Detailed comparison and review of Garmin Forerunner 45S and Garmin vívoactive 4S. With our comprehensive overview, you can simply compare size, design, functions, battery capacities, but also other key features of both smartwatches and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the watch that best fits your needs and expectations.
| GENERAL | Garmin Forerunner 45S | Garmin vívoactive 4S |
|---|
| Product Type | Sport watch | Sport watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | iOS, Android |
| Wearing Style | Watch style | Watch style |
| Width | 39.5 mm | 40 mm |
| Height | 39.5 mm | 40 mm |
| Depth | 11.4 mm | 12.7 mm |
| Weight | 32 g | 40 g |
| Body Material | - | Stainless steel, fibre-reinforced polymer |
| Protection | Waterproof | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Garmin Forerunner 45S | Garmin vívoactive 4S |
|---|
| Sensors | Accelerometer, heart rate | Accelerometer, thermometre, altimeter, gyro sensor, heart rate, electromagnetic compass, Pulse Ox sensor |
|---|---|---|
| Tracking Data | Distance, time, speed, calories burned, sleep activity, heart rate, stress level | Distance, time, calories burned, sleep activity, heart rate, steps taken, floors climbed, blood oxygen saturation, stress level, menstrual cycle, breathing rate, hydration |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device | Music remote handling, find phone function, idle alert, HR zones, Move IQ, Garmin Connect compatible, Find my Device, store & play music, rejecting a call, Garmin Elevate, TrueUp, Body Battery |
| Notifications | Calendar, Email, social apps | SMS, incoming calls |
| Vibrating Alert | Yes | - |
| Navigation (GPS) | - | GPS/GLONASS/Galileo receiver |
| Payment Technology | - | Garmin Pay |
| CONNECTIVITY | Garmin Forerunner 45S | Garmin vívoactive 4S |
|---|
| Wireless Interface | Bluetooth, ANT+ | Bluetooth, Wi-Fi, NFC, ANT+ |
|---|
| DISPLAY | Garmin Forerunner 45S | Garmin vívoactive 4S |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | Memory-in-Pixel LCD - colour |
|---|---|---|
| Resolution | 208 x 208 pixels | 218 x 218 pixels |
| Screen Size | 1.04" | 1.1" |
| Screen Protection | - | Corning Gorilla Glass 3 (scratch resistant glass) |
| INPUT DEVICE | Garmin Forerunner 45S | Garmin vívoactive 4S |
|---|
| Type | - | Touch sensitive screen, touch buttons |
|---|
| CASE | Garmin Forerunner 45S | Garmin vívoactive 4S |
|---|
| Case Size | - | 40 mm |
|---|---|---|
| Case Shape | Round | Round |
| Bezel | - | Slate stainless steeel |
| Case Back | - | Polymer |
| Case Details | White | Iris | Black | Black | Powder grey | White | Dust rose |
| BAND | Garmin Forerunner 45S | Garmin vívoactive 4S |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | S | - |
| Band Width | - | 18 mm |
| Fits Wrist with Circumference | 124-185 mm | 110-175 mm |
| Changeable | Yes | - |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Silicone |
| Band Colour | White | Iris | Black | Black | Powder grey | White | Dust rose |
| BATTERY | Garmin Forerunner 45S | Garmin vívoactive 4S |
|---|
| Technology | - | Lithium polymer |
|---|---|---|
| Battery Life | - | 7 day(s) |
| Battery Life Details | GPS mode - up to 13 hour(s) Smartwatch mode - up to 7 days |
Smartwatch mode - up to 7 days GPS mode - up to 15 hour(s) Smartwatch with music mode - up to 6 hour(s) GPS with Music mode - up to 5 hour(s) |
| Rechargeable Battery | - | Yes |
| MISCELLANEOUS | Garmin Forerunner 45S | Garmin vívoactive 4S |
|---|
| Included Accessories | Charging/data cable | Charging/data cable |
|---|---|---|
| Preloaded Software | - | Garmin Pay, Garmion Connect IQ |
| Max Depth of Water Resistance | 50 m | 50 m |
| Max Operating Temperature | - | 60 °C |
| Min Operating Temperature | - | -20 °C |
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