We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Gold aluminium round smartwatch, 40 mm case, sport band

SAMSUNG

SAMSUNG Galaxy Watch4 Aluminum 40mm LTE Gold

SKU CH-RAT8-QRB8M

A 40 mm LTE smartwatch with aluminum case and sport band tracks body composition, sleep, SpO2, ECG, fitness and VO₂ max while extending phone calls and texts

  • Body composition analysis on your wrist
  • Advanced sleep tracking with continuous SpO2 monitoring
  • ECG monitoring for accurate heart readings
  • Auto workout tracking with live coaching sessions
  • LTE connectivity for calls and music on the go

Galaxy Watch4 Aluminum 40mm LTE

The Samsung Galaxy Watch4 Aluminum 40mm LTE is a smartwatch designed for users who want comprehensive health tracking and phone connectivity on the wrist. It features a round gold aluminum case paired with a sport band for everyday wear.

Who this suits and who should look elsewhere

This watch suits users who want body composition analysis, ECG monitoring, advanced sleep tracking with continuous SpO2, and automatic workout detection. It also fits those who want to take calls, read texts, and control music without their phone nearby. Buyers who need longer battery life for multi-day tracking without charging or who require built-in offline maps for navigation should consider other options.

Capacity and headroom

The 40mm case size and 0.79 millimeter band width provide a compact fit for smaller wrists, while the 4.53 inch band length offers adjustment room. Onboard sensors handle body composition, heart rhythm, blood oxygen, and VO2 max readings during workouts. LTE connectivity extends phone features when the handset is out of range, though continuous GPS and sensor use will reduce single-charge runtime.

Highlights

  • Body composition analysis on your wrist
  • Advanced sleep tracking with continuous SpO2 monitoring
  • ECG monitoring for accurate heart readings
  • Auto workout tracking with live coaching sessions
  • LTE connectivity for calls and music on the go

Specifications

No published specifications for this item yet.

Questions about this item

What size wrist does the 4.53-inch sport band cover for the 40mm watch?

The included sport band measures 4.53 inches in length and is designed to fit wrists that fall within the standard range for the 40mm case size.

Can I pair this LTE model with my existing non-Samsung Android phone for calls and texts?

The watch extends your phone for calls, texts and music, and works with compatible Android smartphones that support the required companion app and LTE provisioning.

How do I verify the ECG and body composition sensors are functioning after initial setup?

Open the Samsung Health app on the watch, run an ECG recording and a body composition measurement; both will display a result screen confirming the sensors captured data successfully.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.