Side by side comparison and review of Garmin Forerunner 45S and Garmin Instinct Solar. Compare design, displays, functions, batteries and other key specifications and features to simplify the choice of your perfect smartwatch. Our goal is to make it easier for you to decide on the watch that will best meet your expectations by revealing the main differences between the products.
| GENERAL | Garmin Forerunner 45S | Garmin Instinct Solar |
|---|
| Product Type | Sport watch | Sport watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | iOS, Android |
| Activity/Sport | - | Running, swimming, ski, cycling, hiking, fishing, climbing, snowboarding, rower, kayaking, hunting, jumpmaster, stand up paddleboarding |
| Wearing Style | Watch style | Watch style |
| Width | 39.5 mm | 45 mm |
| Height | 39.5 mm | 45 mm |
| Depth | 11.4 mm | 15.3 mm |
| Weight | 32 g | 53 g |
| Body Material | - | Fibre-reinforced polymer |
| Protection | Waterproof | Waterproof |
| Colours | - | Pipeline | Tidal blue | Cloudbreak |
| Clock Display | Yes | Yes |
| FEATURES | Garmin Forerunner 45S | Garmin Instinct Solar |
|---|
| Sensors | Accelerometer, heart rate | Accelerometer, barometer, thermometre, altimeter, 3-axis compass, optical heart sensor |
|---|---|---|
| Tracking Data | Distance, time, speed, calories burned, sleep activity, heart rate, stress level | Distance, time, speed, calories burned, activity, sleep activity, heart rate, steps taken, floors climbed, blood oxygen saturation, stress level |
| Modes | - | Stealth mode |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device | Music remote handling, Heart Rate target zone selector, find phone function, Bluetooth Smart technology, VIRB control, inactivity alert, Move IQ, Find my Device, Garmin Elevate, TrueUp, Body Battery, solar charging, night vision compatibility, dual grid coordinates format, trackback routing |
| Notifications | Calendar, Email, social apps | Missed calls, calendar, SMS, Email, social apps |
| Vibrating Alert | Yes | Yes |
| Navigation (GPS) | - | GPS/GLONASS/Galileo receiver |
| CONNECTIVITY | Garmin Forerunner 45S | Garmin Instinct Solar |
|---|
| Wireless Interface | Bluetooth, ANT+ | Bluetooth, ANT+ |
|---|
| DISPLAY | Garmin Forerunner 45S | Garmin Instinct Solar |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | Memory-in-Pixel LCD - monochrome - transflective |
|---|---|---|
| Resolution | 208 x 208 pixels | 128 x 128 pixels |
| Screen Size | 1.04" | - |
| Dimensions (WxH) | - | 23 mm x 23 mm |
| Screen Protection | - | Power Glass |
| INPUT DEVICE | Garmin Forerunner 45S | Garmin Instinct Solar |
|---|
| Type | - | Touch buttons |
|---|
| CASE | Garmin Forerunner 45S | Garmin Instinct Solar |
|---|
| Case Shape | Round | Round |
|---|---|---|
| Case Details | White | Iris | Black | Graphite | Black | Moss | Flame red | Sunburst | Lichen camo |
| BAND | Garmin Forerunner 45S | Garmin Instinct Solar |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | S | - |
| Band Width | - | 22 mm |
| Fits Wrist with Circumference | 124-185 mm | 132-224 mm |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Silicone |
| Band Colour | White | Iris | Black | Graphite | Black | Moss | Flame red | Sunburst | Lichen camo | Orchid | Graphite camo |
| BATTERY | Garmin Forerunner 45S | Garmin Instinct Solar |
|---|
| Technology | - | Lithium Ion |
|---|---|---|
| Battery Life | - | 56 day(s) |
| Battery Life Details | GPS mode - up to 13 hour(s) Smartwatch mode - up to 7 days |
Smartwatch mode - up to 24 days Smartwatch mode (with solar) - up to 54 days Battery Saver Watch Mode - up to 56 days Max Battery GPS Mode - up to 30 hour(s) Max Battery GPS Mode (with solar) - up to 38 hour(s) |
| Rechargeable Battery | - | Yes |
| MISCELLANEOUS | Garmin Forerunner 45S | Garmin Instinct Solar |
|---|
| Included Accessories | Charging/data cable | Charging/data cable |
|---|---|---|
| Compliant Standards | - | MIL-STD-810 |
| Max Depth of Water Resistance | 50 m | 100 m |
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