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Garmin Fēnix 8 Pro (47mm) vs Samsung Galaxy Watch Ultra (2025)

Physical
Case diameter 47 mm —
Case thickness 16 mm —
Weight 77 g —
Case material Titanium —
Bezel material Titanium —
Lens / crystal Sapphire crystal —
Strap material silicone —
Strap width — —
Colors available — —
Water resistance 100 m —
Military standard — —
Display
Display type AMOLED —
Display diagonal 1.4 mm —
Resolution width 454 px —
Resolution height 454 px —
Touchscreen No No
Always-on display No Yes
Max brightness — —
Battery
Smartwatch mode 360 h —
GPS-only mode — —
All-systems GPS mode — —
Max battery saver mode — —
Charging type Garmin proprietary plug charger —
Solar charging No No
Wireless charging No No
Positioning
GNSS systems — —
Multi-band / dual-frequency Yes Yes
Offline maps No No
Built-in maps Yes No
Turn-by-turn navigation No No
Sensors
Optical heart rate Yes Yes
ECG Yes Yes
SpO2 / pulse oximeter Yes Yes
Skin temperature No No
Accelerometer No No
Gyroscope No No
Compass Yes No
Barometric altimeter Yes Yes
Ambient thermometer No No
Microphone No No
Speaker No No
Connectivity
Bluetooth No No
Wi-Fi Yes Yes
NFC payments No Yes
Cellular / LTE Yes Yes
ANT+ No No
Music storage No No
Third-party apps No No
Satellite communication Yes No
Health & Fitness
Sleep tracking Yes Yes
Stress tracking No No
HRV tracking Yes No
Training load Yes No
Training readiness / recovery No No
VO2 max estimate Yes No
Running dynamics No No
Body battery / energy score No Yes
Menstrual cycle tracking Yes No
Fall / incident detection No No
Guided workouts No No
Multisport / triathlon mode Yes Yes
Software
Operating system — —
Companion app — —
Voice assistant — —
Contactless payments No No