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Garmin Instinct E vs Garmin Venu 3

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

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GarminInstinct EGarminVenu 3
Overview
ReleasedJanuary 2025August 2023
Display
Case sizes40 mm or 45 mm45 mm
PanelMemory-in-pixelOLED
Always-on displayYesYes
Display detailMonochrome 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.1.4-inch (35.4 mm) AMOLED touchscreen, 454 x 454 pixels, with optional always-on mode and two font sizes.
Screen protectionChemically strengthened glassCorning Gorilla Glass 3.
Health and fitness
ECGNoYes
Blood oxygenYesYes
Skin temperatureNoYes
Sleep apnoea alertsNoNo
High blood pressure alertsNoNo
Body compositionNoNo
Fall detectionNoNo
Crash detectionNoNo
GPSSingle-bandSingle-band
Water resistance100 m50 m
SensorsGarmin Elevate wrist heart rate; Pulse Ox; barometric altimeter; compass; accelerometer; thermometer. No gyroscope or multi-band GNSS.GPS, GLONASS, Galileo, Garmin Elevate wrist heart rate, Pulse Ox, barometric altimeter, compass, gyroscope, accelerometer and ambient light sensor; tempe accessory needed for ambient temperature.
Health featuresHRV 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.Heart rate, Pulse Ox, HRV status, sleep coach, nap detection, stress, Body Battery and overnight skin-temperature trends. Garmin ECG app requires supported region and current software.
Fitness featuresGarmin 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.More than 30 sports apps, Garmin Coach, animated workouts, workout benefit and recovery time; wheelchair mode tracks pushes and offers weight-shift alerts and specific workouts.
Safety featuresIncident detection during selected activities, assistance and LiveTrack require a paired compatible phone with network service. Screen flashlight, not a physical LED flashlight.Incident detection, assistance and LiveTrack require a paired phone; incident detection is unavailable in wheelchair mode.
Battery and connections
Battery life (maker's claim)Up to 16 daysUp to 14 days
In low-power modeUp to 40 daysUp to 26 days
Mobile data optionNoNo
Works withiPhone and AndroidiPhone and Android
Storage–8 GB
Battery life detailHeadline 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.Up to 14 days in smartwatch mode, five days with always-on display, 26 days in battery saver, 26 hours GPS-only, 20 hours all-systems GNSS or 11 hours all-systems GNSS with music.
ChargingRechargeable 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.Garmin proprietary charging cable.
ConnectivityBluetooth 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.Bluetooth, ANT+ and Wi-Fi; paired-phone calls and voice assistant through built-in speaker and microphone, Garmin Pay, Connect IQ, smart notifications and stored music.
Storage128 MB8 GB of memory/history.
Design
Weight (lightest version)41 g47 g
SoftwareGarminGarmin
Case materialsFibre-reinforced polymer case and bezel; silicone band. Maker states engineered to MIL-STD-810 for thermal and shock resistance.Stainless-steel bezel, fibre-reinforced polymer case and silicone band; 5 ATM water rating.
Size40 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.45 x 45 x 12 mm; 30 g without band or 47 g with the included band.
Bands40 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.Quick-release 22 mm band; fits wrists 135–200 mm.
ColoursCurrent 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.Black case and band with slate stainless-steel bezel.
In the boxInstinct E smartwatch; charging/data cable; documentation–

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