Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Garmin - Venu 4 | Garmin - Venu 3 |
|---|---|---|
| Battery life | 264 h | 336 h |
| Weight | 45 g | 47 g |
Between the Venu 4 and Venu 3, the Venu 4 comes out ahead in weight, while the Venu 3 wins on battery life. Overall, the Venu 4 scores 73.6 and the Venu 3 scores 74.9 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (73.6 vs 74.9). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the Venu 4 if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are weight. The single most decisive one: Weight — 2.00 g less. 45 vs 47.
Pick the Venu 3 if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. Its strongest claims are battery life. The single most decisive one: Battery life — 27.27% more. 336 h vs 264 h.
Both ship with comparable ecg, display size, cellular, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Garmin - Venu 4 or Garmin - Venu 3?
Garmin - Venu 3 leads the current Mars Score by 1.3 points.The more useful decision is the trade-off behind that result: compare battery life against the way you will actually use the product.
Choose Garmin - Venu 4 if…
Garmin - Venu 4 has the measurable edge on weight g.
Choose Garmin - Venu 3 if…
Garmin - Venu 3 has the measurable edge on battery life h.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Garmin - Venu 4 wins
- ▲Weight — 2.00 g less. 45 vs 47.
Why Garmin - Venu 3 wins
- ▲Battery life — 27.27% more. 336 h vs 264 h.
Spec comparison
Design
| Spec | Garmin - Venu 4 | Garmin - Venu 3 |
|---|---|---|
| Case size | 45 mm | 45 mm |
| Weight | 45 glead | 47 g |
| Case material | aluminum | stainless steel |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Display
| Spec | Garmin - Venu 4 | Garmin - Venu 3 |
|---|---|---|
| Display size | 1.4 " | 1.4 " |
| Always-on display | true | true |
| Peak brightnessⓘ | 1000 nits | 1000 nits |
Health & Fitness
| Spec | Garmin - Venu 4 | Garmin - Venu 3 |
|---|---|---|
| ECG | true | true |
| SpO2 | true | true |
| Temperature sensor | true | true |
| Sleep tracking | true | true |
| Blood pressure | false | false |
Battery & Connectivity
| Spec | Garmin - Venu 4 | Garmin - Venu 3 |
|---|---|---|
| Battery lifeⓘ | 264 h | 336 hlead |
| GPS | true | true |
| Cellular | false | false |
| NFC | true | true |
| OS | Garmin OS | Garmin OS |
Frequently asked
Which has longer battery life, Venu 4 or Venu 3?+
Venu 3 lasts 336 hours vs 264 hours.
Do Venu 4 or Venu 3 support ECG?+
Both support ECG.
Which has cellular, Venu 4 or Venu 3?+
Neither offers cellular.