Samsung Galaxy Watch 9 vs Garmin Venu 4 specs comparison

The Galaxy Watch 9 is stronger for apps, smart features and everyday smartwatch use. The Venu 4 makes more sense if battery life, fitness tracking and training tools are higher priorities.

At a glance

What's different?

The strongest database-backed differences, without pretending every different number is an advantage.

Samsung Galaxy Watch 9

  • Phone compatibility Android with Google Mobile Services
  • Offline maps Not available on the other model
  • Blood pressure measurement Yes (Samsung Health Monitor; availability varies by market, calibration required)
  • Cellular connectivity Not available on the other model
  • Body composition Not available on the other model

Garmin Venu 4 45 mm

  • Phone compatibility Android and iOS
  • Much longer battery life 12 days vs 40 hours
  • More advanced training tools Body Battery, Training Readiness, Training Status +5 more
  • LED flashlight Not available on the other model
Both include ECG, blood oxygen tracking, skin temperature tracking, HRV tracking, on-board music, Bluetooth calling, a microphone.
Full comparison

The full record

73 specifications across 6 areas, with 30 genuine differences.

1. Design & display 9 differences · Samsung Galaxy Watch 9 leads on Weight, Display size +1 Samsung Galaxy Watch 9
Fact
Samsung Galaxy Watch 9
Garmin Venu 4 45 mm
Release date
2026-07
September 2025
Physical size
44 mm: 46.0 x 43.7 x 8.6 mm; 40 mm: 42.7 x 40.4 x 8.6 mm
45 x 45 x 12.5 mm
Weight
44 mm: 34.0 g; 40 mm: 31.5 g
56 g with included band
Material
Armor Aluminum case; sapphire crystal
Stainless steel and fiber-reinforced polymer
Water resistance
5 ATM; IP68; MIL-STD-810H
5 ATM
Color options
Graphite, Silver, Cream
Slate, Silver
Display type
Super AMOLED, full-colour Always On Display
AMOLED touchscreen
Display size
44 mm: 1.47 inch (37.3 mm); 40 mm: 1.34 inch (34 mm)
1.4 inch
Display resolution
44 mm: 480 x 480 pixels; 40 mm: 438 x 438 pixels
454 x 454 pixels
2. Battery & charging 3 differences · Garmin Venu 4 45 mm leads on Battery life Garmin Venu 4 45 mm
Fact
Samsung Galaxy Watch 9
Garmin Venu 4 45 mm
Battery
Rechargeable battery; 44 mm: 445 mAh; 40 mm: 390 mAh
Rechargeable lithium-ion battery
Battery life
Up to 40 hours with AOD off; up to 30 hours with AOD on
Up to 12 days smartwatch mode (4 days always-on); up to 25 days Battery Saver; up to 20 hours GPS-only GNSS; up to 19 hours all-systems GNSS; up to 9 hours all-systems GNSS with music
Charging
Fast wireless charging
USB
3. Sensors & positioning 3 differences · Samsung Galaxy Watch 9 leads on Geomagnetic, Galvanic skin response Samsung Galaxy Watch 9
Fact
Samsung Galaxy Watch 9
Garmin Venu 4 45 mm
GNSS type
Built-in dual-band GNSS
Multi-band GNSS with SatIQ
GPS
Yes
Yes
GALILEO
Yes
Yes
GLONASS
Yes
Yes
QZSS
Yes
Yes
Beidou
Yes
Yes
Accelerometer
Yes
Yes
Gyroscope
Yes
Yes
Barometric altimeter
Yes
Yes
Compass
Yes
Yes
Geomagnetic
Yes
No
Ambient light sensor
Yes
Yes
Optical heart rate
Yes
Yes
Electrical heart rate
Yes
Yes
SpO2
Yes
Yes
Temperature
Yes
Yes
Galvanic skin response
Yes
No
Microphone
Yes
Yes
Speakers
Yes
Yes
Vibration motor
Yes
Yes
4. Health & activity 3 differences · Samsung Galaxy Watch 9 leads on Blood pressure, Body composition +1 Samsung Galaxy Watch 9
Fact
Samsung Galaxy Watch 9
Garmin Venu 4 45 mm
Steps
Yes
Yes
Distance
Yes
Yes
Calories burned
Yes
Yes
Floors
Yes
Yes
Sports tracking
Yes
Yes
Sleep
Yes
Yes
Heart rate
Yes
Yes
HRV
Yes
Yes
Stress
Yes
Yes
Blood oxygen
Yes
Yes
Respiration rate
Yes
Yes
Skin temperature
Yes
Yes
ECG
Yes
Yes
Blood pressure
Yes (Samsung Health Monitor; availability varies by market, calibration required)
No
Body composition
Yes
No
Glucose
No
No
Hydration level
No
No
UV exposure
No
No
Calorie intake
No
No
Hyperglycemia risk assessment
No
No
Arterial stiffness detection
No
No
Pulse wave arrhythmia analysis
Yes
No
5. Smart features 7 differences · no clear overall edge No clear edge
Fact
Samsung Galaxy Watch 9
Garmin Venu 4 45 mm
Smartphone compatibility
Android with Google Mobile Services
Android and iOS
Operating system at launch
Wear OS 7 Powered by Samsung; One UI 9 Watch
Garmin proprietary
Bluetooth
Yes (6.0)
Yes
Wi-Fi
Yes (802.11 a/b/g/n, 2.4/5 GHz)
Yes
NFC / connected pay
Yes
Yes
UWB
No
No
Cellular
Optional LTE/eSIM
No
Smartphone notifications
Yes
Yes
Bluetooth calling
Yes
Yes (paired smartphone)
Smartphone music control
Yes
Yes
On-board music storage
Yes
Yes
Voice assistant
Google Gemini / Bixby
Yes (paired smartphone)
6. Navigation & safety 5 differences · advantages split between the two Mixed
Fact
Samsung Galaxy Watch 9
Garmin Venu 4 45 mm
Maps
Yes (Google Maps)
No
Offline maps
Yes (Google Maps)
No
Navigation
Yes (turn-by-turn navigation)
Yes
Emergency SOS
Yes
Yes (paired smartphone)
Satellite SOS
No
No
Fall detection
Yes
Yes
LED flashlight
No
Yes

Individual specifications

These technical specs are correct to the best of our knowledge at the time of publishing.