Side by side comparison and review of Garmin Forerunner 45S and Suunto 3. 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 | Suunto 3 |
|---|
| Product Type | Sport watch | Sport watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | iOS, Android |
| Activity/Sport | - | Running, swimming, cycling |
| Wearing Style | Watch style | Watch style |
| Width | 39.5 mm | 43 mm |
| Height | 39.5 mm | 43 mm |
| Depth | 11.4 mm | - |
| Weight | 32 g | 36 g |
| Body Material | - | ABS case |
| Protection | Waterproof | Waterproof |
| Colours | - | Light gold, pebble white |
| Clock Display | Yes | Yes |
| FEATURES | Garmin Forerunner 45S | Suunto 3 |
|---|
| Sensors | Accelerometer, heart rate | Accelerometer, heart rate |
|---|---|---|
| Tracking Data | Distance, time, speed, calories burned, sleep activity, heart rate, stress level | Distance, speed, calories burned, activity, sleep activity, heart rate, steps taken, cadence, stress level, lap time |
| Modes | - | Exercise mode |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device | GPS via mobile, sunrise/sunset times, weather information |
| Notifications | Calendar, Email, social apps | - |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Vibration alert, visual interface |
| Keypad Lock | - | Yes |
| CONNECTIVITY | Garmin Forerunner 45S | Suunto 3 |
|---|
| Wireless Interface | Bluetooth, ANT+ | Bluetooth |
|---|
| DISPLAY | Garmin Forerunner 45S | Suunto 3 |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | LED - colour |
|---|---|---|
| Resolution | 208 x 208 pixels | 218 x 218 pixels |
| Screen Size | 1.04" | - |
| CASE | Garmin Forerunner 45S | Suunto 3 |
|---|
| Crystal Type | - | Polyamide |
|---|---|---|
| Case Shape | Round | Round |
| Bezel | - | Stainless steel |
| Case Details | White | Iris | Black | Slate grey | Slate grey/copper | Moss grey | Granite red | Black |
| BAND | Garmin Forerunner 45S | Suunto 3 |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Size | S | - |
| Band Width | - | 20 mm |
| Fits Wrist with Circumference | 124-185 mm | 120-210 mm |
| Changeable | Yes | - |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Silicone |
| Band Colour | White | Iris | Black | Slate grey | Moss grey | Granite red | Black |
| BATTERY | Garmin Forerunner 45S | Suunto 3 |
|---|
| Technology | - | Lithium Ion |
|---|---|---|
| Battery Life | - | 5 day(s) |
| Battery Life Details | GPS mode - up to 13 hour(s) Smartwatch mode - up to 7 days |
Training mode/GPS off - up to 40 hour(s) Training mode/GPS on - up to 30 hour(s) |
| Standby Time | - | 10 days |
| Rechargeable Battery | - | Yes |
| MISCELLANEOUS | Garmin Forerunner 45S | Suunto 3 |
|---|
| Included Accessories | Charging/data cable | USB charging cable |
|---|---|---|
| Preloaded Software | - | Stopwatch, Alarm Clock |
| Max Depth of Water Resistance | 50 m | 30 m |
| Max Operating Temperature | - | 60 °C |
| Min Operating Temperature | - | -20 °C |
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