Who is the Apple - Watch SE 3 for?
Entry-tier smartwatche. Below 58 on the Mars Score means several weighted specs trail the category leaders by a wide margin.
Only consider this if there is a specific reason — price, brand loyalty, ecosystem fit. The best-of page shows what your money buys a tier up.
Mars Score is computed from 17 measured specs against the transparent formula for the smartwatches category. No editorial picks, no paid placement.
Apple - Watch SE 3: advantages & disadvantages
Measured against every smartwatches we track, here is where the Apple - Watch SE 3 pulls ahead — and where it gives ground.
- ▲Includes GPS — a feature not every smartwatches offers.
- ▲Includes Cellular — a feature not every smartwatches offers.
- ▲Weight: 33 g — well above the typical smartwatches.
- ▼No ECG — a feature most stronger smartwatches include.
- ▼No Always-on display — a feature most stronger smartwatches include.
- ▼No SpO2 — a feature most stronger smartwatches include.
- ▼Battery life: 18 h — among the weakest in the smartwatches category.
Pros are specs scoring ≥75% of the category normalization range. Cons are ≤35%. Derived from the Mars Score formula — no hand-curated lists.
At a glance
- Display size
- 1.78"
- Case size
- 44mm
- Battery life
- 18h
- OS
- watchOS
All specifications
Design
- Case size
- 44 mm
- Weight
- 33 g
- Case material
- aluminum
- Water resistance?
- 5 ATM
Display
- Display size
- 1.78 "
- Always-on display
- false
- Peak brightness?
- 1000 nits
Health & Fitness
- ECG
- false
- SpO2
- false
- Temperature sensor
- false
- Sleep tracking
- true
- Blood pressure
- false
Battery & Connectivity
- Battery life?
- 18 h
- GPS
- true
- Cellular
- true
- NFC
- true
- OS
- watchOS
Latest from the lab
All lab reports →Popular comparisons featuring the Apple - Watch SE 3
The 12 closest matchups in the Smartwatches category, sorted by Mars Score proximity — the fights most worth your time.
Browse by segment
How Apple - Watch SE 3 fits the Smartwatches field
Apple - Watch SE 3 is listed in the Smartwatches catalog with a Mars Score of 55.9. It currently ranks 22 of 24 products in this category by Mars Score.This page is most useful when you match the product's strongest measurable specifications to your own workload instead of treating one number as a universal recommendation.
Key specifications to check
- Display size
- 1.78 "
- Case size
- 44 mm
- Battery life
- 18 h
- OS
- watchOS
Values are shown exactly as stored in the current catalog. A dash means the value is not available; it is not a zero and is not treated as a win or loss.
Who should consider it?
Start with the priorities represented by display size, case size, battery life. Buyers who value those dimensions should compare this product against the closest same-category alternatives below, then verify regional pricing, warranty, and configuration before purchase.
Closest alternatives
Frequently asked
What is the Mars Score for Apple - Watch SE 3?+
Apple - Watch SE 3 scores 55.9 on the transparent Mars Score formula for smartwatches, computed from its published specs against the category's weighted normalization.
What category does Apple - Watch SE 3 belong to?+
Apple - Watch SE 3 is a Apple smartwatche catalogued in the Smartwatches category.
When was Apple - Watch SE 3 released?+
Apple - Watch SE 3 was released on 2025-09-19.
What is the display size of Apple - Watch SE 3?+
Apple - Watch SE 3 has a display size of 1.78 ".
What is the case size of Apple - Watch SE 3?+
Apple - Watch SE 3 has a case size of 44 mm.
What is the battery life of Apple - Watch SE 3?+
Apple - Watch SE 3 has a battery life of 18 h.