Between the Watch GT 6 and Venu 3, the Watch GT 6 comes out ahead in peak brightness and display size, while the Venu 3 wins on weight. Overall, the Watch GT 6 scores 63.8 and the Venu 3 scores 62 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (63.8 vs 62). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.
Pick the Watch GT 6 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.
Pick the Venu 3 if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight.
Both ship with comparable battery life, ecg, cellular, so those specs don't 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 tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Huawei - Watch GT 6 wins
- ▲Peak brightness — 50.00% more. 1500 nits vs 1000 nits.
- ▲Display size — 5.00% more. 1.47 " vs 1.4 ".
Why Garmin - Venu 3 wins
- ▲Weight — 5.00 g less. 47 vs 52.
Spec comparison
Design
| Spec | Huawei - Watch GT 6 | Garmin - Venu 3 |
|---|---|---|
| Case size | 46 mmlead | 45 mm |
| Weight | 52 g | 47 glead |
| Case material | stainless-steel | stainless steel |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Display
| Spec | Huawei - Watch GT 6 | Garmin - Venu 3 |
|---|---|---|
| Display size | 1.47 "lead | 1.4 " |
| Always-on display | true | true |
| Peak brightnessⓘ | 1500 nitslead | 1000 nits |
Health & Fitness
| Spec | Huawei - Watch GT 6 | Garmin - Venu 3 |
|---|---|---|
| ECG | true | true |
| SpO2 | true | true |
| Temperature sensor | true | true |
| Sleep tracking | true | true |
| Blood pressure | false | false |
Battery & Connectivity
| Spec | Huawei - Watch GT 6 | Garmin - Venu 3 |
|---|---|---|
| Battery life | 336 h | 336 h |
| GPS | true | true |
| Cellular | false | false |
| NFC | true | true |
| OS | HarmonyOS | Garmin OSlead |
Frequently asked
Which has longer battery life, Watch GT 6 or Venu 3?+
Venu 3 lasts 336h vs 336h.
Do Watch GT 6 or Venu 3 support ECG?+
Both support ECG.
Which has cellular, Watch GT 6 or Venu 3?+
Neither offers cellular.
Spec-level deep dives
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