Garmin Instinct E 45mm vs Venu 4 45mm
Size, specs & wrist fit compared
Which one fits you
Both need much the same wrist: neither overhangs from 16 cm (6.3 in) round, and both are in their sweet spot around 17–19 cm. Wrist size will not decide between these two.
What else differs
- Screen: the Instinct E 45mm uses a memory-in-pixel screen that is easy to read in sunlight and sips battery, the Venu 4 45mm a bright AMOLED screen.
- Battery: 16 days for the Instinct E 45mm against 12 days for the Venu 4 45mm in everyday use; 24 hours for the Instinct E 45mm against 20 hours for the Venu 4 45mm with GPS on.
The Instinct E 45mm and Venu 4 45mm share a near-identical 45mm case, so on the wrist the difference is thickness and weight.
1.7mm thinner, the Venu 4 45mm is the one that slides under a shirt cuff.
The Instinct E 45mm is 1.7mm thicker than the Venu 4 45mm.
Instinct E 45mm
Venu 4 45mm
Instinct E 45mm or Venu 4 45mm by wrist size
| Wrist round (mm left each side) | Instinct E 45mm≈51.5mm lug to lug, est. | Venu 4 45mm≈51.5mm lug to lug, est. |
|---|---|---|
| 14 cm / 5.5 in | Overhangs (3.2mm over) | Overhangs (3.2mm over) |
| 15 cm / 5.9 in | Overhangs (1.6mm over) | Overhangs (1.6mm over) |
| 16 cm / 6.3 in | Bold (0.1mm) | Bold (0.1mm) |
| 17 cm / 6.7 in | Sweet spot (1.7mm) | Sweet spot (1.7mm) |
| 18 cm / 7.1 in | Sweet spot (3.3mm) | Sweet spot (3.3mm) |
| 19 cm / 7.5 in | Balanced (4.9mm) | Balanced (4.9mm) |
| 20 cm / 7.9 in | Balanced (6.5mm) | Balanced (6.5mm) |
Switch or add watches
Garmin
Instinct E 45mm
Garmin
Venu 4 45mm
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Battery life compared
Furthest apart in Battery saver mode, where the Instinct E 45mm lasts 1.6× as long as the Venu 4 45mm (40 days against 25 days).
Instinct E 45mmVenu 4 45mm
Battery saver
40 days25 daysExpedition
20 days—Smartwatch
16 days12 daysMax battery GPS
50 hours—GPS only
24 hours20 hoursAll systems
16 hours19 hoursAll systems + multi-band
—17 hoursAll systems with music
—9 hoursAll systems + multi-band with music
—9 hours
More comparisons
2D Dimension Schematics
- Garmin Instinct E 45mm 45mm × ≈51.5mm (est.) · 14.2mm thick
- Garmin Venu 4 45mm 45mm × ≈51.5mm (est.) · 12.5mm thick
3D preview
Instinct E 45mm vs Venu 4 45mm on a wrist
Specifications
The short version
6 key specs| Spec | GarminInstinct E 45mm | GarminVenu 4 45mm |
|---|---|---|
| Case Width | 45mm | 45mm |
| Thickness | 14.2mm | 12.5mm |
| Shape | Circular | Circular |
| Display type | Monochrome, sunlight-visible, transflective memory-in-pixel (MIP) | AMOLED (optional always-on mode) |
| Battery life | Smartwatch: Up to 16 days Battery Saver Watch Mode: Up to 40 days GPS: Up to 24 hours All Satellite Systems:16 hours Max Battery GPS Mode: Up to 50 hours Expedition GPS Activity: Up to 20 days | Smartwatch mode: Up to 12 days (4 days display always-on) Battery Saver Smartwatch mode: Up to 25 days GPS-Only GNSS mode: Up to 20 hours All-Systems GNSS mode: Up to 19 hours All-Systems GNSS mode with music: Up to 9 hours All-Systems GNSS mode + Multi-band: Up to 17 hours All-Systems GNSS mode + Multi-band with music: Up to 9 hours See Details |
| Released | 2025 | 2025 |
Where the specifications differ
9 differences| Spec | Garmin Instinct E 45mm | Garmin Venu 4 45mm |
|---|---|---|
| General | ||
| Battery life | Smartwatch: Up to 16 days Battery Saver Watch Mode: Up to 40 days GPS: Up to 24 hours All Satellite Systems:16 hours Max Battery GPS Mode: Up to 50 hours Expedition GPS Activity: Up to 20 days | Smartwatch mode: Up to 12 days (4 days display always-on) Battery Saver Smartwatch mode: Up to 25 days GPS-Only GNSS mode: Up to 20 hours All-Systems GNSS mode: Up to 19 hours All-Systems GNSS mode with music: Up to 9 hours All-Systems GNSS mode + Multi-band: Up to 17 hours All-Systems GNSS mode + Multi-band with music: Up to 9 hours See Details |
| Display Size | custom, two-window design; 0.9” x 0.9” (23 x 23 mm) | 1.4" (35.3 mm) diameter |
| Case material | fiber-reinforced polymer | stainless steel and fiber-reinforced polymer |
| Memory/History | 128 MB | 8 GB |
| Display resolution | 176 x 176 pixels | 454 x 454 pixels |
| What You'll Love | ||
| Display type | Monochrome, sunlight-visible, transflective memory-in-pixel (MIP) | AMOLED (optional always-on mode) |
| Water rating | 10 ATM | Swim, 5 ATM |
| Pulse Ox blood oxygen | Yes | yes (spot-check, and optional all-day acclimation and in sleep) |
| Battery life (smartwatch mode) | Up to 16 days | Up to 12 days |
The other 9 specifications both list are identical.
Full Garmin Instinct E 45mm specifications →Full Garmin Venu 4 45mm specifications →