric Lime SKU appears in the current accessible maker range.
In the box
In the box	Instinct 3 AMOLED watch with silicone band; charging/data cable; documentation	Instinct E smartwatch; charging/data cable; documentation