Samsung Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection LTE US Version, Silver (Renewed)

Items Description

The Samsung Galaxy Watch 4 40mm Smartwatch is a compact wearable designed for health-conscious users who want comprehensive wellness tracking and daily connectivity in a lightweight package. This Silver 40mm variant pairs Samsung's advanced sensor suite with a timeless aesthetic, making it a practical choice for fitness enthusiasts, professionals, and anyone seeking deeper insight into their daily activity and recovery. The watch serves as a full-featured companion for workouts, sleep monitoring, and on-the-go communication.

 

The 40mm Silver version offers a balanced fit for a range of wrist sizes, while the Samsung BioActive Sensor combines optical heart rate, electrical heart signal, and bioelectrical impedance analysis into a single compact module. This integration allows users to measure key health metrics such as body composition, heart rate, and blood oxygen levels without requiring multiple devices. The round Super AMOLED display provides a bright, responsive interface for navigating fitness apps, notifications, and health summaries.

 

Key Advantages of the Samsung Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection LTE US Version, Silver (Renewed)

 

1. Comprehensive Health Monitoring with Body Composition Analysis

The Galaxy Watch 4 40mm integrates a set of wellness tools that support daily health awareness beyond basic step counting. The Samsung BioActive Sensor enables measurement of skeletal muscle mass, basal metabolic rate, body water, and body fat percentage directly from the wrist, offering a convenient way to track changes over time.

 

• Body Composition: Measures muscle mass, fat percentage, and BMI using bioelectrical impedance analysis.
• ECG Monitoring: Records electrical heart signals to detect irregular rhythms, with results viewable in the Samsung Health Monitor app.
• Blood Oxygen: Tracks SpO2 levels during the day and overnight to support altitude adaptation and overall wellness.
• Heart Rate Alerts: Sends notifications when resting heart rate falls outside set thresholds.

 

2. Advanced Sleep Coaching and Recovery Insights

The 40mm Silver model analyzes sleep stages including REM, light, and deep sleep, then assigns a sleep score to help users understand nightly rest quality. The watch also detects snoring patterns when paired with a phone, and provides guidance on improving sleep hygiene through the Samsung Health platform.

 

• Sleep Score: Combines duration, regularity, and wake periods into a single daily metric.
• Snore Detection: Uses the phone microphone during sleep to identify snoring episodes.
• Recovery Support: Offers insights on how sleep quality affects next-day readiness and workout performance.

 

3. GPS, LTE, and Fall Detection for Active Lifestyles

This US version with LTE connectivity provides built-in GPS tracking for outdoor runs, cycling, and hikes without requiring a phone nearby. The watch also supports fall detection, which can trigger an emergency alert to designated contacts if a hard impact is detected, adding a layer of safety for solo training sessions.

 

• Built-in GPS: Tracks route, pace, and distance accurately during outdoor activities.
• LTE Support: Enables calls, texts, and data streaming when the phone is not in range.
• Fall Detection: Automatically sends an SOS message with location when a fall is detected.
• Auto Workout Detection: Recognizes common activities such as walking, running, and rowing to start tracking automatically.

 

4. Wear OS and Seamless App Ecosystem

The Galaxy Watch 4 40mm runs on Wear OS powered by Samsung, offering access to a wide range of third-party apps from the Google Play Store. This includes popular fitness apps, productivity tools, and music streaming services, expanding the watch's functionality beyond native Samsung features.

 

• Google Play Access: Download apps such as Strava, Spotify, and MyFitnessPal directly to the watch.
• Quick Pairing: Connects easily with Android smartphones via Bluetooth 5.0.
• Tizen Integration: Retains Samsung's optimized interface for fast navigation and battery efficiency.
• Customizable Watch Faces: Choose from a variety of analog, digital, and health-focused watch faces to suit personal style.

 

5. Daily Convenience and Durability

The Silver aluminum case provides a lightweight yet durable shell that suits both gym sessions and office wear. With 5 ATM water resistance and MIL-STD-810G durability certification, the watch handles workouts, rain, and everyday challenges without concern. The 40mm size keeps the device unobtrusive while still offering ample screen space for notifications and health metrics.

 

• 5 ATM Rating: Suitable for swimming in shallow water and showering.
• MIL-STD-810G: Tested against temperature extremes, vibration, and shock.
• Fast Charging: Reaches a full charge in under two hours with the included magnetic charger.
• Silicon Strap: Sweat-resistant and comfortable for all-day wear.

 

The Samsung Galaxy Watch 4 40mm Silver is well-suited for users who want a compact smartwatch with comprehensive health tracking, LTE independence, and reliable build quality. For runners, gym-goers, or professionals who need notifications without checking a phone, this watch provides a balanced set of tools that fit into a daily routine without excess bulk. It offers a direct path to understanding body composition, sleep quality, and activity levels in a single device.

Specifications of Samsung Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection LTE US Version, Silver (Renewed)

Brand	Samsung
Operating System	One UI Watch 3
Memory Storage Capacity	16 GB
Special Feature	GPS, Sleep Monitor, Time Display
Battery Capacity	247 Milliamp Hours
Connectivity Technology	Bluetooth, Cellular GPS
Wireless Communication Standard	Bluetooth
Battery Cell Composition	Lithium Ion
GPS	True
Shape	Round
Screen Size	40 Millimeters

Prev:  SAMSUNG Galaxy Watch 4, 44mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection LTE US Version, Green (Renewed)     Next: Samsung Galaxy Watch 4 Classic 42mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection Bluetooth US Version, Black (Renewed)

Specifications
[Brand]	Samsung
[Operating System]	One UI Watch 3
[Memory Storage Capacity]	16 GB
[Special Feature]	GPS, Sleep Monitor, Time Display
[Battery Capacity]	247 Milliamp Hours
[Connectivity Technology]	Bluetooth, Cellular GPS
[Wireless Communication Standard ]	Bluetooth
[Battery Cell Composition]	Lithium Ion
[GPS]	True
[Shape]	Round
[Screen Size]	40 Millimeters

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