| Ultra | Series 8 | SE(2nd) | Series 7 | Series 6 | SE(1st) | Series 5 | Series 4 | Series 3 | Series 2 | Series 1 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| サイズ | 49mm | ○ | – | – | – | – | – | – | – | – | – | – |
| 45mm | – | ○ | – | ○ | – | – | – | – | – | – | – | |
| 44mm | – | – | ○ | – | ○ | ○ | ○ | ○ | – | – | – | |
| 42mm | – | – | – | – | – | – | – | – | ○ | ○ | ○ | |
| 41mm | – | ○ | – | ○ | – | – | – | – | – | – | – | |
| 40mm | – | – | ○ | – | ○ | ○ | ○ | ○ | – | – | – | |
| 38mm | – | – | – | – | – | – | – | – | ○ | ○ | ○ | |
| モデル | GPSモデル | – | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | – |
| GPS + Cellularモデル | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | – | – | – | |
| ボタン | Digital Crown | – | – | – | – | – | – | – | – | ○ | ○ | ○ |
| 触覚的な反応を返すDigital Crown | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | – | – | – | |
| アクションボタン | ○ | – | – | – | – | – | – | – | – | – | – | |
| センサー | 皮膚温センサー | ○ | ○ | – | – | – | – | – | – | – | – | – |
| 血中酸素ウェルネスセンサー | ○ | ○ | – | ○ | ○ | – | – | – | – | – | – | |
| 電気心拍センサー | ○ | ○ | – | ○ | ○ | – | ○ | ○ | – | – | – | |
| 光学式心拍センサー | ○(3rd) | ○(3rd) | ○(2th) | ○(3rd) | ○(3rd) | ○(2th) | ○(2th) | ○(2th) | ○ | ○ | ○ | |
| 高心拍数と低心拍数の通知 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | |
| 不規則な心拍リズムの通知 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | – | – | |
| 心電図アプリ | ○ | ○ | – | ○ | ○ | – | ○ | ○ | – | – | – | |
| 緊急 | 海外における緊急通報 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ||||
| 緊急SOS | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | |||
| 衝突事故検出 | ○ | ○ | ○ | |||||||||
| 転倒検出 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ||||
| 耐性 | 防沫性能 | – | – | – | – | – | – | – | – | – | – | 防沫性能30 |
| 耐水性能 | 100m | 50m | 50m | 50m | 50m | 50m | 50m | 50m | 50m | 50m | – | |
| 防塵性能 | IP6X | IP6X | – | – | – | – | – | – | – | – | – | |
| 通信規格 | Wi-Fi | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
| Bluetooth | Bluetooth 5.3 | Bluetooth 5.3 | Bluetooth 5.3 | Bluetooth 5.0 | Bluetooth 5.0 | Bluetooth 5.0 | Bluetooth 5.0 | Bluetooth 5.0 | Bluetooth 4.2 | Bluetooth 4.0 | Bluetooth 4.0 | |
| 計器 | GPS/GNSS | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | – |
| 気圧高度計 | – | – | – | – | – | – | – | ○ | ○ | – | – | |
| コンパス | ○ | ○ | ○ | ○ | ○ | ○ | ○ | – | – | – | – | |
| 常時計測の高度計 | ○ | ○ | ○ | ○ | ○ | ○ | – | – | – | – | – | |
| 容量 | 32GB | 32GB | 32GB | 32GB | 32GB | 32GB | 32GB | 16GB | 8GB | 8GB | 8GB | |
| 高速充電 | ○ | ○ | – | ○ | – | – | – | – | – | – | – |