Smartwatches · 2023 · Samsung

Samsung Galaxy Watch6 (40 mm)

The Galaxy Watch6 40 mm is the small size of Samsung’s 2023 Wear OS watch. It has a 1.3-inch Super AMOLED display under sapphire crystal, the dual-core Exynos W930 and a 300 mAh battery, plus the BioActive sensor for heart rate, ECG and body composition. Testing praised the performance and run tracking; the most common owner complaint is battery life that needs a charge every day.

Galaxy Watch6 40 mm: SM-R930 (Bluetooth) and SM-R935 (LTE); Graphite and Gold. The 44 mm Galaxy Watch6 and the Galaxy Watch6 Classic are separate models with different displays, batteries and weights.

Samsung Galaxy Watch6 (40 mm) — Samsung image of the Galaxy Watch6 40 mm Bluetooth (SM-R930) in Graphite.
Samsung image of the Galaxy Watch6 40 mm Bluetooth (SM-R930) in Graphite.

Specifications

SpecificationValue
Display1.3-inch (33.3 mm) 432 × 432 Super AMOLED; full-colour Always On Display

The 44 mm model has a 1.5-inch, 480 × 480 display.

GlassSapphire Crystal
ProcessorExynos W930, dual-core 1.4 GHz
Memory and storage2 GB memory + 16 GB storage
Battery300 mAh (typical); up to 40 hours with Always On Display off, up to 30 hours with it on

According to Samsung, an 8-minute quick charge adds about 8 hours of use; charging is WPC-based wireless.

Operating systemWear OS 4 (Powered by Samsung) with One UI 5 Watch at launch
SensorsSamsung BioActive (Optical Heart Rate + Electrical Heart Signal + Bioelectrical Impedance Analysis), temperature, accelerometer, barometer, gyro, geomagnetic, light sensor

ECG and blood pressure work through the Samsung Health Monitor app only in markets where they are approved; blood pressure needs calibration with a cuff every four weeks. Body composition should not be used by people with implanted devices such as pacemakers or during pregnancy.

ConnectivityBluetooth 5.3, Wi‑Fi 2.4 + 5 GHz, NFC, GPS/Glonass/Beidou/Galileo; LTE (SM-R935 only)
Durability5ATM + IP68, MIL-STD-810H

5ATM means water resistance to 50 metres for up to 10 minutes; the watch is not suitable for diving or high-pressure water. IP68 covers 1.5 metres of fresh water for 30 minutes.

Phone compatibilityAndroid 10 or higher with more than 1.5 GB of memory

Some features, such as the camera controller and health measurements, need a Galaxy phone.

Size and weight38.8 × 40.4 × 9.0 mm; 28.7 g

From the manufacturer

Samsung presents the Galaxy Watch6 with a thinner bezel, a larger display, improved sleep coaching and fast charging. Samsung Newsroom

Strengths and limitations

  • TechRadar found the Watch6 smooth thanks to the new processor and extra RAM, and rated automatic walk/run detection and detailed running metrics highly. Body composition readings were consistent with a smart scale, though the measurement was hard to start on the small 40 mm watch at first. Battery averaged about 25 hours; a 75-minute GPS run took it from 100% to 69%, and sleep tracking needed a charge every day. The high heart rate alert did not trigger during a test run, and data cannot easily be shared with Fitbit or Google Fit.

    TechRadar review (August 2023, updated November 2024); test units including the 40 mm size, with a Samsung phone.

    TechRadar: Samsung Galaxy Watch 6 review

Owner experiences and issues

  • In 40 mm owner reviews on Best Buy Canada the most common theme is battery: eleven separate owners said the watch lasted less than a day or at most a day and a half to two days, several could not get through the night for sleep tracking, and one compared it with a Fitbit that lasts a week. One owner said the watch kept searching for the phone when out of range and was dead by noon; another said charging took 3–4 hours. Positive reviews cover health and sleep tracking, fall detection, watch faces and the camera controller. One owner could not install the Samsung Health Monitor app without a mobile network.

    Best Buy Canada, Galaxy Watch6 40 mm Graphite listing (SKU 17312224, model SM-R935), 30 reviews; reviews are syndicated from Samsung Canada and do not separate the Bluetooth and LTE versions. Battery life depends on settings and use; no failure rate was drawn.

    Best Buy Canada: Samsung Galaxy Watch6 40 mm customer reviews

Tags

2023SAMSUNGGALAXY-WATCHWEAR-OSAKILLI-SAATAMOLEDEKG

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Sources

  1. Samsung Newsroom: Galaxy Watch6 and Galaxy Watch6 Classic announcement and specifications
  2. Samsung Levant: Galaxy Watch6 40 mm Bluetooth (SM-R930) product page
  3. TechRadar: Samsung Galaxy Watch 6 review
  4. Best Buy Canada: Samsung Galaxy Watch6 40 mm customer reviews