Garmin Venu 4 vs Garmin Vivoactive 6

Garmin Venu 4 and Garmin Vivoactive 6 are watches both released in 2025, with overlapping phone compatibility. This comparison separates the catalog's listed specifications from missing information and approximate values. It covers 16 fields, including 6 exact differences; it does not choose a winner.

Specifications side by side

Field	Garmin Venu 4	Garmin Vivoactive 6
Release year	2025	2025
Case sizes	41 / 45 mm	42 mm
Display	AMOLED, Always-On	AMOLED, Always-On
Battery, as listed	Up to 12 days	Up to 11 days
Operating system	Garmin OS	Garmin OS
Phone compatibility	Android, iPhone	Android, iPhone
Cellular connection	None	None
Water rating	5ATM	5ATM
Case material	Metal	Polymer/aluminum
GPS	Dual-frequency GNSS	Standard GPS
Maps	No	No
Payment system	Garmin Pay	Garmin Pay
Plan requirement	Not required	Not required
Listed sensors and features	Sleep apnea, ECG, HRV, Readiness score, SpO2, Skin temperature	Sleep apnea, HRV, Readiness score, SpO2
Safety features	livelocate, SOS calling	livelocate, SOS calling
Hardware flashlight	Yes	No

"Not listed" means the catalog has no usable value for that field. It does not mean the watch lacks the feature. Approximate values stay visible but do not support the difference count or numeric deltas.

Where they differ

Case sizes: Garmin Venu 4 lists 41 / 45 mm; Garmin Vivoactive 6 lists 42 mm. Keep the variant qualifications when comparing an individual model; this row describes the catalog entry rather than every configuration.
Battery, as listed: Garmin Venu 4 lists Up to 12 days; Garmin Vivoactive 6 lists Up to 11 days. These are the full listed battery descriptions. Different modes or case variants prevent a single numeric battery-life delta.
Case material: Garmin Venu 4 lists Metal; Garmin Vivoactive 6 lists Polymer/aluminum. Keep the variant qualifications when comparing an individual model; this row describes the catalog entry rather than every configuration.
GPS: Garmin Venu 4 lists Dual-frequency GNSS; Garmin Vivoactive 6 lists Standard GPS.
Listed sensors and features: Garmin Venu 4 lists Sleep apnea, ECG, HRV, Readiness score, SpO2, Skin temperature; Garmin Vivoactive 6 lists Sleep apnea, HRV, Readiness score, SpO2. This compares the listed feature names, not measurement accuracy, clinical usefulness or availability in a particular country.
Hardware flashlight: Garmin Venu 4 lists Yes; Garmin Vivoactive 6 lists No.

What separates these two

Two 2025 Garmin smartwatches. The Venu 4 lists dual-band GNSS against standard GPS on the Vivoactive 6, up to 12 days of battery against 11, voice control and a flashlight, neither of which the Vivoactive lists. Its sensor list adds ECG and a skin temperature sensor; on listed specifications, the Vivoactive 6 does not counter with a sensor the Venu lacks. Both list sleep apnea detection, a readiness score, Garmin Pay and the same safety features. The Venu 4 comes in two sizes; the Vivoactive 6 comes in one 42 mm case.

Where they are the same

Both list release year: 2025.
Both list display: AMOLED, Always-On.
Both list operating system: Garmin OS.
Both list phone compatibility: Android, iPhone.
Both list cellular connection: None.
Both list water rating: 5ATM.
Both list maps: No.
Both list payment system: Garmin Pay.
Both list plan requirement: Not required.
Both list safety features: livelocate, SOS calling.

Which one fits you

Garmin Venu 4 is listed as a watch compatible with Android, iPhone. Start with that phone requirement before comparing the other rows. The exact differences above are a way to identify which listed specifications matter to your use, not evidence that one model is better in every respect.

Garmin Vivoactive 6 is listed as a watch compatible with Android, iPhone. Start with that phone requirement before comparing the other rows. The exact differences above are a way to identify which listed specifications matter to your use, not evidence that one model is better in every respect.