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Apple Apple Watch SE (3rd Gen) vs Apple Apple Watch Series 9 (45mm)
Apple Apple Watch SE (3rd Gen) ($249) vs Apple Apple Watch Series 9 (45mm) ($124) — side-by-side specs, weight, pros and cons to help you pick the right smartwatch.
Spec-by-spec
| Spec | Apple Apple Watch SE (3rd Gen) | Apple Apple Watch Series 9 (45mm) |
|---|---|---|
| Price | $249 | $124 |
| Weight | 26g | 38.7g |
| Chip | S9 | S9 SiP |
| Display | 40mm or 44mm LTPO | 2000 nit always-on Retina |
| Sensors | Accelerometer + heart rate + GPS | — |
| Battery | 18h | — |
| WR | 50m | — |
| Price | $249 (40mm) | — |
| Case | — | 45mm aluminium, GPS |
| Water | — | 50m, WR50 |
| Sizes | — | 41mm and 45mm |
| Weight | — | 38.7g (Apple published) |
Pros & Cons
Apple Apple Watch SE (3rd Gen)
- Half price of Series 11
- S9 chip runs everything fast
- Same design language
- Crash Detection included
- All Apple Watch apps run
- No ECG or Blood Oxygen
- Aluminum only (no titanium)
- Older design vs Series 11
Apple Apple Watch Series 9 (45mm)
- Double Tap works one-handed
- 2000 nit display is genuinely bright outdoors
- On-device Siri
- Same case design as the Series 7 and 8
- Battery still about 18 hours
- Blood oxygen disabled on some US units
Apple Apple Watch Series 9 (45mm) is the better value at $124. If weight matters most, Apple Apple Watch SE (3rd Gen) carries lighter at 26g. Both are part of our curated smartwatch index — tap through to check current pricing.
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