![Samsung Galaxy Watch 8 (2025) 40mm Bluetooth Smartwatch, Cushion Design, Fitness Tracker, Sleep Coaching, Running Coach, Energy Score, Heart Rate Tracking, Silver [US Version, 2 Yr Warranty] Silver 40mm Bluetooth Watch8](https://i.shopsavvy.com/https://x.shopsavvy.com/https://m.media-amazon.com/images/I/31LaWf6wVqL._SL500_.jpg)
The Samsung Galaxy Watch 8 can work without a phone, but functionality depends on whether you have the Bluetooth or LTE model.
LTE Model (Cellular)
Works independently:
- Phone calls (speaker/mic)
- Text messages
- Music streaming (Spotify, YouTube Music)
- GPS navigation
- Gemini AI
- Emergency SOS
- Samsung Pay
- Notifications
Still requires phone:
- Initial setup (mandatory)
- ECG/blood pressure (Samsung phone required)
- App installations
- Some third-party apps
Cellular requirements:
- eSIM activation with carrier
- Monthly fee (~-15)
Bluetooth Model
Works offline:
- Time, alarms, timers
- Downloaded offline music
- GPS workout tracking
- Heart rate, steps, health monitoring
- Sleep tracking (syncs later)
Requires phone/internet:
- All notifications
- Calls and texts
- Gemini AI
- Streaming music
- Weather updates
Wi-Fi fallback: When connected to Wi-Fi without phone, can sync data, receive some notifications, and update apps.
Critical: Setup Requirement
Both models require an Android phone for initial setup. Cannot be avoided. LTE model operates independently only after initial configuration.
Bottom Line
For phone-free operation, get the LTE model with cellular service. Bluetooth model works for fitness tracking offline but loses smart features away from phone.
Compare Galaxy Watch 8 LTE prices to find the best deal on cellular models.
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How we researched this
Where this comes from: this answer draws on the product's published specifications and the reviews ShopSavvy collected for it, alongside prices from 1 retailer in ShopSavvy's price data, most recently seen Jun 17, 2026.
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