In depth comparison and review of Garmin Forerunner 45 and Garmin D2 Delta S. 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 45 | Garmin D2 Delta S |
|---|
| Product Type | Smart watch | Sport watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | iOS, Android |
| Wearing Style | Watch style | Watch style |
| Width | 42 mm | 42 mm |
| Height | 42 mm | 42 mm |
| Depth | 11.4 mm | 15.4 mm |
| Weight | 36 g | 65 g |
| Body Material | - | Fibre-reinforced polymer |
| Protection | Waterproof | Waterproof |
| Clock Display | Yes | Yes |
| FEATURES | Garmin Forerunner 45 | Garmin D2 Delta S |
|---|
| Sensors | Accelerometer, heart rate | Accelerometer, thermometre, gyro sensor, heart rate, barometric altimeter, 3-axis compass |
|---|---|---|
| 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, stress level |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device | Music remote handling, HRmax, camera remote control, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device, store & play music, Garmin Elevate, TrueUp |
| Notifications | Calendar, Email, social apps | SMS, Email |
| Vibrating Alert | Yes | Yes |
| Navigation (GPS) | - | GPS/GLONASS receiver |
| Payment Technology | - | Garmin Pay |
| CONNECTIVITY | Garmin Forerunner 45 | Garmin D2 Delta S |
|---|
| Wireless Interface | Bluetooth, ANT+ | Bluetooth, Wi-Fi, ANT+ |
|---|
| DISPLAY | Garmin Forerunner 45 | Garmin D2 Delta S |
|---|
| 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 | - | Domed sapphire crystal |
| INPUT DEVICE | Garmin Forerunner 45 | Garmin D2 Delta S |
|---|
| Type | - | Touch buttons |
|---|
| CASE | Garmin Forerunner 45 | Garmin D2 Delta S |
|---|
| Case Size | - | 42 mm |
|---|---|---|
| Case Shape | Round | Round |
| Bezel | - | Stainless steel |
| Case Back | - | Metal |
| Case Details | Black | Rose gold-tone |
| BAND | Garmin Forerunner 45 | Garmin D2 Delta S |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | L | - |
| Band Width | - | 20 mm |
| Fits Wrist with Circumference | 129-197 mm | - |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Leather |
| Band Colour | Black | Lava red | Beige |
| STORAGE | Garmin Forerunner 45 | Garmin D2 Delta S |
|---|
| Storage Capacity | - | 16 GB |
|---|
| BATTERY | Garmin Forerunner 45 | Garmin D2 Delta S |
|---|
| Technology | - | Lithium Ion |
|---|---|---|
| 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 11 hour(s) GPS with Music mode - up to 4.5 hour(s) UltraTrac mode - up to 25 hour(s) |
| Rechargeable Battery | - | Yes |
| MISCELLANEOUS | Garmin Forerunner 45 | Garmin D2 Delta S |
|---|
| Included Accessories | Charging/data cable | Charging/data cable, silicone wrist strap (white) |
|---|---|---|
| Preloaded Software | - | Garmin Pay, Garmin Pilot |
| Max Depth of Water Resistance | 50 m | 100 m |
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