Between the Watch SE 3 and Watch Ultimate, the Watch SE 3 comes out ahead in weight and display size, while the Watch Ultimate wins on battery life and water resistance. Overall, the Watch SE 3 scores 56.1 and the Watch Ultimate scores 64.5 on our Mars Score.
Which should you buy?
The Watch Ultimate is the clear pick on raw spec strength, leading by 8.4 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 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 weight, display size, cellular.
Pick the Watch Ultimate 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, water resistance, ecg, among others.
Both ship with comparable peak brightness, so those specs don't separate the two — focus on the differences below.
Bottom line: the Watch Ultimate 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
- ▲Weight — 43.00 g less. 33 vs 76.
- ▲Display size — 18.67% more. 1.78 " vs 1.5 ".
- ▲Has Cellular.
Why Huawei - Watch Ultimate wins
- ▲Battery life — 1766.67% more. 336 h vs 18 h.
- ▲Water resistance — 5.00 ATM more. 10 vs 5.
- ▲Has ECG.
- ▲Has SpO2.
Spec comparison
Design
| Spec | Apple - Watch SE 3 | Huawei - Watch Ultimate |
|---|---|---|
| Case size | 44 mm | 48.5 mmlead |
| Weight | 33 glead | 76 g |
| Case material | aluminum | titanium |
| Water resistanceⓘ | 5 ATM | 10 ATMlead |
Display
| Spec | Apple - Watch SE 3 | Huawei - Watch Ultimate |
|---|---|---|
| Display size | 1.78 "lead | 1.5 " |
| Always-on display | false | truelead |
| Peak brightnessⓘ | 1000 nits | 1000 nits |
Health & Fitness
| Spec | Apple - Watch SE 3 | Huawei - Watch Ultimate |
|---|---|---|
| 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 Ultimate |
|---|---|---|
| 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 Ultimate?+
Watch Ultimate lasts 336h vs 18h.
Do Watch SE 3 or Watch Ultimate support ECG?+
Watch Ultimate supports ECG; Watch SE 3 does not.
Which has cellular, Watch SE 3 or Watch Ultimate?+
Watch SE 3 offers a cellular variant; Watch Ultimate is Wi-Fi only.
Spec-level deep dives
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