Between the Galaxy Watch 6 Classic and Venu 3, the Galaxy Watch 6 Classic comes out ahead in peak brightness and display size, while the Venu 3 wins on battery life and weight. Overall, the Galaxy Watch 6 Classic scores 48.9 and the Venu 3 scores 62 on our Mars Score.
Which should you buy?
The Venu 3 is the clear pick on raw spec strength, leading by 13.1 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Galaxy Watch 6 Classic if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are peak brightness, display size, cellular.
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, weight.
Both ship with comparable ecg, spo2, water resistance, so those specs don't separate the two — focus on the differences below.
Bottom line: the Venu 3 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Samsung - Galaxy Watch 6 Classic wins
- ▲Peak brightness — 100.00% more. 2000 nits vs 1000 nits.
- ▲Display size — 5.00% more. 1.47 " vs 1.4 ".
- ▲Has Cellular.
Why Garmin - Venu 3 wins
- ▲Battery life — 740.00% more. 336 h vs 40 h.
- ▲Weight — 12.00 g less. 47 vs 59.
Spec comparison
Design
| Spec | Samsung - Galaxy Watch 6 Classic | Garmin - Venu 3 |
|---|---|---|
| Case size | 47 mmlead | 45 mm |
| Weight | 59 g | 47 glead |
| Case material | stainless steel | stainless steel |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Display
| Spec | Samsung - Galaxy Watch 6 Classic | Garmin - Venu 3 |
|---|---|---|
| Display size | 1.47 "lead | 1.4 " |
| Always-on display | true | true |
| Peak brightnessⓘ | 2000 nitslead | 1000 nits |
Health & Fitness
| Spec | Samsung - Galaxy Watch 6 Classic | Garmin - Venu 3 |
|---|---|---|
| ECG | true | true |
| SpO2 | true | true |
| Temperature sensor | true | true |
| Sleep tracking | true | true |
| Blood pressure | truelead | false |
Battery & Connectivity
| Spec | Samsung - Galaxy Watch 6 Classic | Garmin - Venu 3 |
|---|---|---|
| Battery life | 40 h | 336 hlead |
| GPS | true | true |
| Cellular | truelead | false |
| NFC | true | true |
| OS | WearOS | Garmin OSlead |
Frequently asked
Which has longer battery life, Galaxy Watch 6 Classic or Venu 3?+
Venu 3 lasts 336h vs 40h.
Do Galaxy Watch 6 Classic or Venu 3 support ECG?+
Both support ECG.
Which has cellular, Galaxy Watch 6 Classic or Venu 3?+
Galaxy Watch 6 Classic offers a cellular variant; Venu 3 is Wi-Fi only.
Spec-level deep dives
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