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Garmin Forerunner 965 vs Samsung Galaxy Watch 3

Updated Apr 2026smartwatches
Garmin Forerunner 965
Garmin
Garmin Forerunner 965
$599
8.6/10
Winner
VS
Samsung Galaxy Watch 3
Samsung
Samsung Galaxy Watch 3
$399
7.8/10

The Verdict

Garmin's Forerunner 965 dominates battery performance with up to 23 days in smartwatch mode versus Samsung's Galaxy Watch 3's measly 1.5 days typical usage. The Garmin's 1.4-inch AMOLED display at 454 x 454 resolution also surpasses the Galaxy Watch 3's 360 x 360 Super AMOLED screen. For fitness tracking, both offer SpO2 and heart rate monitoring, but Samsung includes ECG functionality while Garmin adds skin temperature monitoring. Samsung's stainless steel or titanium construction with MIL-STD-810G durability rating feels more premium than Garmin's fiber-reinforced polymer, though both handle water activities well (10 ATM vs 5 ATM). The Galaxy Watch 3 weighs slightly less at 48.2g for the 41mm model and includes cellular connectivity, making it genuinely practical for calls without your phone. At $200 less, Samsung offers quicker smartphone integration if you're in the Android ecosystem. However, Garmin's exceptional battery life, superior display resolution, and specialized fitness tracking make it ideal for runners and outdoor athletes who want multi-week usage between charges. Samsung suits users prioritizing smartwatch versatility and lighter weight. Choose Garmin for athletic performance, Samsung for everyday smart features.

ValueWatch 3
BatteryForerunner 965
DisplayForerunner 965
SoftwareWatch 3
health_trackingWatch 3

Who Should Buy

Buy the Garmin Forerunner 965 if…

  • 23-day battery life in smartwatch mode for serious endurance athletes
  • First Forerunner with AMOLED display — bright and easy to read
  • Multi-band GPS with SatIQ for highly accurate outdoor tracking

Buy the Samsung Galaxy Watch 3 if…

  • Physical rotating bezel provides tactile, satisfying navigation
  • Premium stainless steel build with classic watch aesthetics
  • ECG and SpO2 monitoring were cutting-edge at launch

Category Scores

Garmin Forerunner 965
Samsung Galaxy Watch 3
Value
8.2
8.5
Battery
9.5
5.2
Display
8.8
8.2
Software
8.1
8.6
health_tracking
8.4
8.7

Pros & Cons

Garmin Forerunner 965

Pros

  • 23-day battery life in smartwatch mode for serious endurance athletes
  • First Forerunner with AMOLED display — bright and easy to read
  • Multi-band GPS with SatIQ for highly accurate outdoor tracking
  • Advanced running metrics: running power, VO2 max, race predictor
  • Garmin Pay NFC and music storage for offline playback

Cons

  • No ECG sensor
  • No cellular connectivity
  • Garmin OS app ecosystem is very limited compared to Wear OS or watchOS
  • Expensive at $599 for a running-focused device

Samsung Galaxy Watch 3

Pros

  • Physical rotating bezel provides tactile, satisfying navigation
  • Premium stainless steel build with classic watch aesthetics
  • ECG and SpO2 monitoring were cutting-edge at launch
  • Fall detection with automatic SOS alerts
  • Thinner and lighter than Galaxy Watch (2018)

Cons

  • Tizen OS is now discontinued — no new app development
  • Battery life of 1.5 days typical requires frequent charging
  • Older Exynos 9110 is noticeably slower than W920
  • Heavy at 48-54 g — uncomfortable for sleep tracking

Full Specifications

SpecGarmin Forerunner 965Samsung Galaxy Watch 3
SoftwareGarmin OSTizen OS 5.5
Body
Weight53 g48.2 g (41mm) / 53.8 g (45mm)
Case materialFiber-reinforced polymer with titanium bezelStainless Steel / Titanium
Water resistance10 ATM5ATM + IP68, MIL-STD-810G
Health & Sensors
ECG
SpO₂
Skin temperature
Heart rate
Sleep tracking
Battery
Battery lifeUp to 23 days smartwatch mode, 31 hrs GPSUp to 2 days (typical ~1.5 days)
Display
Size1.4 inch41mm / 45mm
TypeAMOLEDSuper AMOLED
Always-on display
Resolution454 x 454360 x 360
Processor
ChipsetGarmin proprietaryExynos 9110
Connectivity
GPS
NFC
Wi-Fi
Cellular
Bluetooth5.05.0

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This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.

Explore more in smartwatches, see all Garmin products or all Samsung products. View full details for the Garmin Forerunner 965 or the Samsung Galaxy Watch 3.