Garmin Forerunner 45 vs. Apple Watch Series 5 (GPS)

Smartwatch Comparison, Reviews and Tests

In depth comparison and review of Garmin Forerunner 45 and Apple Watch Series 5 (GPS). Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.

Smartwatch Specifications Comparison

Garmin Forerunner 45 vs. Apple Watch Series 5 (GPS) Comparison Chart
GENERAL Garmin Forerunner 45 Apple Watch Series 5 (GPS)
Product Type Smart watch Smart watch
Operating System - WatchOS 6
Supported Host Device OS iOS, Android iOS
Wearing Style Watch style Watch style
Audio Input - Microphone
Audio Output - Speaker
Width 42 mm 34 mm
Height 42 mm 40 mm
Depth 11.4 mm 10.74 mm
Weight 36 g 30.8 g
Body Material - Aluminium
Protection Waterproof Water-resistant
Clock Display Yes Yes
FEATURES Garmin Forerunner 45 Apple Watch Series 5 (GPS)
Sensors Accelerometer, heart rate Accelerometer, ambient light sensor, gyro sensor, gesture, geomagnetic sensor, barometric altimeter, optical heart sensor, electrical heart sensor
Tracking Data Distance, time, speed, calories burned, sleep activity, heart rate, stress level Distance, time, calories burned, activity, heart rate, steps taken, UV index, menstrual cycle
Goal Setting Yes Yes
Features Music remote handling, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device Music remote handling, ECG accurate heart rate, listening to music, Retina Display technology, call alerts, Fall detection, Emergency SOS
Notifications Calendar, Email, social apps Calendar, SMS, Email
Vibrating Alert Yes Yes
Feedback Type - Audio alert, vibration alert, visual interface
Navigation (GPS) - GPS/GLONASS/Galileo/QZSS receiver
Payment Technology - Apple Pay
IoT Intelligent Assistant - Siri
IoT Voice Controlled - Direct
CONNECTIVITY Garmin Forerunner 45 Apple Watch Series 5 (GPS)
Wireless Interface Bluetooth, ANT+ IEEE 802.11b/g/n, Bluetooth 5.0
DISPLAY Garmin Forerunner 45 Apple Watch Series 5 (GPS)
Type Memory-in-Pixel LCD - colour - transflective LTPO OLED - colour
Resolution 208 x 208 pixels 324 x 394 pixels
Screen Size 1.04" -
Screen Protection - Ion-X glass
Always On Display (AOD) - Yes
INPUT DEVICE Garmin Forerunner 45 Apple Watch Series 5 (GPS)
Type - Touch sensitive screen (Force Touch)
CASE Garmin Forerunner 45 Apple Watch Series 5 (GPS)
Case Size - 40 mm
Case Shape Round Rectangular
Case Back - Sapphire crystal and ceramic back
Case Details Black Silver aluminium | Space grey aluminium | Gold aluminium
Crown Type - Digital with haptic feedback
BAND Garmin Forerunner 45 Apple Watch Series 5 (GPS)
Band Type Band Sport band
Band Size L S/M/L
Fits Wrist with Circumference 129-197 mm 130-200 mm
Changeable Yes Yes
Clasp Type Buckle Pin-and-tuck
Band Material Silicone Fluoroelastomer
Band Colour Black | Lava red White | Black | Pink sand
STORAGE Garmin Forerunner 45 Apple Watch Series 5 (GPS)
Storage Capacity - 32 GB
CPU Garmin Forerunner 45 Apple Watch Series 5 (GPS)
Manufacturer - Apple
CPU Type - S5
Features - W3 Apple wireless chip
BATTERY Garmin Forerunner 45 Apple Watch Series 5 (GPS)
Technology - Lithium Ion
Battery Life - 18 hours
Battery Life Details GPS mode - up to 13 hour(s)
Smartwatch mode - up to 7 days
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Rechargeable Battery - Yes
Wireless Charging - Yes
MISCELLANEOUS Garmin Forerunner 45 Apple Watch Series 5 (GPS)
Included Accessories Charging/data cable Power adapter, magnetic charging cable
Preloaded Software - Apple Pay
SAR Value - 0.09 W/kg (head), 0.07 W/kg (limb)
Max Depth of Water Resistance 50 m 50 m
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