Between the Watch SE 3 and Watch GT 6, the Watch SE 3 comes out ahead in display size and weight, while the Watch GT 6 wins on battery life and peak brightness. Overall, the Watch SE 3 scores 56.1 and the Watch GT 6 scores 63.8 on our Mars Score.
Which should you buy?
The Watch GT 6 edges ahead on the Mars Score (56.1 vs 63.8), but the 7.7-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Watch SE 3 if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are display size, weight, cellular.
Pick the Watch GT 6 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, peak brightness, ecg, among others.
Both ship with comparable water resistance, so those specs don't separate the two — focus on the differences below.
Bottom line: the Watch GT 6 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Apple - Watch SE 3 wins
- ▲Display size — 21.09% more. 1.78 " vs 1.47 ".
- ▲Weight — 19.00 g less. 33 vs 52.
- ▲Has Cellular.
Why Huawei - Watch GT 6 wins
- ▲Battery life — 1766.67% more. 336 h vs 18 h.
- ▲Peak brightness — 50.00% more. 1500 nits vs 1000 nits.
- ▲Has ECG.
- ▲Has SpO2.
Spec comparison
Design
| Spec | Apple - Watch SE 3 | Huawei - Watch GT 6 |
|---|---|---|
| Case size | 44 mm | 46 mmlead |
| Weight | 33 glead | 52 g |
| Case material | aluminum | stainless-steel |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Display
| Spec | Apple - Watch SE 3 | Huawei - Watch GT 6 |
|---|---|---|
| Display size | 1.78 "lead | 1.47 " |
| Always-on display | false | truelead |
| Peak brightnessⓘ | 1000 nits | 1500 nitslead |
Health & Fitness
| Spec | Apple - Watch SE 3 | Huawei - Watch GT 6 |
|---|---|---|
| ECG | false | truelead |
| SpO2 | false | truelead |
| Temperature sensor | false | truelead |
| Sleep tracking | true | true |
| Blood pressure | false | false |
Battery & Connectivity
| Spec | Apple - Watch SE 3 | Huawei - Watch GT 6 |
|---|---|---|
| Battery life | 18 h | 336 hlead |
| GPS | true | true |
| Cellular | truelead | false |
| NFC | true | true |
| OS | watchOS | HarmonyOSlead |
Frequently asked
Which has longer battery life, Watch SE 3 or Watch GT 6?+
Watch GT 6 lasts 336h vs 18h.
Do Watch SE 3 or Watch GT 6 support ECG?+
Watch GT 6 supports ECG; Watch SE 3 does not.
Which has cellular, Watch SE 3 or Watch GT 6?+
Watch SE 3 offers a cellular variant; Watch GT 6 is Wi-Fi only.
Spec-level deep dives
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