Customer support: Monday to Friday 9 - 18 Monday to Friday 9 - 18 +372 502 2230 [email protected]
12-month Warranty.
12-month Warranty.
Free & fast delivery.
Free & fast delivery.
Secure payment
Secure payment
Satisfied customers
Satisfied customers
Easy returns
Easy returns

Samsung Galaxy Watch4 40mm LTE R865F

All of our refurbished Samsung Galaxy Watch4 devices have been thoroughly checked. Order today and receive your order in 1-3 days on average! All purchases are subject to a 14-day money back guarantee and 12 months warranty.

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Estimated delivery: 09.03.2026 - 11.03.2026
12-months warranty: Read more about the warranty conditions from
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14-day return policy: If the product does not match its description, we will gladly accept a return.
Description
Specification

Samsung Galaxy Watch4 40mm LTE R865F

Discover the power of connectivity and health monitoring with the Samsung Galaxy Watch4 40mm LTE R865F. This cutting-edge smartwatch combines sophisticated design with advanced technology, offering seamless integration with your lifestyle. Stay connected, monitor your health, and enjoy a range of smart features right from your wrist.

Key Features

LTE Connectivity

  • Stay connected on the go without the need for your smartphone.
  • Make calls, send texts, and stream music directly from your watch.

Advanced Health Monitoring

  • Body Composition Analysis: Measure body fat, skeletal muscle, body water, and more with Samsung BioActive Sensor.
  • Heart Rate Monitoring: Continuous heart rate tracking with alerts for irregular readings.
  • Sleep Tracking: Advanced sleep analysis with insights to improve your rest.

Fitness and Workout Tracking

  • Automatic detection of physical activities such as walking, running, swimming, and more.
  • Over 90 exercise modes to choose from for detailed tracking.
  • Integration with popular fitness apps like Samsung Health.

Sleek and Durable Design

  • 40mm aluminum case with a sleek, lightweight design.
  • Available in various colors to match your style.
  • 5 ATM water resistance, making it suitable for swimming and outdoor activities.

Smart Features and Compatibility

  • Google Wear OS: Access a wide range of apps and services.
  • Samsung Pay: Make contactless payments directly from your wrist.
  • Music Control: Stream and control your favorite playlists.

Long-Lasting Battery Life

  • Up to 40 hours of battery life on a single charge.
  • Fast charging capabilities ensure you’re never offline for long.
Specifications
  • Display: 1.2-inch Super AMOLED (396 x 396 resolution)
  • Processor: Exynos W920 Dual-Core 1.18 GHz
  • Memory: 1.5GB RAM + 16GB internal storage
  • Sensors: Accelerometer, Gyro, Barometer, HRM, Ambient Light
  • Operating System: Wear OS Powered by Samsung
  • Connectivity: LTE, Bluetooth 5.0, Wi-Fi, NFC, GPS/GLONASS/Beidou

The Samsung Galaxy Watch4 40mm LTE R865F is the ultimate smartwatch for those who demand the best in health monitoring, connectivity, and style. Its robust features cater to fitness enthusiasts, busy professionals, and anyone looking to enhance their daily routine with smart technology. Whether you’re tracking your fitness goals, managing your schedule, or staying connected with loved ones, this smartwatch is designed to keep you ahead of the game.

Refurbished

Related smartwatches

Refurbished smartwatches at a great price – Apple Watch, Samsung Galaxy Watch and more. All smartwatches are tested, inspected and covered by warranty. Track your health, workouts and notifications right from your wrist.

Frequently asked questions

Does each device come with a charger?
Each device comes with a charging cable in the box. Smartphones and tablets also include a SIM-pin.
Battery capacity at least 80% — new battery if needed
All devices we sell have at least 80% battery capacity compared to a new device or battery. If the battery capacity is lower than 80%, we replace it with a new one. Therefore, all our batteries are in excellent condition.
Are all devices tested?

Yes. All our grade A, B and C devices undergo a thorough technical inspection at a certified testing and repair center in Estonia before being offered for sale.

The inspection includes, among other things:

  • Visual inspection of the device (display, casing, buttons, etc.),
  • Testing of key functions (touchscreen, cameras, microphone, speakers, charging, Wi-Fi, Bluetooth, etc.),
  • Checking the battery condition and charging functionality,
  • Updating the software and restoring factory settings where necessary,
  • Secure erasure of the previous user’s data in accordance with licensing and data protection requirements.

The testing and repair center follows international standards:

  • ISO 9001
  • ISO 14001
  • ISO 27001
  • ISO 45001

Only devices that pass all tests and meet our quality and safety requirements are offered for sale. The remaining devices are sent for servicing or removed from the product range.

Is there a warranty for the devices?
Yes, all our devices come with a 12-months warranty, noted in each product's description. If you encounter any issues, you can return the product within the warranty period. For full warranty terms, click here: [ Technocircle OÜ – Warranty Terms]
ESTO Hire Purchase – buy now, pay later!
ESTO Hire Purchase – buy now, pay later!

With ESTO hire purchase, you can pay for your purchase in installments. Simply select “ESTO Hire Purchase” as your payment method and apply quickly and easily during checkout. The decision is made in real time, and the entire process is fully digital.

  • Flexible payment schedule
  • Digital contract and signature
  • Approval in just seconds
Can I try the device in-store before buying?
Currently, we operate only online, so in-store testing isn’t available. However, we are committed to providing quality devices and are happy to offer more information to help you make an informed decision.

Contact us:
Email: [email protected]
Phone: +372 5022230

Contact us
More than 5,000 units in A & B condition available
More than 5,000 units in A & B condition available
A diverse range of products for both private and business customers.
Easy returns.
Easy returns.
Customer service that ensures easy returns.
Satisfied customers.
Satisfied customers.
Our best reward is your satisfaction.