In depth comparison and review of Garmin Forerunner 45S and Garmin fēnix 6S Sapphire. 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.
| GENERAL | Garmin Forerunner 45S | Garmin fēnix 6S Sapphire |
|---|
| Product Type | Sport watch | Sport watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | iOS, Android |
| Wearing Style | Watch style | Watch style |
| Width | 39.5 mm | 42 mm |
| Height | 39.5 mm | 42 mm |
| Depth | 11.4 mm | 13.8 mm |
| Weight | 32 g | 44 g |
| Body Material | - | Stainless steel, fibre-reinforced polymer |
| Protection | Waterproof | Waterproof |
| Clock Display | Yes | Yes |
| FEATURES | Garmin Forerunner 45S | Garmin fēnix 6S Sapphire |
|---|
| Sensors | Accelerometer, heart rate | Accelerometer, barometric altimeter, pulse oximeter, 3-axis compass, optical heart sensor |
|---|---|---|
| Tracking Data | Distance, time, speed, calories burned, sleep activity, heart rate, stress level | Distance, calories burned, activity, sleep activity, heart rate, steps taken, blood oxygen saturation |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device | Bluetooth Smart technology, store & play music, PacePro pace guidance |
| Notifications | Calendar, Email, social apps | SMS, social apps, incoming calls |
| Vibrating Alert | Yes | Yes |
| Navigation (GPS) | - | GPS/GLONASS/Galileo receiver |
| CONNECTIVITY | Garmin Forerunner 45S | Garmin fēnix 6S Sapphire |
|---|
| Wireless Interface | Bluetooth, ANT+ | Bluetooth, Wi-Fi, ANT+ |
|---|
| DISPLAY | Garmin Forerunner 45S | Garmin fēnix 6S Sapphire |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | Memory-in-Pixel LCD - colour - transflective |
|---|---|---|
| Resolution | 208 x 208 pixels | 240 x 240 pixels |
| Screen Size | 1.04" | 1.2" |
| Screen Protection | - | Sapphire glass |
| CASE | Garmin Forerunner 45S | Garmin fēnix 6S Sapphire |
|---|
| Case Size | - | 42 mm |
|---|---|---|
| Case Shape | Round | Round |
| Case Details | White | Iris | Black | Rose gold-tone | Carbon grey DLC |
| BAND | Garmin Forerunner 45S | Garmin fēnix 6S Sapphire |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | S | - |
| Fits Wrist with Circumference | 124-185 mm | - |
| Changeable | Yes | - |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Silicone |
| Band Colour | White | Iris | Black | Powder grey | Black | Heathered black |
| STORAGE | Garmin Forerunner 45S | Garmin fēnix 6S Sapphire |
|---|
| Storage Capacity | - | 32 GB |
|---|
| BATTERY | Garmin Forerunner 45S | Garmin fēnix 6S Sapphire |
|---|
| Technology | - | Lithium Ion |
|---|---|---|
| Battery Life Details | GPS mode - up to 13 hour(s) Smartwatch mode - up to 7 days |
Smartwatch mode - up to 9 days GPS mode - up to 25 hour(s) Max Battery GPS Mode - up to 50 hour(s) Expedition GPS Mode - up to 20 days Battery Saver Watch Mode - up to 34 days GPS with Music mode - up to 6 hour(s) |
| Rechargeable Battery | - | Yes |
| MISCELLANEOUS | Garmin Forerunner 45S | Garmin fēnix 6S Sapphire |
|---|
| Included Accessories | Charging/data cable | Charging/data cable |
|---|---|---|
| Max Depth of Water Resistance | 50 m | 100 m |
| Warranty | - | 1-year warranty |
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